\n *\n * @returns {object} Signed HTTP request\n */\n Signer.sign = function (request, accessInfo, serviceInfo) {\n request.headers = request.headers || {};\n if (request.body && !request.data) {\n throw new Error('The attribute \"body\" was found on the request object. Please use the attribute \"data\" instead.');\n }\n var requestToSign = __assign(__assign({}, request), { body: request.data, url: new URL(request.url) });\n var options = getOptions(requestToSign, accessInfo, serviceInfo);\n var signedRequest = signRequest(requestToSign, options);\n // Prior to using `signRequest`, Signer accepted urls as strings and outputted urls as string. Coerce the property\n // back to a string so as not to disrupt consumers of Signer.\n signedRequest.url = signedRequest.url.toString();\n // HTTP headers should be case insensitive but, to maintain parity with the previous Signer implementation and\n // limit the impact of this implementation swap, replace lowercased headers with title cased ones.\n signedRequest.headers.Authorization = signedRequest.headers.authorization;\n signedRequest.headers['X-Amz-Security-Token'] =\n signedRequest.headers['x-amz-security-token'];\n delete signedRequest.headers.authorization;\n delete signedRequest.headers['x-amz-security-token'];\n return signedRequest;\n };\n Signer.signUrl = function (urlOrRequest, accessInfo, serviceInfo, expiration) {\n var urlToSign = typeof urlOrRequest === 'object' ? urlOrRequest.url : urlOrRequest;\n var method = typeof urlOrRequest === 'object' ? urlOrRequest.method : 'GET';\n var body = typeof urlOrRequest === 'object' ? urlOrRequest.body : undefined;\n var presignable = {\n body: body,\n method: method,\n url: new URL(urlToSign),\n };\n var options = getOptions(presignable, accessInfo, serviceInfo, expiration);\n var signedUrl = presignUrl(presignable, options);\n if (accessInfo.session_token &&\n !sessionTokenRequiredInSigning(options.signingService)) {\n signedUrl.searchParams.append(TOKEN_QUERY_PARAM, accessInfo.session_token);\n }\n return signedUrl.toString();\n };\n return Signer;\n}());\nexport { Signer };\nvar getOptions = function (request, accessInfo, serviceInfo, expiration) {\n var _a = accessInfo !== null && accessInfo !== void 0 ? accessInfo : {}, access_key = _a.access_key, secret_key = _a.secret_key, session_token = _a.session_token;\n var _b = parseServiceInfo(request.url), urlRegion = _b.region, urlService = _b.service;\n var _c = serviceInfo !== null && serviceInfo !== void 0 ? serviceInfo : {}, _d = _c.region, region = _d === void 0 ? urlRegion : _d, _e = _c.service, service = _e === void 0 ? urlService : _e;\n var credentials = __assign({ accessKeyId: access_key, secretAccessKey: secret_key }, (sessionTokenRequiredInSigning(service)\n ? { sessionToken: session_token }\n : {}));\n return __assign({ credentials: credentials, signingDate: DateUtils.getDateWithClockOffset(), signingRegion: region, signingService: service }, (expiration && { expiration: expiration }));\n};\n// TODO: V6 investigate whether add to custom clients' general signer implementation.\nvar parseServiceInfo = function (url) {\n var _a;\n var host = url.host;\n var matched = (_a = host.match(AWS_ENDPOINT_REGEX)) !== null && _a !== void 0 ? _a : [];\n var parsed = matched.slice(1, 3);\n if (parsed[1] === 'es') {\n // Elastic Search\n parsed = parsed.reverse();\n }\n return {\n service: parsed[0],\n region: parsed[1],\n };\n};\n// IoT service does not allow the session token in the canonical request\n// https://docs.aws.amazon.com/general/latest/gr/sigv4-add-signature-to-request.html\n// TODO: V6 investigate whether add to custom clients' general signer implementation.\nvar sessionTokenRequiredInSigning = function (service) {\n return service !== IOT_SERVICE_NAME;\n};\n","/*! *****************************************************************************\r\nCopyright (c) Microsoft Corporation.\r\n\r\nPermission to use, copy, modify, and/or distribute this software for any\r\npurpose with or without fee is hereby granted.\r\n\r\nTHE SOFTWARE IS PROVIDED \"AS IS\" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH\r\nREGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY\r\nAND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,\r\nINDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM\r\nLOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR\r\nOTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR\r\nPERFORMANCE OF THIS SOFTWARE.\r\n***************************************************************************** */\r\n/* global Reflect, Promise */\r\n\r\nvar extendStatics = function(d, b) {\r\n extendStatics = Object.setPrototypeOf ||\r\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\r\n function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\r\n return extendStatics(d, b);\r\n};\r\n\r\nexport function __extends(d, b) {\r\n extendStatics(d, b);\r\n function __() { this.constructor = d; }\r\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\r\n}\r\n\r\nexport var __assign = function() {\r\n __assign = Object.assign || function __assign(t) {\r\n for (var s, i = 1, n = arguments.length; i < n; i++) {\r\n s = arguments[i];\r\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p)) t[p] = s[p];\r\n }\r\n return t;\r\n }\r\n return __assign.apply(this, arguments);\r\n}\r\n\r\nexport function __rest(s, e) {\r\n var t = {};\r\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)\r\n t[p] = s[p];\r\n if (s != null && typeof Object.getOwnPropertySymbols === \"function\")\r\n for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {\r\n if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))\r\n t[p[i]] = s[p[i]];\r\n }\r\n return t;\r\n}\r\n\r\nexport function __decorate(decorators, target, key, desc) {\r\n var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;\r\n if (typeof Reflect === \"object\" && typeof Reflect.decorate === \"function\") r = Reflect.decorate(decorators, target, key, desc);\r\n else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;\r\n return c > 3 && r && Object.defineProperty(target, key, r), r;\r\n}\r\n\r\nexport function __param(paramIndex, decorator) {\r\n return function (target, key) { decorator(target, key, paramIndex); }\r\n}\r\n\r\nexport function __metadata(metadataKey, metadataValue) {\r\n if (typeof Reflect === \"object\" && typeof Reflect.metadata === \"function\") return Reflect.metadata(metadataKey, metadataValue);\r\n}\r\n\r\nexport function __awaiter(thisArg, _arguments, P, generator) {\r\n function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }\r\n return new (P || (P = Promise))(function (resolve, reject) {\r\n function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\r\n function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\r\n function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }\r\n step((generator = generator.apply(thisArg, _arguments || [])).next());\r\n });\r\n}\r\n\r\nexport function __generator(thisArg, body) {\r\n var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;\r\n return g = { next: verb(0), \"throw\": verb(1), \"return\": verb(2) }, typeof Symbol === \"function\" && (g[Symbol.iterator] = function() { return this; }), g;\r\n function verb(n) { return function (v) { return step([n, v]); }; }\r\n function step(op) {\r\n if (f) throw new TypeError(\"Generator is already executing.\");\r\n while (_) try {\r\n if (f = 1, y && (t = op[0] & 2 ? y[\"return\"] : op[0] ? y[\"throw\"] || ((t = y[\"return\"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;\r\n if (y = 0, t) op = [op[0] & 2, t.value];\r\n switch (op[0]) {\r\n case 0: case 1: t = op; break;\r\n case 4: _.label++; return { value: op[1], done: false };\r\n case 5: _.label++; y = op[1]; op = [0]; continue;\r\n case 7: op = _.ops.pop(); _.trys.pop(); continue;\r\n default:\r\n if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }\r\n if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }\r\n if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }\r\n if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }\r\n if (t[2]) _.ops.pop();\r\n _.trys.pop(); continue;\r\n }\r\n op = body.call(thisArg, _);\r\n } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }\r\n if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };\r\n }\r\n}\r\n\r\nexport function __createBinding(o, m, k, k2) {\r\n if (k2 === undefined) k2 = k;\r\n o[k2] = m[k];\r\n}\r\n\r\nexport function __exportStar(m, exports) {\r\n for (var p in m) if (p !== \"default\" && !exports.hasOwnProperty(p)) exports[p] = m[p];\r\n}\r\n\r\nexport function __values(o) {\r\n var s = typeof Symbol === \"function\" && Symbol.iterator, m = s && o[s], i = 0;\r\n if (m) return m.call(o);\r\n if (o && typeof o.length === \"number\") return {\r\n next: function () {\r\n if (o && i >= o.length) o = void 0;\r\n return { value: o && o[i++], done: !o };\r\n }\r\n };\r\n throw new TypeError(s ? \"Object is not iterable.\" : \"Symbol.iterator is not defined.\");\r\n}\r\n\r\nexport function __read(o, n) {\r\n var m = typeof Symbol === \"function\" && o[Symbol.iterator];\r\n if (!m) return o;\r\n var i = m.call(o), r, ar = [], e;\r\n try {\r\n while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);\r\n }\r\n catch (error) { e = { error: error }; }\r\n finally {\r\n try {\r\n if (r && !r.done && (m = i[\"return\"])) m.call(i);\r\n }\r\n finally { if (e) throw e.error; }\r\n }\r\n return ar;\r\n}\r\n\r\nexport function __spread() {\r\n for (var ar = [], i = 0; i < arguments.length; i++)\r\n ar = ar.concat(__read(arguments[i]));\r\n return ar;\r\n}\r\n\r\nexport function __spreadArrays() {\r\n for (var s = 0, i = 0, il = arguments.length; i < il; i++) s += arguments[i].length;\r\n for (var r = Array(s), k = 0, i = 0; i < il; i++)\r\n for (var a = arguments[i], j = 0, jl = a.length; j < jl; j++, k++)\r\n r[k] = a[j];\r\n return r;\r\n};\r\n\r\nexport function __await(v) {\r\n return this instanceof __await ? (this.v = v, this) : new __await(v);\r\n}\r\n\r\nexport function __asyncGenerator(thisArg, _arguments, generator) {\r\n if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n var g = generator.apply(thisArg, _arguments || []), i, q = [];\r\n return i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i;\r\n function verb(n) { if (g[n]) i[n] = function (v) { return new Promise(function (a, b) { q.push([n, v, a, b]) > 1 || resume(n, v); }); }; }\r\n function resume(n, v) { try { step(g[n](v)); } catch (e) { settle(q[0][3], e); } }\r\n function step(r) { r.value instanceof __await ? Promise.resolve(r.value.v).then(fulfill, reject) : settle(q[0][2], r); }\r\n function fulfill(value) { resume(\"next\", value); }\r\n function reject(value) { resume(\"throw\", value); }\r\n function settle(f, v) { if (f(v), q.shift(), q.length) resume(q[0][0], q[0][1]); }\r\n}\r\n\r\nexport function __asyncDelegator(o) {\r\n var i, p;\r\n return i = {}, verb(\"next\"), verb(\"throw\", function (e) { throw e; }), verb(\"return\"), i[Symbol.iterator] = function () { return this; }, i;\r\n function verb(n, f) { i[n] = o[n] ? function (v) { return (p = !p) ? { value: __await(o[n](v)), done: n === \"return\" } : f ? f(v) : v; } : f; }\r\n}\r\n\r\nexport function __asyncValues(o) {\r\n if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n var m = o[Symbol.asyncIterator], i;\r\n return m ? m.call(o) : (o = typeof __values === \"function\" ? __values(o) : o[Symbol.iterator](), i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i);\r\n function verb(n) { i[n] = o[n] && function (v) { return new Promise(function (resolve, reject) { v = o[n](v), settle(resolve, reject, v.done, v.value); }); }; }\r\n function settle(resolve, reject, d, v) { Promise.resolve(v).then(function(v) { resolve({ value: v, done: d }); }, reject); }\r\n}\r\n\r\nexport function __makeTemplateObject(cooked, raw) {\r\n if (Object.defineProperty) { Object.defineProperty(cooked, \"raw\", { value: raw }); } else { cooked.raw = raw; }\r\n return cooked;\r\n};\r\n\r\nexport function __importStar(mod) {\r\n if (mod && mod.__esModule) return mod;\r\n var result = {};\r\n if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];\r\n result.default = mod;\r\n return result;\r\n}\r\n\r\nexport function __importDefault(mod) {\r\n return (mod && mod.__esModule) ? mod : { default: mod };\r\n}\r\n\r\nexport function __classPrivateFieldGet(receiver, privateMap) {\r\n if (!privateMap.has(receiver)) {\r\n throw new TypeError(\"attempted to get private field on non-instance\");\r\n }\r\n return privateMap.get(receiver);\r\n}\r\n\r\nexport function __classPrivateFieldSet(receiver, privateMap, value) {\r\n if (!privateMap.has(receiver)) {\r\n throw new TypeError(\"attempted to set private field on non-instance\");\r\n }\r\n privateMap.set(receiver, value);\r\n return value;\r\n}\r\n","// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.\r\n// SPDX-License-Identifier: Apache-2.0\r\n\r\nimport { CacheConfig, CacheItem, CacheItemOptions } from '../types';\r\nimport { StorageHelper } from '@aws-amplify/core';\r\n/**\r\n * Default cache config\r\n */\r\nexport const defaultConfig: CacheConfig = {\r\n\tkeyPrefix: 'aws-amplify-cache',\r\n\tcapacityInBytes: 1048576, // 1MB\r\n\titemMaxSize: 210000, // about 200kb\r\n\tdefaultTTL: 259200000, // about 3 days\r\n\tdefaultPriority: 5,\r\n\twarningThreshold: 0.8,\r\n\t// the storage helper will check if localStorage exists,\r\n\t// if not, will use a in-memory object instead\r\n\tstorage: new StorageHelper().getStorage(),\r\n};\r\n\r\n/**\r\n * return the byte size of the string\r\n * @param str\r\n */\r\nexport function getByteLength(str: string): number {\r\n\tlet ret: number = 0;\r\n\tret = str.length;\r\n\r\n\tfor (let i = str.length; i >= 0; i -= 1) {\r\n\t\tconst charCode: number = str.charCodeAt(i);\r\n\t\tif (charCode > 0x7f && charCode <= 0x7ff) {\r\n\t\t\tret += 1;\r\n\t\t} else if (charCode > 0x7ff && charCode <= 0xffff) {\r\n\t\t\tret += 2;\r\n\t\t}\r\n\t\t// trail surrogate\r\n\t\tif (charCode >= 0xdc00 && charCode <= 0xdfff) {\r\n\t\t\ti -= 1;\r\n\t\t}\r\n\t}\r\n\r\n\treturn ret;\r\n}\r\n\r\n/**\r\n * get current time\r\n */\r\nexport function getCurrTime(): number {\r\n\tconst currTime = new Date();\r\n\treturn currTime.getTime();\r\n}\r\n\r\n/**\r\n * check if passed value is an integer\r\n */\r\nexport function isInteger(value): boolean {\r\n\tif (Number.isInteger) {\r\n\t\treturn Number.isInteger(value);\r\n\t}\r\n\r\n\treturn _isInteger(value);\r\n}\r\n\r\nfunction _isInteger(value): boolean {\r\n\treturn (\r\n\t\ttypeof value === 'number' && isFinite(value) && Math.floor(value) === value\r\n\t);\r\n}\r\n\r\n/**\r\n * provide an object as the in-memory cache\r\n */\r\nlet store = {};\r\nexport class CacheObject {\r\n\tstatic clear(): void {\r\n\t\tstore = {};\r\n\t}\r\n\r\n\tstatic getItem(key: string): string | null {\r\n\t\treturn store[key] || null;\r\n\t}\r\n\r\n\tstatic setItem(key: string, value: string): void {\r\n\t\tstore[key] = value;\r\n\t}\r\n\r\n\tstatic removeItem(key: string): void {\r\n\t\tdelete store[key];\r\n\t}\r\n}\r\n","// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.\r\n// SPDX-License-Identifier: Apache-2.0\r\n\r\nimport { getCurrTime, getByteLength, defaultConfig, isInteger } from './Utils';\r\n\r\nimport { CacheConfig, CacheItem, CacheItemOptions } from './types';\r\nimport { ConsoleLogger as Logger } from '@aws-amplify/core';\r\n\r\nconst logger = new Logger('StorageCache');\r\n\r\n/**\r\n * Initialization of the cache\r\n *\r\n */\r\nexport class StorageCache {\r\n\tprotected cacheCurSizeKey: string;\r\n\tprotected config: CacheConfig;\r\n\r\n\t/**\r\n\t * Initialize the cache\r\n\t * @param config - the configuration of the cache\r\n\t */\r\n\tconstructor(config: CacheConfig) {\r\n\t\tthis.config = Object.assign({}, config);\r\n\t\tthis.cacheCurSizeKey = this.config.keyPrefix + 'CurSize';\r\n\t\tthis.checkConfig();\r\n\t}\r\n\r\n\tpublic getModuleName() {\r\n\t\treturn 'Cache';\r\n\t}\r\n\r\n\tprivate checkConfig(): void {\r\n\t\t// check configuration\r\n\t\tif (!isInteger(this.config.capacityInBytes)) {\r\n\t\t\tlogger.error(\r\n\t\t\t\t'Invalid parameter: capacityInBytes. It should be an Integer. Setting back to default.'\r\n\t\t\t);\r\n\t\t\tthis.config.capacityInBytes = defaultConfig.capacityInBytes;\r\n\t\t}\r\n\r\n\t\tif (!isInteger(this.config.itemMaxSize)) {\r\n\t\t\tlogger.error(\r\n\t\t\t\t'Invalid parameter: itemMaxSize. It should be an Integer. Setting back to default.'\r\n\t\t\t);\r\n\t\t\tthis.config.itemMaxSize = defaultConfig.itemMaxSize;\r\n\t\t}\r\n\r\n\t\tif (!isInteger(this.config.defaultTTL)) {\r\n\t\t\tlogger.error(\r\n\t\t\t\t'Invalid parameter: defaultTTL. It should be an Integer. Setting back to default.'\r\n\t\t\t);\r\n\t\t\tthis.config.defaultTTL = defaultConfig.defaultTTL;\r\n\t\t}\r\n\r\n\t\tif (!isInteger(this.config.defaultPriority)) {\r\n\t\t\tlogger.error(\r\n\t\t\t\t'Invalid parameter: defaultPriority. It should be an Integer. Setting back to default.'\r\n\t\t\t);\r\n\t\t\tthis.config.defaultPriority = defaultConfig.defaultPriority;\r\n\t\t}\r\n\r\n\t\tif (this.config.itemMaxSize > this.config.capacityInBytes) {\r\n\t\t\tlogger.error(\r\n\t\t\t\t'Invalid parameter: itemMaxSize. It should be smaller than capacityInBytes. Setting back to default.'\r\n\t\t\t);\r\n\t\t\tthis.config.itemMaxSize = defaultConfig.itemMaxSize;\r\n\t\t}\r\n\r\n\t\tif (this.config.defaultPriority > 5 || this.config.defaultPriority < 1) {\r\n\t\t\tlogger.error(\r\n\t\t\t\t'Invalid parameter: defaultPriority. It should be between 1 and 5. Setting back to default.'\r\n\t\t\t);\r\n\t\t\tthis.config.defaultPriority = defaultConfig.defaultPriority;\r\n\t\t}\r\n\r\n\t\tif (\r\n\t\t\tNumber(this.config.warningThreshold) > 1 ||\r\n\t\t\tNumber(this.config.warningThreshold) < 0\r\n\t\t) {\r\n\t\t\tlogger.error(\r\n\t\t\t\t'Invalid parameter: warningThreshold. It should be between 0 and 1. Setting back to default.'\r\n\t\t\t);\r\n\t\t\tthis.config.warningThreshold = defaultConfig.warningThreshold;\r\n\t\t}\r\n\t\t// set 5MB limit\r\n\t\tconst cacheLimit: number = 5 * 1024 * 1024;\r\n\t\tif (this.config.capacityInBytes > cacheLimit) {\r\n\t\t\tlogger.error(\r\n\t\t\t\t'Cache Capacity should be less than 5MB. Setting back to default. Setting back to default.'\r\n\t\t\t);\r\n\t\t\tthis.config.capacityInBytes = defaultConfig.capacityInBytes;\r\n\t\t}\r\n\t}\r\n\r\n\t/**\r\n\t * produce a JSON object with meta-data and data value\r\n\t * @param value - the value of the item\r\n\t * @param options - optional, the specified meta-data\r\n\t *\r\n\t * @return - the item which has the meta-data and the value\r\n\t */\r\n\tprotected fillCacheItem(\r\n\t\tkey: string,\r\n\t\tvalue: object | number | string | boolean,\r\n\t\toptions: CacheItemOptions\r\n\t): CacheItem {\r\n\t\tconst ret: CacheItem = {\r\n\t\t\tkey,\r\n\t\t\tdata: value,\r\n\t\t\ttimestamp: getCurrTime(),\r\n\t\t\tvisitedTime: getCurrTime(),\r\n\t\t\tpriority: options.priority,\r\n\t\t\texpires: options.expires,\r\n\t\t\ttype: typeof value,\r\n\t\t\tbyteSize: 0,\r\n\t\t};\r\n\r\n\t\tret.byteSize = getByteLength(JSON.stringify(ret));\r\n\r\n\t\t// for accurate size\r\n\t\tret.byteSize = getByteLength(JSON.stringify(ret));\r\n\t\treturn ret;\r\n\t}\r\n\r\n\t/**\r\n\t * set cache with customized configuration\r\n\t * @param config - customized configuration\r\n\t *\r\n\t * @return - the current configuration\r\n\t */\r\n\tpublic configure(config?: CacheConfig): CacheConfig {\r\n\t\tif (!config) {\r\n\t\t\treturn this.config;\r\n\t\t}\r\n\t\tif (config.keyPrefix) {\r\n\t\t\tlogger.warn(`Don't try to configure keyPrefix!`);\r\n\t\t}\r\n\r\n\t\tthis.config = Object.assign({}, this.config, config, config.Cache);\r\n\t\tthis.checkConfig();\r\n\t\treturn this.config;\r\n\t}\r\n}\r\n","// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.\r\n// SPDX-License-Identifier: Apache-2.0\r\n\r\nimport { Amplify, ConsoleLogger as Logger } from '@aws-amplify/core';\r\nimport { defaultConfig, getCurrTime } from './Utils';\r\nimport { StorageCache } from './StorageCache';\r\nimport { ICache, CacheConfig, CacheItem, CacheItemOptions } from './types';\r\n\r\nconst logger = new Logger('Cache');\r\n\r\n/**\r\n * Customized storage based on the SessionStorage or LocalStorage with LRU implemented\r\n */\r\nexport class BrowserStorageCacheClass extends StorageCache implements ICache {\r\n\t/**\r\n\t * initialize the cache\r\n\t * @param config - the configuration of the cache\r\n\t */\r\n\tconstructor(config?: CacheConfig) {\r\n\t\tconst cacheConfig = config\r\n\t\t\t? Object.assign({}, defaultConfig, config)\r\n\t\t\t: defaultConfig;\r\n\t\tsuper(cacheConfig);\r\n\t\tthis.config.storage = cacheConfig.storage;\r\n\t\tthis.getItem = this.getItem.bind(this);\r\n\t\tthis.setItem = this.setItem.bind(this);\r\n\t\tthis.removeItem = this.removeItem.bind(this);\r\n\t}\r\n\r\n\t/**\r\n\t * decrease current size of the cache\r\n\t *\r\n\t * @private\r\n\t * @param amount - the amount of the cache size which needs to be decreased\r\n\t */\r\n\tprivate _decreaseCurSizeInBytes(amount: number): void {\r\n\t\tconst curSize: number = this.getCacheCurSize();\r\n\t\tthis.config.storage.setItem(\r\n\t\t\tthis.cacheCurSizeKey,\r\n\t\t\t(curSize - amount).toString()\r\n\t\t);\r\n\t}\r\n\r\n\t/**\r\n\t * increase current size of the cache\r\n\t *\r\n\t * @private\r\n\t * @param amount - the amount of the cache szie which need to be increased\r\n\t */\r\n\tprivate _increaseCurSizeInBytes(amount: number): void {\r\n\t\tconst curSize: number = this.getCacheCurSize();\r\n\t\tthis.config.storage.setItem(\r\n\t\t\tthis.cacheCurSizeKey,\r\n\t\t\t(curSize + amount).toString()\r\n\t\t);\r\n\t}\r\n\r\n\t/**\r\n\t * update the visited time if item has been visited\r\n\t *\r\n\t * @private\r\n\t * @param item - the item which need to be refreshed\r\n\t * @param prefixedKey - the key of the item\r\n\t *\r\n\t * @return the refreshed item\r\n\t */\r\n\tprivate _refreshItem(item: CacheItem, prefixedKey: string): CacheItem {\r\n\t\titem.visitedTime = getCurrTime();\r\n\t\tthis.config.storage.setItem(prefixedKey, JSON.stringify(item));\r\n\t\treturn item;\r\n\t}\r\n\r\n\t/**\r\n\t * check wether item is expired\r\n\t *\r\n\t * @private\r\n\t * @param key - the key of the item\r\n\t *\r\n\t * @return true if the item is expired.\r\n\t */\r\n\tprivate _isExpired(key: string): boolean {\r\n\t\tconst text: string | null = this.config.storage.getItem(key);\r\n\t\tconst item: CacheItem = JSON.parse(text);\r\n\t\tif (getCurrTime() >= item.expires) {\r\n\t\t\treturn true;\r\n\t\t}\r\n\t\treturn false;\r\n\t}\r\n\r\n\t/**\r\n\t * delete item from cache\r\n\t *\r\n\t * @private\r\n\t * @param prefixedKey - the key of the item\r\n\t * @param size - optional, the byte size of the item\r\n\t */\r\n\tprivate _removeItem(prefixedKey: string, size?: number): void {\r\n\t\tconst itemSize: number = size\r\n\t\t\t? size\r\n\t\t\t: JSON.parse(this.config.storage.getItem(prefixedKey)).byteSize;\r\n\t\tthis._decreaseCurSizeInBytes(itemSize);\r\n\t\t// remove the cache item\r\n\t\tthis.config.storage.removeItem(prefixedKey);\r\n\t}\r\n\r\n\t/**\r\n\t * put item into cache\r\n\t *\r\n\t * @private\r\n\t * @param prefixedKey - the key of the item\r\n\t * @param itemData - the value of the item\r\n\t * @param itemSizeInBytes - the byte size of the item\r\n\t */\r\n\tprivate _setItem(prefixedKey: string, item: CacheItem): void {\r\n\t\t// update the cache size\r\n\t\tthis._increaseCurSizeInBytes(item.byteSize);\r\n\r\n\t\ttry {\r\n\t\t\tthis.config.storage.setItem(prefixedKey, JSON.stringify(item));\r\n\t\t} catch (setItemErr) {\r\n\t\t\t// if failed, we need to rollback the cache size\r\n\t\t\tthis._decreaseCurSizeInBytes(item.byteSize);\r\n\t\t\tlogger.error(`Failed to set item ${setItemErr}`);\r\n\t\t}\r\n\t}\r\n\r\n\t/**\r\n\t * total space needed when poping out items\r\n\t *\r\n\t * @private\r\n\t * @param itemSize\r\n\t *\r\n\t * @return total space needed\r\n\t */\r\n\tprivate _sizeToPop(itemSize: number): number {\r\n\t\tconst spaceItemNeed =\r\n\t\t\tthis.getCacheCurSize() + itemSize - this.config.capacityInBytes;\r\n\t\tconst cacheThresholdSpace =\r\n\t\t\t(1 - this.config.warningThreshold) * this.config.capacityInBytes;\r\n\t\treturn spaceItemNeed > cacheThresholdSpace\r\n\t\t\t? spaceItemNeed\r\n\t\t\t: cacheThresholdSpace;\r\n\t}\r\n\r\n\t/**\r\n\t * see whether cache is full\r\n\t *\r\n\t * @private\r\n\t * @param itemSize\r\n\t *\r\n\t * @return true if cache is full\r\n\t */\r\n\tprivate _isCacheFull(itemSize: number): boolean {\r\n\t\treturn itemSize + this.getCacheCurSize() > this.config.capacityInBytes;\r\n\t}\r\n\r\n\t/**\r\n\t * scan the storage and find out all the keys owned by this cache\r\n\t * also clean the expired keys while scanning\r\n\t *\r\n\t * @private\r\n\t *\r\n\t * @return array of keys\r\n\t */\r\n\tprivate _findValidKeys(): string[] {\r\n\t\tconst keys: string[] = [];\r\n\t\tconst keyInCache: string[] = [];\r\n\t\t// get all keys in Storage\r\n\t\tfor (let i = 0; i < this.config.storage.length; i += 1) {\r\n\t\t\tkeyInCache.push(this.config.storage.key(i));\r\n\t\t}\r\n\r\n\t\t// find those items which belong to our cache and also clean those expired items\r\n\t\tfor (let i = 0; i < keyInCache.length; i += 1) {\r\n\t\t\tconst key: string = keyInCache[i];\r\n\t\t\tif (\r\n\t\t\t\tkey.indexOf(this.config.keyPrefix) === 0 &&\r\n\t\t\t\tkey !== this.cacheCurSizeKey\r\n\t\t\t) {\r\n\t\t\t\tif (this._isExpired(key)) {\r\n\t\t\t\t\tthis._removeItem(key);\r\n\t\t\t\t} else {\r\n\t\t\t\t\tkeys.push(key);\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t}\r\n\t\treturn keys;\r\n\t}\r\n\r\n\t/**\r\n\t * get all the items we have, sort them by their priority,\r\n\t * if priority is same, sort them by their last visited time\r\n\t * pop out items from the low priority (5 is the lowest)\r\n\t *\r\n\t * @private\r\n\t * @param keys - all the keys in this cache\r\n\t * @param sizeToPop - the total size of the items which needed to be poped out\r\n\t */\r\n\tprivate _popOutItems(keys: string[], sizeToPop: number): void {\r\n\t\tconst items: CacheItem[] = [];\r\n\t\tlet remainedSize: number = sizeToPop;\r\n\t\t// get the items from Storage\r\n\t\tfor (let i = 0; i < keys.length; i += 1) {\r\n\t\t\tconst val: string | null = this.config.storage.getItem(keys[i]);\r\n\t\t\tif (val != null) {\r\n\t\t\t\tconst item: CacheItem = JSON.parse(val);\r\n\t\t\t\titems.push(item);\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\t// first compare priority\r\n\t\t// then compare visited time\r\n\t\titems.sort((a, b) => {\r\n\t\t\tif (a.priority > b.priority) {\r\n\t\t\t\treturn -1;\r\n\t\t\t} else if (a.priority < b.priority) {\r\n\t\t\t\treturn 1;\r\n\t\t\t} else {\r\n\t\t\t\tif (a.visitedTime < b.visitedTime) {\r\n\t\t\t\t\treturn -1;\r\n\t\t\t\t} else return 1;\r\n\t\t\t}\r\n\t\t});\r\n\r\n\t\tfor (let i = 0; i < items.length; i += 1) {\r\n\t\t\t// pop out items until we have enough room for new item\r\n\t\t\tthis._removeItem(items[i].key, items[i].byteSize);\r\n\t\t\tremainedSize -= items[i].byteSize;\r\n\t\t\tif (remainedSize <= 0) {\r\n\t\t\t\treturn;\r\n\t\t\t}\r\n\t\t}\r\n\t}\r\n\r\n\t/**\r\n\t * Set item into cache. You can put number, string, boolean or object.\r\n\t * The cache will first check whether has the same key.\r\n\t * If it has, it will delete the old item and then put the new item in\r\n\t * The cache will pop out items if it is full\r\n\t * You can specify the cache item options. The cache will abort and output a warning:\r\n\t * If the key is invalid\r\n\t * If the size of the item exceeds itemMaxSize.\r\n\t * If the value is undefined\r\n\t * If incorrect cache item configuration\r\n\t * If error happened with browser storage\r\n\t *\r\n\t * @param key - the key of the item\r\n\t * @param value - the value of the item\r\n\t * @param {Object} [options] - optional, the specified meta-data\r\n\t */\r\n\tpublic setItem(\r\n\t\tkey: string,\r\n\t\tvalue: object | number | string | boolean,\r\n\t\toptions?: CacheItemOptions\r\n\t): void {\r\n\t\tlogger.log(\r\n\t\t\t`Set item: key is ${key}, value is ${value} with options: ${options}`\r\n\t\t);\r\n\t\tconst prefixedKey: string = this.config.keyPrefix + key;\r\n\t\t// invalid keys\r\n\t\tif (\r\n\t\t\tprefixedKey === this.config.keyPrefix ||\r\n\t\t\tprefixedKey === this.cacheCurSizeKey\r\n\t\t) {\r\n\t\t\tlogger.warn(`Invalid key: should not be empty or 'CurSize'`);\r\n\t\t\treturn;\r\n\t\t}\r\n\r\n\t\tif (typeof value === 'undefined') {\r\n\t\t\tlogger.warn(`The value of item should not be undefined!`);\r\n\t\t\treturn;\r\n\t\t}\r\n\r\n\t\tconst cacheItemOptions: CacheItemOptions = {\r\n\t\t\tpriority:\r\n\t\t\t\toptions && options.priority !== undefined\r\n\t\t\t\t\t? options.priority\r\n\t\t\t\t\t: this.config.defaultPriority,\r\n\t\t\texpires:\r\n\t\t\t\toptions && options.expires !== undefined\r\n\t\t\t\t\t? options.expires\r\n\t\t\t\t\t: this.config.defaultTTL + getCurrTime(),\r\n\t\t};\r\n\r\n\t\tif (cacheItemOptions.priority < 1 || cacheItemOptions.priority > 5) {\r\n\t\t\tlogger.warn(\r\n\t\t\t\t`Invalid parameter: priority due to out or range. It should be within 1 and 5.`\r\n\t\t\t);\r\n\t\t\treturn;\r\n\t\t}\r\n\r\n\t\tconst item: CacheItem = this.fillCacheItem(\r\n\t\t\tprefixedKey,\r\n\t\t\tvalue,\r\n\t\t\tcacheItemOptions\r\n\t\t);\r\n\r\n\t\t// check wether this item is too big;\r\n\t\tif (item.byteSize > this.config.itemMaxSize) {\r\n\t\t\tlogger.warn(\r\n\t\t\t\t`Item with key: ${key} you are trying to put into is too big!`\r\n\t\t\t);\r\n\t\t\treturn;\r\n\t\t}\r\n\r\n\t\ttry {\r\n\t\t\t// first look into the storage, if it exists, delete it.\r\n\t\t\tconst val: string | null = this.config.storage.getItem(prefixedKey);\r\n\t\t\tif (val) {\r\n\t\t\t\tthis._removeItem(prefixedKey, JSON.parse(val).byteSize);\r\n\t\t\t}\r\n\r\n\t\t\t// check whether the cache is full\r\n\t\t\tif (this._isCacheFull(item.byteSize)) {\r\n\t\t\t\tconst validKeys: string[] = this._findValidKeys();\r\n\t\t\t\t// check again and then pop out items\r\n\t\t\t\tif (this._isCacheFull(item.byteSize)) {\r\n\t\t\t\t\tconst sizeToPop: number = this._sizeToPop(item.byteSize);\r\n\t\t\t\t\tthis._popOutItems(validKeys, sizeToPop);\r\n\t\t\t\t}\r\n\t\t\t}\r\n\r\n\t\t\t// put item in the cache\r\n\t\t\t// may failed due to storage full\r\n\t\t\tthis._setItem(prefixedKey, item);\r\n\t\t} catch (e) {\r\n\t\t\tlogger.warn(`setItem failed! ${e}`);\r\n\t\t}\r\n\t}\r\n\r\n\t/**\r\n\t * Get item from cache. It will return null if item doesn’t exist or it has been expired.\r\n\t * If you specified callback function in the options,\r\n\t * then the function will be executed if no such item in the cache\r\n\t * and finally put the return value into cache.\r\n\t * Please make sure the callback function will return the value you want to put into the cache.\r\n\t * The cache will abort output a warning:\r\n\t * If the key is invalid\r\n\t * If error happened with browser storage\r\n\t *\r\n\t * @param key - the key of the item\r\n\t * @param {Object} [options] - the options of callback function\r\n\t *\r\n\t * @return - return the value of the item\r\n\t */\r\n\tpublic getItem(key: string, options?: CacheItemOptions): any {\r\n\t\tlogger.log(`Get item: key is ${key} with options ${options}`);\r\n\t\tlet ret: string | null = null;\r\n\t\tconst prefixedKey: string = this.config.keyPrefix + key;\r\n\r\n\t\tif (\r\n\t\t\tprefixedKey === this.config.keyPrefix ||\r\n\t\t\tprefixedKey === this.cacheCurSizeKey\r\n\t\t) {\r\n\t\t\tlogger.warn(`Invalid key: should not be empty or 'CurSize'`);\r\n\t\t\treturn null;\r\n\t\t}\r\n\r\n\t\ttry {\r\n\t\t\tret = this.config.storage.getItem(prefixedKey);\r\n\t\t\tif (ret != null) {\r\n\t\t\t\tif (this._isExpired(prefixedKey)) {\r\n\t\t\t\t\t// if expired, remove that item and return null\r\n\t\t\t\t\tthis._removeItem(prefixedKey, JSON.parse(ret).byteSize);\r\n\t\t\t\t\tret = null;\r\n\t\t\t\t} else {\r\n\t\t\t\t\t// if not expired, great, return the value and refresh it\r\n\t\t\t\t\tlet item: CacheItem = JSON.parse(ret);\r\n\t\t\t\t\titem = this._refreshItem(item, prefixedKey);\r\n\t\t\t\t\treturn item.data;\r\n\t\t\t\t}\r\n\t\t\t}\r\n\r\n\t\t\tif (options && options.callback !== undefined) {\r\n\t\t\t\tconst val: object | string | number | boolean = options.callback();\r\n\t\t\t\tif (val !== null) {\r\n\t\t\t\t\tthis.setItem(key, val, options);\r\n\t\t\t\t}\r\n\t\t\t\treturn val;\r\n\t\t\t}\r\n\t\t\treturn null;\r\n\t\t} catch (e) {\r\n\t\t\tlogger.warn(`getItem failed! ${e}`);\r\n\t\t\treturn null;\r\n\t\t}\r\n\t}\r\n\r\n\t/**\r\n\t * remove item from the cache\r\n\t * The cache will abort output a warning:\r\n\t * If error happened with browser storage\r\n\t * @param key - the key of the item\r\n\t */\r\n\tpublic removeItem(key: string): void {\r\n\t\tlogger.log(`Remove item: key is ${key}`);\r\n\t\tconst prefixedKey: string = this.config.keyPrefix + key;\r\n\r\n\t\tif (\r\n\t\t\tprefixedKey === this.config.keyPrefix ||\r\n\t\t\tprefixedKey === this.cacheCurSizeKey\r\n\t\t) {\r\n\t\t\treturn;\r\n\t\t}\r\n\r\n\t\ttry {\r\n\t\t\tconst val: string | null = this.config.storage.getItem(prefixedKey);\r\n\t\t\tif (val) {\r\n\t\t\t\tthis._removeItem(prefixedKey, JSON.parse(val).byteSize);\r\n\t\t\t}\r\n\t\t} catch (e) {\r\n\t\t\tlogger.warn(`removeItem failed! ${e}`);\r\n\t\t}\r\n\t}\r\n\r\n\t/**\r\n\t * clear the entire cache\r\n\t * The cache will abort output a warning:\r\n\t * If error happened with browser storage\r\n\t */\r\n\tpublic clear(): void {\r\n\t\tlogger.log(`Clear Cache`);\r\n\t\tconst keysToRemove: string[] = [];\r\n\r\n\t\tfor (let i = 0; i < this.config.storage.length; i += 1) {\r\n\t\t\tconst key = this.config.storage.key(i);\r\n\t\t\tif (key.indexOf(this.config.keyPrefix) === 0) {\r\n\t\t\t\tkeysToRemove.push(key);\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\ttry {\r\n\t\t\tfor (let i = 0; i < keysToRemove.length; i += 1) {\r\n\t\t\t\tthis.config.storage.removeItem(keysToRemove[i]);\r\n\t\t\t}\r\n\t\t} catch (e) {\r\n\t\t\tlogger.warn(`clear failed! ${e}`);\r\n\t\t}\r\n\t}\r\n\r\n\t/**\r\n\t * Return all the keys in the cache.\r\n\t *\r\n\t * @return - all keys in the cache\r\n\t */\r\n\tpublic getAllKeys(): string[] {\r\n\t\tconst keys: string[] = [];\r\n\t\tfor (let i = 0; i < this.config.storage.length; i += 1) {\r\n\t\t\tconst key = this.config.storage.key(i);\r\n\t\t\tif (\r\n\t\t\t\tkey.indexOf(this.config.keyPrefix) === 0 &&\r\n\t\t\t\tkey !== this.cacheCurSizeKey\r\n\t\t\t) {\r\n\t\t\t\tkeys.push(key.substring(this.config.keyPrefix.length));\r\n\t\t\t}\r\n\t\t}\r\n\t\treturn keys;\r\n\t}\r\n\r\n\t/**\r\n\t * return the current size of the cache\r\n\t *\r\n\t * @return - current size of the cache\r\n\t */\r\n\tpublic getCacheCurSize(): number {\r\n\t\tlet ret: string | null = this.config.storage.getItem(this.cacheCurSizeKey);\r\n\t\tif (!ret) {\r\n\t\t\tthis.config.storage.setItem(this.cacheCurSizeKey, '0');\r\n\t\t\tret = '0';\r\n\t\t}\r\n\t\treturn Number(ret);\r\n\t}\r\n\r\n\t/**\r\n\t * Return a new instance of cache with customized configuration.\r\n\t * @param config - the customized configuration\r\n\t *\r\n\t * @return - new instance of Cache\r\n\t */\r\n\tpublic createInstance(config: CacheConfig): ICache {\r\n\t\tif (!config.keyPrefix || config.keyPrefix === defaultConfig.keyPrefix) {\r\n\t\t\tlogger.error('invalid keyPrefix, setting keyPrefix with timeStamp');\r\n\t\t\tconfig.keyPrefix = getCurrTime.toString();\r\n\t\t}\r\n\r\n\t\treturn new BrowserStorageCacheClass(config);\r\n\t}\r\n}\r\n\r\nexport const BrowserStorageCache: ICache = new BrowserStorageCacheClass();\r\n\r\nAmplify.register(BrowserStorageCache);\r\n","// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.\n// SPDX-License-Identifier: Apache-2.0\nimport { ZenObservable } from 'zen-observable-ts';\n\nexport interface SubscriptionObserver {\n\tclosed: boolean;\n\tnext(value: T): void;\n\terror(errorValue: any): void;\n\tcomplete(): void;\n}\n\nexport enum CONTROL_MSG {\n\tCONNECTION_CLOSED = 'Connection closed',\n\tCONNECTION_FAILED = 'Connection failed',\n\tREALTIME_SUBSCRIPTION_INIT_ERROR = 'AppSync Realtime subscription init error',\n\tSUBSCRIPTION_ACK = 'Subscription ack',\n\tTIMEOUT_DISCONNECT = 'Timeout disconnect',\n}\n\n/** @enum {string} */\nexport enum ConnectionState {\n\t/*\n\t * The connection is alive and healthy\n\t */\n\tConnected = 'Connected',\n\t/*\n\t * The connection is alive, but the connection is offline\n\t */\n\tConnectedPendingNetwork = 'ConnectedPendingNetwork',\n\t/*\n\t * The connection has been disconnected while in use\n\t */\n\tConnectionDisrupted = 'ConnectionDisrupted',\n\t/*\n\t * The connection has been disconnected and the network is offline\n\t */\n\tConnectionDisruptedPendingNetwork = 'ConnectionDisruptedPendingNetwork',\n\t/*\n\t * The connection is in the process of connecting\n\t */\n\tConnecting = 'Connecting',\n\t/*\n\t * The connection is not in use and is being disconnected\n\t */\n\tConnectedPendingDisconnect = 'ConnectedPendingDisconnect',\n\t/*\n\t * The connection is not in use and has been disconnected\n\t */\n\tDisconnected = 'Disconnected',\n\t/*\n\t * The connection is alive, but a keep alive message has been missed\n\t */\n\tConnectedPendingKeepAlive = 'ConnectedPendingKeepAlive',\n}\n\nexport type PubSubContent = Record | string;\nexport type PubSubContentObserver =\n\tZenObservable.SubscriptionObserver;\n","// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.\n// SPDX-License-Identifier: Apache-2.0\nimport Observable from 'zen-observable-ts';\nimport { PubSubProvider, ProviderOptions } from '../types/Provider';\nimport {\n\tCustomUserAgentDetails,\n\tConsoleLogger as Logger,\n} from '@aws-amplify/core';\nimport { PubSubContent } from '../types/PubSub';\n\nconst logger = new Logger('AbstractPubSubProvider');\n\nexport abstract class AbstractPubSubProvider\n\timplements PubSubProvider\n{\n\tprivate _config: T;\n\n\tconstructor(options: T) {\n\t\tthis._config = options;\n\t}\n\n\tconfigure(config: T): T {\n\t\tthis._config = { ...config, ...this._config };\n\n\t\tlogger.debug(`configure ${this.getProviderName()}`, this._config);\n\n\t\treturn this.options;\n\t}\n\n\tgetCategory() {\n\t\treturn 'PubSub';\n\t}\n\n\tabstract getProviderName(): string;\n\n\tprotected get options(): T {\n\t\treturn { ...this._config };\n\t}\n\n\tpublic abstract newClient(clientOptions: T): Promise;\n\n\tpublic abstract publish(\n\t\ttopics: string[] | string,\n\t\tmsg: PubSubContent,\n\t\toptions?: T\n\t): void;\n\n\tpublic abstract subscribe(\n\t\ttopics: string[] | string,\n\t\toptions?: T,\n\t\tcustomUserAgentDetails?: CustomUserAgentDetails\n\t): Observable;\n}\n","// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.\n// SPDX-License-Identifier: Apache-2.0\nexport const MAX_DELAY_MS = 5000;\n\nexport const NON_RETRYABLE_CODES = [400, 401, 403];\n\nexport const CONNECTION_STATE_CHANGE = 'ConnectionStateChange';\n\nexport enum MESSAGE_TYPES {\n\t/**\n\t * Client -> Server message.\n\t * This message type is the first message after handshake and this will initialize AWS AppSync RealTime communication\n\t */\n\tGQL_CONNECTION_INIT = 'connection_init',\n\t/**\n\t * Server -> Client message\n\t * This message type is in case there is an issue with AWS AppSync RealTime when establishing connection\n\t */\n\tGQL_CONNECTION_ERROR = 'connection_error',\n\t/**\n\t * Server -> Client message.\n\t * This message type is for the ack response from AWS AppSync RealTime for GQL_CONNECTION_INIT message\n\t */\n\tGQL_CONNECTION_ACK = 'connection_ack',\n\t/**\n\t * Client -> Server message.\n\t * This message type is for register subscriptions with AWS AppSync RealTime\n\t */\n\tGQL_START = 'start',\n\t/**\n\t * Server -> Client message.\n\t * This message type is for the ack response from AWS AppSync RealTime for GQL_START message\n\t */\n\tGQL_START_ACK = 'start_ack',\n\t/**\n\t * Server -> Client message.\n\t * This message type is for subscription message from AWS AppSync RealTime\n\t */\n\tGQL_DATA = 'data',\n\t/**\n\t * Server -> Client message.\n\t * This message type helps the client to know is still receiving messages from AWS AppSync RealTime\n\t */\n\tGQL_CONNECTION_KEEP_ALIVE = 'ka',\n\t/**\n\t * Client -> Server message.\n\t * This message type is for unregister subscriptions with AWS AppSync RealTime\n\t */\n\tGQL_STOP = 'stop',\n\t/**\n\t * Server -> Client message.\n\t * This message type is for the ack response from AWS AppSync RealTime for GQL_STOP message\n\t */\n\tGQL_COMPLETE = 'complete',\n\t/**\n\t * Server -> Client message.\n\t * This message type is for sending error messages from AWS AppSync RealTime to the client\n\t */\n\tGQL_ERROR = 'error', // Server -> Client\n}\n\nexport enum SUBSCRIPTION_STATUS {\n\tPENDING,\n\tCONNECTED,\n\tFAILED,\n}\n\nexport enum SOCKET_STATUS {\n\tCLOSED,\n\tREADY,\n\tCONNECTING,\n}\n\nexport const AMPLIFY_SYMBOL = (\n\ttypeof Symbol !== 'undefined' && typeof Symbol.for === 'function'\n\t\t? Symbol.for('amplify_default')\n\t\t: '@@amplify_default'\n) as Symbol;\n\nexport const AWS_APPSYNC_REALTIME_HEADERS = {\n\taccept: 'application/json, text/javascript',\n\t'content-encoding': 'amz-1.0',\n\t'content-type': 'application/json; charset=UTF-8',\n};\n\n/**\n * Time in milleseconds to wait for GQL_CONNECTION_INIT message\n */\nexport const CONNECTION_INIT_TIMEOUT = 15000;\n\n/**\n * Time in milleseconds to wait for GQL_START_ACK message\n */\nexport const START_ACK_TIMEOUT = 15000;\n\n/**\n * Default Time in milleseconds to wait for GQL_CONNECTION_KEEP_ALIVE message\n */\nexport const DEFAULT_KEEP_ALIVE_TIMEOUT = 5 * 60 * 1000;\n\n/**\n * Default Time in milleseconds to alert for missed GQL_CONNECTION_KEEP_ALIVE message\n */\nexport const DEFAULT_KEEP_ALIVE_ALERT_TIMEOUT = 65 * 1000;\n\n/**\n * Default delay time in milleseconds between when reconnect is triggered vs when it is attempted\n */\nexport const RECONNECT_DELAY = 5 * 1000;\n\n/**\n * Default interval time in milleseconds between when reconnect is re-attempted\n */\nexport const RECONNECT_INTERVAL = 60 * 1000;\n","var __values = (this && this.__values) || function(o) {\n var s = typeof Symbol === \"function\" && Symbol.iterator, m = s && o[s], i = 0;\n if (m) return m.call(o);\n if (o && typeof o.length === \"number\") return {\n next: function () {\n if (o && i >= o.length) o = void 0;\n return { value: o && o[i++], done: !o };\n }\n };\n throw new TypeError(s ? \"Object is not iterable.\" : \"Symbol.iterator is not defined.\");\n};\n// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.\n// SPDX-License-Identifier: Apache-2.0\nimport { browserOrNode, isWebWorker } from '@aws-amplify/core';\nimport Observable from 'zen-observable-ts';\nvar ReachabilityNavigator = /** @class */ (function () {\n function ReachabilityNavigator() {\n }\n ReachabilityNavigator.prototype.networkMonitor = function (netInfo) {\n if (browserOrNode().isNode) {\n return Observable.from([{ online: true }]);\n }\n var globalObj = isWebWorker() ? self : window;\n return new Observable(function (observer) {\n observer.next({ online: globalObj.navigator.onLine });\n var notifyOnline = function () { return observer.next({ online: true }); };\n var notifyOffline = function () { return observer.next({ online: false }); };\n globalObj.addEventListener('online', notifyOnline);\n globalObj.addEventListener('offline', notifyOffline);\n ReachabilityNavigator._observers.push(observer);\n return function () {\n globalObj.removeEventListener('online', notifyOnline);\n globalObj.removeEventListener('offline', notifyOffline);\n ReachabilityNavigator._observers = ReachabilityNavigator._observers.filter(function (_observer) { return _observer !== observer; });\n };\n });\n };\n // expose observers to simulate offline mode for integration testing\n ReachabilityNavigator._observerOverride = function (status) {\n var e_1, _a;\n var _loop_1 = function (observer) {\n if (observer.closed) {\n ReachabilityNavigator._observers = ReachabilityNavigator._observers.filter(function (_observer) { return _observer !== observer; });\n return \"continue\";\n }\n observer.next(status);\n };\n try {\n for (var _b = __values(ReachabilityNavigator._observers), _c = _b.next(); !_c.done; _c = _b.next()) {\n var observer = _c.value;\n _loop_1(observer);\n }\n }\n catch (e_1_1) { e_1 = { error: e_1_1 }; }\n finally {\n try {\n if (_c && !_c.done && (_a = _b.return)) _a.call(_b);\n }\n finally { if (e_1) throw e_1.error; }\n }\n };\n ReachabilityNavigator._observers = [];\n return ReachabilityNavigator;\n}());\nexport default ReachabilityNavigator;\n","// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.\n// SPDX-License-Identifier: Apache-2.0\nimport { Reachability } from '@aws-amplify/core';\n\nexport const ReachabilityMonitor = () => new Reachability().networkMonitor();\n","// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.\n// SPDX-License-Identifier: Apache-2.0\nimport { Observer } from 'zen-observable-ts';\nimport { RECONNECT_DELAY, RECONNECT_INTERVAL } from '../Providers/constants';\n\nexport enum ReconnectEvent {\n\tSTART_RECONNECT = 'START_RECONNECT',\n\tHALT_RECONNECT = 'HALT_RECONNECT',\n}\n\n/**\n * Captures the reconnect event logic used to determine when to reconnect to PubSub providers.\n * Reconnnect attempts are delayed by 5 seconds to let the interface settle.\n * Attempting to reconnect only once creates unrecoverable states when the network state isn't\n * supported by the browser, so this keeps retrying every minute until halted.\n */\nexport class ReconnectionMonitor {\n\tprivate reconnectObservers: Observer[] = [];\n\tprivate reconnectIntervalId?: ReturnType;\n\tprivate reconnectSetTimeoutId?: ReturnType;\n\n\t/**\n\t * Add reconnect observer to the list of observers to alert on reconnect\n\t */\n\taddObserver(reconnectObserver: Observer) {\n\t\tthis.reconnectObservers.push(reconnectObserver);\n\t}\n\n\t/**\n\t * Given a reconnect event, start the appropriate behavior\n\t */\n\trecord(event: ReconnectEvent) {\n\t\tif (event === ReconnectEvent.START_RECONNECT) {\n\t\t\t// If the reconnection hasn't been started\n\t\t\tif (\n\t\t\t\tthis.reconnectSetTimeoutId === undefined &&\n\t\t\t\tthis.reconnectIntervalId === undefined\n\t\t\t) {\n\t\t\t\tthis.reconnectSetTimeoutId = setTimeout(() => {\n\t\t\t\t\t// Reconnect now\n\t\t\t\t\tthis._triggerReconnect();\n\t\t\t\t\t// Retry reconnect every periodically until it works\n\t\t\t\t\tthis.reconnectIntervalId = setInterval(() => {\n\t\t\t\t\t\tthis._triggerReconnect();\n\t\t\t\t\t}, RECONNECT_INTERVAL);\n\t\t\t\t}, RECONNECT_DELAY);\n\t\t\t}\n\t\t}\n\n\t\tif (event === ReconnectEvent.HALT_RECONNECT) {\n\t\t\tif (this.reconnectIntervalId) {\n\t\t\t\tclearInterval(this.reconnectIntervalId);\n\t\t\t\tthis.reconnectIntervalId = undefined;\n\t\t\t}\n\t\t\tif (this.reconnectSetTimeoutId) {\n\t\t\t\tclearTimeout(this.reconnectSetTimeoutId);\n\t\t\t\tthis.reconnectSetTimeoutId = undefined;\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Complete all reconnect observers\n\t */\n\tclose() {\n\t\tthis.reconnectObservers.forEach(reconnectObserver => {\n\t\t\treconnectObserver.complete?.();\n\t\t});\n\t}\n\n\tprivate _triggerReconnect() {\n\t\tthis.reconnectObservers.forEach(reconnectObserver => {\n\t\t\treconnectObserver.next?.();\n\t\t});\n\t}\n}\n","// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.\n// SPDX-License-Identifier: Apache-2.0\n\nimport Observable, { ZenObservable } from 'zen-observable-ts';\nimport { ConnectionState } from '../types/PubSub';\nimport { ReachabilityMonitor } from './ReachabilityMonitor';\n\n// Internal types for tracking different connection states\ntype LinkedConnectionState = 'connected' | 'disconnected';\ntype LinkedHealthState = 'healthy' | 'unhealthy';\ntype LinkedConnectionStates = {\n\tnetworkState: LinkedConnectionState;\n\tconnectionState: LinkedConnectionState | 'connecting';\n\tintendedConnectionState: LinkedConnectionState;\n\tkeepAliveState: LinkedHealthState;\n};\n\nexport const CONNECTION_CHANGE: {\n\t[key in\n\t\t| 'KEEP_ALIVE_MISSED'\n\t\t| 'KEEP_ALIVE'\n\t\t| 'CONNECTION_ESTABLISHED'\n\t\t| 'CONNECTION_FAILED'\n\t\t| 'CLOSING_CONNECTION'\n\t\t| 'OPENING_CONNECTION'\n\t\t| 'CLOSED'\n\t\t| 'ONLINE'\n\t\t| 'OFFLINE']: Partial;\n} = {\n\tKEEP_ALIVE_MISSED: { keepAliveState: 'unhealthy' },\n\tKEEP_ALIVE: { keepAliveState: 'healthy' },\n\tCONNECTION_ESTABLISHED: { connectionState: 'connected' },\n\tCONNECTION_FAILED: {\n\t\tintendedConnectionState: 'disconnected',\n\t\tconnectionState: 'disconnected',\n\t},\n\tCLOSING_CONNECTION: { intendedConnectionState: 'disconnected' },\n\tOPENING_CONNECTION: {\n\t\tintendedConnectionState: 'connected',\n\t\tconnectionState: 'connecting',\n\t},\n\tCLOSED: { connectionState: 'disconnected' },\n\tONLINE: { networkState: 'connected' },\n\tOFFLINE: { networkState: 'disconnected' },\n};\n\nexport class ConnectionStateMonitor {\n\t/**\n\t * @private\n\t */\n\tprivate _linkedConnectionState: LinkedConnectionStates;\n\tprivate _linkedConnectionStateObservable: Observable;\n\tprivate _linkedConnectionStateObserver: ZenObservable.SubscriptionObserver;\n\tprivate _networkMonitoringSubscription?: ZenObservable.Subscription;\n\tprivate _initialNetworkStateSubscription?: ZenObservable.Subscription;\n\n\tconstructor() {\n\t\tthis._networkMonitoringSubscription = undefined;\n\t\tthis._linkedConnectionState = {\n\t\t\tnetworkState: 'connected',\n\t\t\tconnectionState: 'disconnected',\n\t\t\tintendedConnectionState: 'disconnected',\n\t\t\tkeepAliveState: 'healthy',\n\t\t};\n\n\t\t// Attempt to update the state with the current actual network state\n\t\tthis._initialNetworkStateSubscription = ReachabilityMonitor().subscribe(\n\t\t\t({ online }) => {\n\t\t\t\tthis.record(\n\t\t\t\t\tonline ? CONNECTION_CHANGE.ONLINE : CONNECTION_CHANGE.OFFLINE\n\t\t\t\t);\n\t\t\t\tthis._initialNetworkStateSubscription?.unsubscribe();\n\t\t\t}\n\t\t);\n\n\t\tthis._linkedConnectionStateObservable =\n\t\t\tnew Observable(connectionStateObserver => {\n\t\t\t\tconnectionStateObserver.next(this._linkedConnectionState);\n\t\t\t\tthis._linkedConnectionStateObserver = connectionStateObserver;\n\t\t\t});\n\t}\n\n\t/**\n\t * Turn network state monitoring on if it isn't on already\n\t */\n\tprivate enableNetworkMonitoring() {\n\t\t// If no initial network state was discovered, stop trying\n\t\tthis._initialNetworkStateSubscription?.unsubscribe();\n\n\t\t// Maintain the network state based on the reachability monitor\n\t\tif (this._networkMonitoringSubscription === undefined) {\n\t\t\tthis._networkMonitoringSubscription = ReachabilityMonitor().subscribe(\n\t\t\t\t({ online }) => {\n\t\t\t\t\tthis.record(\n\t\t\t\t\t\tonline ? CONNECTION_CHANGE.ONLINE : CONNECTION_CHANGE.OFFLINE\n\t\t\t\t\t);\n\t\t\t\t}\n\t\t\t);\n\t\t}\n\t}\n\n\t/**\n\t * Turn network state monitoring off if it isn't off already\n\t */\n\tprivate disableNetworkMonitoring() {\n\t\tthis._networkMonitoringSubscription?.unsubscribe();\n\t\tthis._networkMonitoringSubscription = undefined;\n\t}\n\n\t/**\n\t * Get the observable that allows us to monitor the connection state\n\t *\n\t * @returns {Observable} - The observable that emits ConnectionState updates\n\t */\n\tpublic get connectionStateObservable(): Observable {\n\t\tlet previous: ConnectionState;\n\n\t\t// The linked state aggregates state changes to any of the network, connection,\n\t\t// intendedConnection and keepAliveHealth. Some states will change these independent\n\t\t// states without changing the overall connection state.\n\n\t\t// After translating from linked states to ConnectionState, then remove any duplicates\n\t\treturn this._linkedConnectionStateObservable\n\t\t\t.map(value => {\n\t\t\t\treturn this.connectionStatesTranslator(value);\n\t\t\t})\n\t\t\t.filter(current => {\n\t\t\t\tconst toInclude = current !== previous;\n\t\t\t\tprevious = current;\n\t\t\t\treturn toInclude;\n\t\t\t});\n\t}\n\n\t/*\n\t * Updates local connection state and emits the full state to the observer.\n\t */\n\trecord(statusUpdates: Partial) {\n\t\t// Maintain the network monitor\n\t\tif (statusUpdates.intendedConnectionState === 'connected') {\n\t\t\tthis.enableNetworkMonitoring();\n\t\t} else if (statusUpdates.intendedConnectionState === 'disconnected') {\n\t\t\tthis.disableNetworkMonitoring();\n\t\t}\n\n\t\t// Maintain the socket state\n\t\tconst newSocketStatus = {\n\t\t\t...this._linkedConnectionState,\n\t\t\t...statusUpdates,\n\t\t};\n\n\t\tthis._linkedConnectionState = { ...newSocketStatus };\n\n\t\tthis._linkedConnectionStateObserver.next(this._linkedConnectionState);\n\t}\n\n\t/*\n\t * Translate the ConnectionState structure into a specific ConnectionState string literal union\n\t */\n\tprivate connectionStatesTranslator({\n\t\tconnectionState,\n\t\tnetworkState,\n\t\tintendedConnectionState,\n\t\tkeepAliveState,\n\t}: LinkedConnectionStates): ConnectionState {\n\t\tif (connectionState === 'connected' && networkState === 'disconnected')\n\t\t\treturn ConnectionState.ConnectedPendingNetwork;\n\n\t\tif (\n\t\t\tconnectionState === 'connected' &&\n\t\t\tintendedConnectionState === 'disconnected'\n\t\t)\n\t\t\treturn ConnectionState.ConnectedPendingDisconnect;\n\n\t\tif (\n\t\t\tconnectionState === 'disconnected' &&\n\t\t\tintendedConnectionState === 'connected' &&\n\t\t\tnetworkState === 'disconnected'\n\t\t)\n\t\t\treturn ConnectionState.ConnectionDisruptedPendingNetwork;\n\n\t\tif (\n\t\t\tconnectionState === 'disconnected' &&\n\t\t\tintendedConnectionState === 'connected'\n\t\t)\n\t\t\treturn ConnectionState.ConnectionDisrupted;\n\n\t\tif (connectionState === 'connected' && keepAliveState === 'unhealthy')\n\t\t\treturn ConnectionState.ConnectedPendingKeepAlive;\n\n\t\t// All remaining states directly correspond to the connection state\n\t\tif (connectionState === 'connecting') return ConnectionState.Connecting;\n\t\tif (connectionState === 'disconnected') return ConnectionState.Disconnected;\n\t\treturn ConnectionState.Connected;\n\t}\n}\n","import { GRAPHQL_AUTH_MODE } from '@aws-amplify/auth';\nexport { GRAPHQL_AUTH_MODE };\nexport var GraphQLAuthError;\n(function (GraphQLAuthError) {\n GraphQLAuthError[\"NO_API_KEY\"] = \"No api-key configured\";\n GraphQLAuthError[\"NO_CURRENT_USER\"] = \"No current user\";\n GraphQLAuthError[\"NO_CREDENTIALS\"] = \"No credentials\";\n GraphQLAuthError[\"NO_FEDERATED_JWT\"] = \"No federated jwt\";\n GraphQLAuthError[\"NO_AUTH_TOKEN\"] = \"No auth token specified\";\n})(GraphQLAuthError || (GraphQLAuthError = {}));\n","// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.\n// SPDX-License-Identifier: Apache-2.0\nimport Observable, { ZenObservable } from 'zen-observable-ts';\nimport { GraphQLError } from 'graphql';\nimport * as url from 'url';\nimport { v4 as uuid } from 'uuid';\nimport { Buffer } from 'buffer';\nimport { ProviderOptions } from '../../types/Provider';\nimport {\n\tLogger,\n\tCredentials,\n\tSigner,\n\tHub,\n\tConstants,\n\tUSER_AGENT_HEADER,\n\tjitteredExponentialRetry,\n\tNonRetryableError,\n\tICredentials,\n\tisNonRetryableError,\n\tCustomUserAgentDetails,\n\tgetAmplifyUserAgent,\n} from '@aws-amplify/core';\nimport { Cache } from '@aws-amplify/cache';\nimport { Auth, GRAPHQL_AUTH_MODE } from '@aws-amplify/auth';\nimport { AbstractPubSubProvider } from '../PubSubProvider';\nimport {\n\tCONTROL_MSG,\n\tConnectionState,\n\tPubSubContent,\n\tPubSubContentObserver,\n} from '../../types/PubSub';\n\nimport {\n\tAMPLIFY_SYMBOL,\n\tAWS_APPSYNC_REALTIME_HEADERS,\n\tCONNECTION_INIT_TIMEOUT,\n\tDEFAULT_KEEP_ALIVE_TIMEOUT,\n\tDEFAULT_KEEP_ALIVE_ALERT_TIMEOUT,\n\tMAX_DELAY_MS,\n\tMESSAGE_TYPES,\n\tNON_RETRYABLE_CODES,\n\tSOCKET_STATUS,\n\tSTART_ACK_TIMEOUT,\n\tSUBSCRIPTION_STATUS,\n\tCONNECTION_STATE_CHANGE,\n} from '../constants';\nimport {\n\tConnectionStateMonitor,\n\tCONNECTION_CHANGE,\n} from '../../utils/ConnectionStateMonitor';\nimport {\n\tReconnectEvent,\n\tReconnectionMonitor,\n} from '../../utils/ReconnectionMonitor';\n\nconst logger = new Logger('AWSAppSyncRealTimeProvider');\n\nconst dispatchApiEvent = (\n\tevent: string,\n\tdata: Record,\n\tmessage: string\n) => {\n\tHub.dispatch('api', { event, data, message }, 'PubSub', AMPLIFY_SYMBOL);\n};\n\nexport type ObserverQuery = {\n\tobserver: PubSubContentObserver;\n\tquery: string;\n\tvariables: Record;\n\tsubscriptionState: SUBSCRIPTION_STATUS;\n\tsubscriptionReadyCallback?: Function;\n\tsubscriptionFailedCallback?: Function;\n\tstartAckTimeoutId?: ReturnType;\n};\n\nconst standardDomainPattern =\n\t/^https:\\/\\/\\w{26}\\.appsync\\-api\\.\\w{2}(?:(?:\\-\\w{2,})+)\\-\\d\\.amazonaws.com(?:\\.cn)?\\/graphql$/i;\n\nconst customDomainPath = '/realtime';\n\ntype GraphqlAuthModes = keyof typeof GRAPHQL_AUTH_MODE;\n\ntype DataObject = {\n\tdata: Record;\n};\n\ntype DataPayload = {\n\tid: string;\n\tpayload: DataObject;\n\ttype: string;\n};\n\ntype ParsedMessagePayload = {\n\ttype: string;\n\tpayload: {\n\t\tconnectionTimeoutMs: number;\n\t\terrors?: [{ errorType: string; errorCode: number }];\n\t};\n};\n\nexport interface AWSAppSyncRealTimeProviderOptions extends ProviderOptions {\n\tappSyncGraphqlEndpoint?: string;\n\tauthenticationType?: GraphqlAuthModes;\n\tquery?: string;\n\tvariables?: Record;\n\tapiKey?: string;\n\tregion?: string;\n\tgraphql_headers?: () => {} | (() => Promise<{}>);\n\tadditionalHeaders?: { [key: string]: string };\n}\n\ntype AWSAppSyncRealTimeAuthInput =\n\tPartial & {\n\t\tcanonicalUri: string;\n\t\tpayload: string;\n\t\thost?: string | undefined;\n\t};\n\nexport class AWSAppSyncRealTimeProvider extends AbstractPubSubProvider {\n\tprivate awsRealTimeSocket?: WebSocket;\n\tprivate socketStatus: SOCKET_STATUS = SOCKET_STATUS.CLOSED;\n\tprivate keepAliveTimeoutId?: ReturnType;\n\tprivate keepAliveTimeout = DEFAULT_KEEP_ALIVE_TIMEOUT;\n\tprivate keepAliveAlertTimeoutId?: ReturnType;\n\tprivate subscriptionObserverMap: Map = new Map();\n\tprivate promiseArray: Array<{ res: Function; rej: Function }> = [];\n\tprivate connectionState: ConnectionState;\n\tprivate readonly connectionStateMonitor = new ConnectionStateMonitor();\n\tprivate readonly reconnectionMonitor = new ReconnectionMonitor();\n\tprivate connectionStateMonitorSubscription: ZenObservable.Subscription;\n\n\tconstructor(options: ProviderOptions = {}) {\n\t\tsuper(options);\n\t\t// Monitor the connection state and pass changes along to Hub\n\t\tthis.connectionStateMonitorSubscription =\n\t\t\tthis.connectionStateMonitor.connectionStateObservable.subscribe(\n\t\t\t\tconnectionState => {\n\t\t\t\t\tdispatchApiEvent(\n\t\t\t\t\t\tCONNECTION_STATE_CHANGE,\n\t\t\t\t\t\t{\n\t\t\t\t\t\t\tprovider: this,\n\t\t\t\t\t\t\tconnectionState,\n\t\t\t\t\t\t},\n\t\t\t\t\t\t`Connection state is ${connectionState}`\n\t\t\t\t\t);\n\t\t\t\t\tthis.connectionState = connectionState;\n\n\t\t\t\t\t// Trigger START_RECONNECT when the connection is disrupted\n\t\t\t\t\tif (connectionState === ConnectionState.ConnectionDisrupted) {\n\t\t\t\t\t\tthis.reconnectionMonitor.record(ReconnectEvent.START_RECONNECT);\n\t\t\t\t\t}\n\n\t\t\t\t\t// Trigger HALT_RECONNECT to halt reconnection attempts when the state is anything other than\n\t\t\t\t\t// ConnectionDisrupted or Connecting\n\t\t\t\t\tif (\n\t\t\t\t\t\t[\n\t\t\t\t\t\t\tConnectionState.Connected,\n\t\t\t\t\t\t\tConnectionState.ConnectedPendingDisconnect,\n\t\t\t\t\t\t\tConnectionState.ConnectedPendingKeepAlive,\n\t\t\t\t\t\t\tConnectionState.ConnectedPendingNetwork,\n\t\t\t\t\t\t\tConnectionState.ConnectionDisruptedPendingNetwork,\n\t\t\t\t\t\t\tConnectionState.Disconnected,\n\t\t\t\t\t\t].includes(connectionState)\n\t\t\t\t\t) {\n\t\t\t\t\t\tthis.reconnectionMonitor.record(ReconnectEvent.HALT_RECONNECT);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t);\n\t}\n\n\t/**\n\t * Mark the socket closed and release all active listeners\n\t */\n\tclose() {\n\t\t// Mark the socket closed both in status and the connection monitor\n\t\tthis.socketStatus = SOCKET_STATUS.CLOSED;\n\t\tthis.connectionStateMonitor.record(CONNECTION_CHANGE.CONNECTION_FAILED);\n\n\t\t// Turn off the subscription monitor Hub publishing\n\t\tthis.connectionStateMonitorSubscription.unsubscribe();\n\t\t// Complete all reconnect observers\n\t\tthis.reconnectionMonitor.close();\n\t}\n\n\tgetNewWebSocket(url: string, protocol: string) {\n\t\treturn new WebSocket(url, protocol);\n\t}\n\n\tgetProviderName() {\n\t\treturn 'AWSAppSyncRealTimeProvider';\n\t}\n\n\tnewClient(): Promise {\n\t\tthrow new Error('Not used here');\n\t}\n\n\tpublic async publish(\n\t\t_topics: string[] | string,\n\t\t_msg: PubSubContent,\n\t\t_options?: AWSAppSyncRealTimeProviderOptions\n\t) {\n\t\tthrow new Error('Operation not supported');\n\t}\n\n\t// Check if url matches standard domain pattern\n\tprivate isCustomDomain(url: string): boolean {\n\t\treturn url.match(standardDomainPattern) === null;\n\t}\n\n\tsubscribe(\n\t\t_topics: string[] | string,\n\t\toptions?: AWSAppSyncRealTimeProviderOptions,\n\t\tcustomUserAgentDetails?: CustomUserAgentDetails\n\t): Observable> {\n\t\tconst appSyncGraphqlEndpoint = options?.appSyncGraphqlEndpoint;\n\n\t\treturn new Observable(observer => {\n\t\t\tif (!options || !appSyncGraphqlEndpoint) {\n\t\t\t\tobserver.error({\n\t\t\t\t\terrors: [\n\t\t\t\t\t\t{\n\t\t\t\t\t\t\t...new GraphQLError(\n\t\t\t\t\t\t\t\t`Subscribe only available for AWS AppSync endpoint`\n\t\t\t\t\t\t\t),\n\t\t\t\t\t\t},\n\t\t\t\t\t],\n\t\t\t\t});\n\t\t\t\tobserver.complete();\n\t\t\t} else {\n\t\t\t\tlet subscriptionStartActive = false;\n\t\t\t\tconst subscriptionId = uuid();\n\t\t\t\tconst startSubscription = () => {\n\t\t\t\t\tif (!subscriptionStartActive) {\n\t\t\t\t\t\tsubscriptionStartActive = true;\n\n\t\t\t\t\t\tconst startSubscriptionPromise =\n\t\t\t\t\t\t\tthis._startSubscriptionWithAWSAppSyncRealTime({\n\t\t\t\t\t\t\t\toptions,\n\t\t\t\t\t\t\t\tobserver,\n\t\t\t\t\t\t\t\tsubscriptionId,\n\t\t\t\t\t\t\t\tcustomUserAgentDetails,\n\t\t\t\t\t\t\t}).catch(err => {\n\t\t\t\t\t\t\t\tlogger.debug(\n\t\t\t\t\t\t\t\t\t`${CONTROL_MSG.REALTIME_SUBSCRIPTION_INIT_ERROR}: ${err}`\n\t\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\t\tthis.connectionStateMonitor.record(CONNECTION_CHANGE.CLOSED);\n\t\t\t\t\t\t\t});\n\t\t\t\t\t\tstartSubscriptionPromise.finally(() => {\n\t\t\t\t\t\t\tsubscriptionStartActive = false;\n\t\t\t\t\t\t});\n\t\t\t\t\t}\n\t\t\t\t};\n\n\t\t\t\tlet reconnectSubscription: ZenObservable.Subscription;\n\n\t\t\t\t// Add an observable to the reconnection list to manage reconnection for this subscription\n\t\t\t\treconnectSubscription = new Observable(observer => {\n\t\t\t\t\tthis.reconnectionMonitor.addObserver(observer);\n\t\t\t\t}).subscribe(() => {\n\t\t\t\t\tstartSubscription();\n\t\t\t\t});\n\n\t\t\t\tstartSubscription();\n\n\t\t\t\treturn async () => {\n\t\t\t\t\t// Cleanup reconnection subscription\n\t\t\t\t\treconnectSubscription?.unsubscribe();\n\n\t\t\t\t\t// Cleanup after unsubscribing or observer.complete was called after _startSubscriptionWithAWSAppSyncRealTime\n\t\t\t\t\ttry {\n\t\t\t\t\t\t// Waiting that subscription has been connected before trying to unsubscribe\n\t\t\t\t\t\tawait this._waitForSubscriptionToBeConnected(subscriptionId);\n\n\t\t\t\t\t\tconst { subscriptionState } =\n\t\t\t\t\t\t\tthis.subscriptionObserverMap.get(subscriptionId) || {};\n\n\t\t\t\t\t\tif (!subscriptionState) {\n\t\t\t\t\t\t\t// subscription already unsubscribed\n\t\t\t\t\t\t\treturn;\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tif (subscriptionState === SUBSCRIPTION_STATUS.CONNECTED) {\n\t\t\t\t\t\t\tthis._sendUnsubscriptionMessage(subscriptionId);\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\tthrow new Error('Subscription never connected');\n\t\t\t\t\t\t}\n\t\t\t\t\t} catch (err) {\n\t\t\t\t\t\tlogger.debug(`Error while unsubscribing ${err}`);\n\t\t\t\t\t} finally {\n\t\t\t\t\t\tthis._removeSubscriptionObserver(subscriptionId);\n\t\t\t\t\t}\n\t\t\t\t};\n\t\t\t}\n\t\t});\n\t}\n\n\tprotected get isSSLEnabled() {\n\t\treturn !this.options[\n\t\t\t'aws_appsync_dangerously_connect_to_http_endpoint_for_testing'\n\t\t];\n\t}\n\n\tprivate async _startSubscriptionWithAWSAppSyncRealTime({\n\t\toptions,\n\t\tobserver,\n\t\tsubscriptionId,\n\t\tcustomUserAgentDetails,\n\t}: {\n\t\toptions: AWSAppSyncRealTimeProviderOptions;\n\t\tobserver: PubSubContentObserver;\n\t\tsubscriptionId: string;\n\t\tcustomUserAgentDetails: CustomUserAgentDetails;\n\t}) {\n\t\tconst {\n\t\t\tappSyncGraphqlEndpoint,\n\t\t\tauthenticationType,\n\t\t\tquery,\n\t\t\tvariables,\n\t\t\tapiKey,\n\t\t\tregion,\n\t\t\tgraphql_headers = () => ({}),\n\t\t\tadditionalHeaders = {},\n\t\t} = options;\n\n\t\tconst subscriptionState: SUBSCRIPTION_STATUS = SUBSCRIPTION_STATUS.PENDING;\n\t\tconst data = {\n\t\t\tquery,\n\t\t\tvariables,\n\t\t};\n\t\t// Having a subscription id map will make it simple to forward messages received\n\t\tthis.subscriptionObserverMap.set(subscriptionId, {\n\t\t\tobserver,\n\t\t\tquery: query ?? '',\n\t\t\tvariables: variables ?? {},\n\t\t\tsubscriptionState,\n\t\t\tstartAckTimeoutId: undefined,\n\t\t});\n\n\t\t// Preparing payload for subscription message\n\n\t\tconst dataString = JSON.stringify(data);\n\t\tconst headerObj = {\n\t\t\t...(await this._awsRealTimeHeaderBasedAuth({\n\t\t\t\tapiKey,\n\t\t\t\tappSyncGraphqlEndpoint,\n\t\t\t\tauthenticationType,\n\t\t\t\tpayload: dataString,\n\t\t\t\tcanonicalUri: '',\n\t\t\t\tregion,\n\t\t\t\tadditionalHeaders,\n\t\t\t})),\n\t\t\t...(await graphql_headers()),\n\t\t\t...additionalHeaders,\n\t\t\t[USER_AGENT_HEADER]: getAmplifyUserAgent(customUserAgentDetails),\n\t\t};\n\n\t\tconst subscriptionMessage = {\n\t\t\tid: subscriptionId,\n\t\t\tpayload: {\n\t\t\t\tdata: dataString,\n\t\t\t\textensions: {\n\t\t\t\t\tauthorization: {\n\t\t\t\t\t\t...headerObj,\n\t\t\t\t\t},\n\t\t\t\t},\n\t\t\t},\n\t\t\ttype: MESSAGE_TYPES.GQL_START,\n\t\t};\n\n\t\tconst stringToAWSRealTime = JSON.stringify(subscriptionMessage);\n\n\t\ttry {\n\t\t\tthis.connectionStateMonitor.record(CONNECTION_CHANGE.OPENING_CONNECTION);\n\t\t\tawait this._initializeWebSocketConnection({\n\t\t\t\tapiKey,\n\t\t\t\tappSyncGraphqlEndpoint,\n\t\t\t\tauthenticationType,\n\t\t\t\tregion,\n\t\t\t\tadditionalHeaders,\n\t\t\t});\n\t\t} catch (err) {\n\t\t\tthis._logStartSubscriptionError(subscriptionId, observer, err);\n\t\t\treturn;\n\t\t}\n\n\t\t// Potential race condition can occur when unsubscribe is called during _initializeWebSocketConnection.\n\t\t// E.g.unsubscribe gets invoked prior to finishing WebSocket handshake or START_ACK.\n\t\t// Both subscriptionFailedCallback and subscriptionReadyCallback are used to synchronized this.\n\n\t\tconst { subscriptionFailedCallback, subscriptionReadyCallback } =\n\t\t\tthis.subscriptionObserverMap.get(subscriptionId) ?? {};\n\n\t\t// This must be done before sending the message in order to be listening immediately\n\t\tthis.subscriptionObserverMap.set(subscriptionId, {\n\t\t\tobserver,\n\t\t\tsubscriptionState,\n\t\t\tquery: query ?? '',\n\t\t\tvariables: variables ?? {},\n\t\t\tsubscriptionReadyCallback,\n\t\t\tsubscriptionFailedCallback,\n\t\t\tstartAckTimeoutId: setTimeout(() => {\n\t\t\t\tthis._timeoutStartSubscriptionAck.call(this, subscriptionId);\n\t\t\t}, START_ACK_TIMEOUT),\n\t\t});\n\t\tif (this.awsRealTimeSocket) {\n\t\t\tthis.awsRealTimeSocket.send(stringToAWSRealTime);\n\t\t}\n\t}\n\n\t// Log logic for start subscription failures\n\tprivate _logStartSubscriptionError(\n\t\tsubscriptionId: string,\n\t\tobserver: PubSubContentObserver,\n\t\terr: { message?: string }\n\t) {\n\t\tlogger.debug({ err });\n\t\tconst message = String(err.message ?? '');\n\t\t// Resolving to give the state observer time to propogate the update\n\t\tPromise.resolve(\n\t\t\tthis.connectionStateMonitor.record(CONNECTION_CHANGE.CLOSED)\n\t\t);\n\n\t\t// Capture the error only when the network didn't cause disruption\n\t\tif (\n\t\t\tthis.connectionState !== ConnectionState.ConnectionDisruptedPendingNetwork\n\t\t) {\n\t\t\t// When the error is non-retriable, error out the observable\n\t\t\tif (isNonRetryableError(err)) {\n\t\t\t\tobserver.error({\n\t\t\t\t\terrors: [\n\t\t\t\t\t\t{\n\t\t\t\t\t\t\t...new GraphQLError(\n\t\t\t\t\t\t\t\t`${CONTROL_MSG.CONNECTION_FAILED}: ${message}`\n\t\t\t\t\t\t\t),\n\t\t\t\t\t\t},\n\t\t\t\t\t],\n\t\t\t\t});\n\t\t\t} else {\n\t\t\t\tlogger.debug(`${CONTROL_MSG.CONNECTION_FAILED}: ${message}`);\n\t\t\t}\n\n\t\t\tconst { subscriptionFailedCallback } =\n\t\t\t\tthis.subscriptionObserverMap.get(subscriptionId) || {};\n\n\t\t\t// Notify concurrent unsubscription\n\t\t\tif (typeof subscriptionFailedCallback === 'function') {\n\t\t\t\tsubscriptionFailedCallback();\n\t\t\t}\n\t\t}\n\t}\n\n\t// Waiting that subscription has been connected before trying to unsubscribe\n\tprivate async _waitForSubscriptionToBeConnected(subscriptionId: string) {\n\t\tconst subscriptionObserver =\n\t\t\tthis.subscriptionObserverMap.get(subscriptionId);\n\t\tif (subscriptionObserver) {\n\t\t\tconst { subscriptionState } = subscriptionObserver;\n\t\t\t// This in case unsubscribe is invoked before sending start subscription message\n\t\t\tif (subscriptionState === SUBSCRIPTION_STATUS.PENDING) {\n\t\t\t\treturn new Promise((res, rej) => {\n\t\t\t\t\tconst { observer, subscriptionState, variables, query } =\n\t\t\t\t\t\tsubscriptionObserver;\n\t\t\t\t\tthis.subscriptionObserverMap.set(subscriptionId, {\n\t\t\t\t\t\tobserver,\n\t\t\t\t\t\tsubscriptionState,\n\t\t\t\t\t\tvariables,\n\t\t\t\t\t\tquery,\n\t\t\t\t\t\tsubscriptionReadyCallback: res,\n\t\t\t\t\t\tsubscriptionFailedCallback: rej,\n\t\t\t\t\t});\n\t\t\t\t});\n\t\t\t}\n\t\t}\n\t}\n\n\tprivate _sendUnsubscriptionMessage(subscriptionId: string) {\n\t\ttry {\n\t\t\tif (\n\t\t\t\tthis.awsRealTimeSocket &&\n\t\t\t\tthis.awsRealTimeSocket.readyState === WebSocket.OPEN &&\n\t\t\t\tthis.socketStatus === SOCKET_STATUS.READY\n\t\t\t) {\n\t\t\t\t// Preparing unsubscribe message to stop receiving messages for that subscription\n\t\t\t\tconst unsubscribeMessage = {\n\t\t\t\t\tid: subscriptionId,\n\t\t\t\t\ttype: MESSAGE_TYPES.GQL_STOP,\n\t\t\t\t};\n\t\t\t\tconst stringToAWSRealTime = JSON.stringify(unsubscribeMessage);\n\t\t\t\tthis.awsRealTimeSocket.send(stringToAWSRealTime);\n\t\t\t}\n\t\t} catch (err) {\n\t\t\t// If GQL_STOP is not sent because of disconnection issue, then there is nothing the client can do\n\t\t\tlogger.debug({ err });\n\t\t}\n\t}\n\n\tprivate _removeSubscriptionObserver(subscriptionId: string) {\n\t\tthis.subscriptionObserverMap.delete(subscriptionId);\n\n\t\t// Verifying 1000ms after removing subscription in case there are new subscription unmount/mount\n\t\tsetTimeout(this._closeSocketIfRequired.bind(this), 1000);\n\t}\n\n\tprivate _closeSocketIfRequired() {\n\t\tif (this.subscriptionObserverMap.size > 0) {\n\t\t\t// Active subscriptions on the WebSocket\n\t\t\treturn;\n\t\t}\n\n\t\tif (!this.awsRealTimeSocket) {\n\t\t\tthis.socketStatus = SOCKET_STATUS.CLOSED;\n\t\t\treturn;\n\t\t}\n\n\t\tthis.connectionStateMonitor.record(CONNECTION_CHANGE.CLOSING_CONNECTION);\n\n\t\tif (this.awsRealTimeSocket.bufferedAmount > 0) {\n\t\t\t// Still data on the WebSocket\n\t\t\tsetTimeout(this._closeSocketIfRequired.bind(this), 1000);\n\t\t} else {\n\t\t\tlogger.debug('closing WebSocket...');\n\t\t\tif (this.keepAliveTimeoutId) {\n\t\t\t\tclearTimeout(this.keepAliveTimeoutId);\n\t\t\t}\n\t\t\tif (this.keepAliveAlertTimeoutId) {\n\t\t\t\tclearTimeout(this.keepAliveAlertTimeoutId);\n\t\t\t}\n\t\t\tconst tempSocket = this.awsRealTimeSocket;\n\t\t\t// Cleaning callbacks to avoid race condition, socket still exists\n\t\t\ttempSocket.onclose = null;\n\t\t\ttempSocket.onerror = null;\n\t\t\ttempSocket.close(1000);\n\t\t\tthis.awsRealTimeSocket = undefined;\n\t\t\tthis.socketStatus = SOCKET_STATUS.CLOSED;\n\t\t\tthis.connectionStateMonitor.record(CONNECTION_CHANGE.CLOSED);\n\t\t}\n\t}\n\n\tprivate _handleIncomingSubscriptionMessage(message: MessageEvent) {\n\t\tif (typeof message.data !== 'string') {\n\t\t\treturn;\n\t\t}\n\t\tlogger.debug(\n\t\t\t`subscription message from AWS AppSync RealTime: ${message.data}`\n\t\t);\n\t\tconst {\n\t\t\tid = '',\n\t\t\tpayload,\n\t\t\ttype,\n\t\t}: DataPayload = JSON.parse(String(message.data));\n\t\tconst {\n\t\t\tobserver = null,\n\t\t\tquery = '',\n\t\t\tvariables = {},\n\t\t\tstartAckTimeoutId,\n\t\t\tsubscriptionReadyCallback,\n\t\t\tsubscriptionFailedCallback,\n\t\t} = this.subscriptionObserverMap.get(id) || {};\n\n\t\tlogger.debug({ id, observer, query, variables });\n\n\t\tif (type === MESSAGE_TYPES.GQL_DATA && payload && payload.data) {\n\t\t\tif (observer) {\n\t\t\t\tobserver.next(payload);\n\t\t\t} else {\n\t\t\t\tlogger.debug(`observer not found for id: ${id}`);\n\t\t\t}\n\t\t\treturn;\n\t\t}\n\n\t\tif (type === MESSAGE_TYPES.GQL_START_ACK) {\n\t\t\tlogger.debug(\n\t\t\t\t`subscription ready for ${JSON.stringify({ query, variables })}`\n\t\t\t);\n\t\t\tif (typeof subscriptionReadyCallback === 'function') {\n\t\t\t\tsubscriptionReadyCallback();\n\t\t\t}\n\t\t\tif (startAckTimeoutId) clearTimeout(startAckTimeoutId);\n\t\t\tdispatchApiEvent(\n\t\t\t\tCONTROL_MSG.SUBSCRIPTION_ACK,\n\t\t\t\t{ query, variables },\n\t\t\t\t'Connection established for subscription'\n\t\t\t);\n\t\t\tconst subscriptionState = SUBSCRIPTION_STATUS.CONNECTED;\n\t\t\tif (observer) {\n\t\t\t\tthis.subscriptionObserverMap.set(id, {\n\t\t\t\t\tobserver,\n\t\t\t\t\tquery,\n\t\t\t\t\tvariables,\n\t\t\t\t\tstartAckTimeoutId: undefined,\n\t\t\t\t\tsubscriptionState,\n\t\t\t\t\tsubscriptionReadyCallback,\n\t\t\t\t\tsubscriptionFailedCallback,\n\t\t\t\t});\n\t\t\t}\n\t\t\tthis.connectionStateMonitor.record(\n\t\t\t\tCONNECTION_CHANGE.CONNECTION_ESTABLISHED\n\t\t\t);\n\n\t\t\treturn;\n\t\t}\n\n\t\tif (type === MESSAGE_TYPES.GQL_CONNECTION_KEEP_ALIVE) {\n\t\t\tif (this.keepAliveTimeoutId) clearTimeout(this.keepAliveTimeoutId);\n\t\t\tif (this.keepAliveAlertTimeoutId)\n\t\t\t\tclearTimeout(this.keepAliveAlertTimeoutId);\n\t\t\tthis.keepAliveTimeoutId = setTimeout(\n\t\t\t\t() => this._errorDisconnect(CONTROL_MSG.TIMEOUT_DISCONNECT),\n\t\t\t\tthis.keepAliveTimeout\n\t\t\t);\n\t\t\tthis.keepAliveAlertTimeoutId = setTimeout(() => {\n\t\t\t\tthis.connectionStateMonitor.record(CONNECTION_CHANGE.KEEP_ALIVE_MISSED);\n\t\t\t}, DEFAULT_KEEP_ALIVE_ALERT_TIMEOUT);\n\t\t\tthis.connectionStateMonitor.record(CONNECTION_CHANGE.KEEP_ALIVE);\n\t\t\treturn;\n\t\t}\n\n\t\tif (type === MESSAGE_TYPES.GQL_ERROR) {\n\t\t\tconst subscriptionState = SUBSCRIPTION_STATUS.FAILED;\n\t\t\tif (observer) {\n\t\t\t\tthis.subscriptionObserverMap.set(id, {\n\t\t\t\t\tobserver,\n\t\t\t\t\tquery,\n\t\t\t\t\tvariables,\n\t\t\t\t\tstartAckTimeoutId,\n\t\t\t\t\tsubscriptionReadyCallback,\n\t\t\t\t\tsubscriptionFailedCallback,\n\t\t\t\t\tsubscriptionState,\n\t\t\t\t});\n\n\t\t\t\tlogger.debug(\n\t\t\t\t\t`${CONTROL_MSG.CONNECTION_FAILED}: ${JSON.stringify(payload)}`\n\t\t\t\t);\n\n\t\t\t\tobserver.error({\n\t\t\t\t\terrors: [\n\t\t\t\t\t\t{\n\t\t\t\t\t\t\t...new GraphQLError(\n\t\t\t\t\t\t\t\t`${CONTROL_MSG.CONNECTION_FAILED}: ${JSON.stringify(payload)}`\n\t\t\t\t\t\t\t),\n\t\t\t\t\t\t},\n\t\t\t\t\t],\n\t\t\t\t});\n\n\t\t\t\tif (startAckTimeoutId) clearTimeout(startAckTimeoutId);\n\n\t\t\t\tif (typeof subscriptionFailedCallback === 'function') {\n\t\t\t\t\tsubscriptionFailedCallback();\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\tprivate _errorDisconnect(msg: string) {\n\t\tlogger.debug(`Disconnect error: ${msg}`);\n\n\t\tif (this.awsRealTimeSocket) {\n\t\t\tthis.connectionStateMonitor.record(CONNECTION_CHANGE.CLOSED);\n\t\t\tthis.awsRealTimeSocket.close();\n\t\t}\n\n\t\tthis.socketStatus = SOCKET_STATUS.CLOSED;\n\t}\n\n\tprivate _timeoutStartSubscriptionAck(subscriptionId: string) {\n\t\tconst subscriptionObserver =\n\t\t\tthis.subscriptionObserverMap.get(subscriptionId);\n\t\tif (subscriptionObserver) {\n\t\t\tconst { observer, query, variables } = subscriptionObserver;\n\t\t\tif (!observer) {\n\t\t\t\treturn;\n\t\t\t}\n\t\t\tthis.subscriptionObserverMap.set(subscriptionId, {\n\t\t\t\tobserver,\n\t\t\t\tquery,\n\t\t\t\tvariables,\n\t\t\t\tsubscriptionState: SUBSCRIPTION_STATUS.FAILED,\n\t\t\t});\n\n\t\t\tthis.connectionStateMonitor.record(CONNECTION_CHANGE.CLOSED);\n\t\t\tlogger.debug(\n\t\t\t\t'timeoutStartSubscription',\n\t\t\t\tJSON.stringify({ query, variables })\n\t\t\t);\n\t\t}\n\t}\n\n\tprivate _initializeWebSocketConnection({\n\t\tappSyncGraphqlEndpoint,\n\t\tauthenticationType,\n\t\tapiKey,\n\t\tregion,\n\t\tadditionalHeaders,\n\t}: AWSAppSyncRealTimeProviderOptions) {\n\t\tif (this.socketStatus === SOCKET_STATUS.READY) {\n\t\t\treturn;\n\t\t}\n\t\treturn new Promise(async (res, rej) => {\n\t\t\tthis.promiseArray.push({ res, rej });\n\n\t\t\tif (this.socketStatus === SOCKET_STATUS.CLOSED) {\n\t\t\t\ttry {\n\t\t\t\t\tthis.socketStatus = SOCKET_STATUS.CONNECTING;\n\n\t\t\t\t\tconst payloadString = '{}';\n\n\t\t\t\t\tconst authHeader = await this._awsRealTimeHeaderBasedAuth({\n\t\t\t\t\t\tauthenticationType,\n\t\t\t\t\t\tpayload: payloadString,\n\t\t\t\t\t\tcanonicalUri: '/connect',\n\t\t\t\t\t\tapiKey,\n\t\t\t\t\t\tappSyncGraphqlEndpoint,\n\t\t\t\t\t\tregion,\n\t\t\t\t\t\tadditionalHeaders,\n\t\t\t\t\t});\n\n\t\t\t\t\tconst headerString = authHeader ? JSON.stringify(authHeader) : '';\n\t\t\t\t\tconst headerQs = Buffer.from(headerString).toString('base64');\n\n\t\t\t\t\tconst payloadQs = Buffer.from(payloadString).toString('base64');\n\n\t\t\t\t\tlet discoverableEndpoint = appSyncGraphqlEndpoint ?? '';\n\n\t\t\t\t\tif (this.isCustomDomain(discoverableEndpoint)) {\n\t\t\t\t\t\tdiscoverableEndpoint =\n\t\t\t\t\t\t\tdiscoverableEndpoint.concat(customDomainPath);\n\t\t\t\t\t} else {\n\t\t\t\t\t\tdiscoverableEndpoint = discoverableEndpoint\n\t\t\t\t\t\t\t.replace('appsync-api', 'appsync-realtime-api')\n\t\t\t\t\t\t\t.replace('gogi-beta', 'grt-beta');\n\t\t\t\t\t}\n\n\t\t\t\t\t// Creating websocket url with required query strings\n\t\t\t\t\tconst protocol = this.isSSLEnabled ? 'wss://' : 'ws://';\n\t\t\t\t\tdiscoverableEndpoint = discoverableEndpoint\n\t\t\t\t\t\t.replace('https://', protocol)\n\t\t\t\t\t\t.replace('http://', protocol);\n\n\t\t\t\t\tconst awsRealTimeUrl = `${discoverableEndpoint}?header=${headerQs}&payload=${payloadQs}`;\n\n\t\t\t\t\tawait this._initializeRetryableHandshake(awsRealTimeUrl);\n\n\t\t\t\t\tthis.promiseArray.forEach(({ res }) => {\n\t\t\t\t\t\tlogger.debug('Notifying connection successful');\n\t\t\t\t\t\tres();\n\t\t\t\t\t});\n\t\t\t\t\tthis.socketStatus = SOCKET_STATUS.READY;\n\t\t\t\t\tthis.promiseArray = [];\n\t\t\t\t} catch (err) {\n\t\t\t\t\tlogger.debug('Connection exited with', err);\n\t\t\t\t\tthis.promiseArray.forEach(({ rej }) => rej(err));\n\t\t\t\t\tthis.promiseArray = [];\n\t\t\t\t\tif (\n\t\t\t\t\t\tthis.awsRealTimeSocket &&\n\t\t\t\t\t\tthis.awsRealTimeSocket.readyState === WebSocket.OPEN\n\t\t\t\t\t) {\n\t\t\t\t\t\tthis.awsRealTimeSocket.close(3001);\n\t\t\t\t\t}\n\t\t\t\t\tthis.awsRealTimeSocket = undefined;\n\t\t\t\t\tthis.socketStatus = SOCKET_STATUS.CLOSED;\n\t\t\t\t}\n\t\t\t}\n\t\t});\n\t}\n\n\tprivate async _initializeRetryableHandshake(awsRealTimeUrl: string) {\n\t\tlogger.debug(`Initializaling retryable Handshake`);\n\t\tawait jitteredExponentialRetry(\n\t\t\tthis._initializeHandshake.bind(this),\n\t\t\t[awsRealTimeUrl],\n\t\t\tMAX_DELAY_MS\n\t\t);\n\t}\n\n\tprivate async _initializeHandshake(awsRealTimeUrl: string) {\n\t\tlogger.debug(`Initializing handshake ${awsRealTimeUrl}`);\n\t\t// Because connecting the socket is async, is waiting until connection is open\n\t\t// Step 1: connect websocket\n\t\ttry {\n\t\t\tawait (() => {\n\t\t\t\treturn new Promise((res, rej) => {\n\t\t\t\t\tconst newSocket = this.getNewWebSocket(awsRealTimeUrl, 'graphql-ws');\n\t\t\t\t\tnewSocket.onerror = () => {\n\t\t\t\t\t\tlogger.debug(`WebSocket connection error`);\n\t\t\t\t\t};\n\t\t\t\t\tnewSocket.onclose = () => {\n\t\t\t\t\t\trej(new Error('Connection handshake error'));\n\t\t\t\t\t};\n\t\t\t\t\tnewSocket.onopen = () => {\n\t\t\t\t\t\tthis.awsRealTimeSocket = newSocket;\n\t\t\t\t\t\treturn res();\n\t\t\t\t\t};\n\t\t\t\t});\n\t\t\t})();\n\t\t\t// Step 2: wait for ack from AWS AppSyncReaTime after sending init\n\t\t\tawait (() => {\n\t\t\t\treturn new Promise((res, rej) => {\n\t\t\t\t\tif (this.awsRealTimeSocket) {\n\t\t\t\t\t\tlet ackOk = false;\n\t\t\t\t\t\tthis.awsRealTimeSocket.onerror = error => {\n\t\t\t\t\t\t\tlogger.debug(`WebSocket error ${JSON.stringify(error)}`);\n\t\t\t\t\t\t};\n\t\t\t\t\t\tthis.awsRealTimeSocket.onclose = event => {\n\t\t\t\t\t\t\tlogger.debug(`WebSocket closed ${event.reason}`);\n\t\t\t\t\t\t\trej(new Error(JSON.stringify(event)));\n\t\t\t\t\t\t};\n\n\t\t\t\t\t\tthis.awsRealTimeSocket.onmessage = (message: MessageEvent) => {\n\t\t\t\t\t\t\tif (typeof message.data !== 'string') {\n\t\t\t\t\t\t\t\treturn;\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\tlogger.debug(\n\t\t\t\t\t\t\t\t`subscription message from AWS AppSyncRealTime: ${message.data} `\n\t\t\t\t\t\t\t);\n\t\t\t\t\t\t\tconst data = JSON.parse(message.data) as ParsedMessagePayload;\n\t\t\t\t\t\t\tconst {\n\t\t\t\t\t\t\t\ttype,\n\t\t\t\t\t\t\t\tpayload: {\n\t\t\t\t\t\t\t\t\tconnectionTimeoutMs = DEFAULT_KEEP_ALIVE_TIMEOUT,\n\t\t\t\t\t\t\t\t} = {},\n\t\t\t\t\t\t\t} = data;\n\t\t\t\t\t\t\tif (type === MESSAGE_TYPES.GQL_CONNECTION_ACK) {\n\t\t\t\t\t\t\t\tackOk = true;\n\t\t\t\t\t\t\t\tif (this.awsRealTimeSocket) {\n\t\t\t\t\t\t\t\t\tthis.keepAliveTimeout = connectionTimeoutMs;\n\t\t\t\t\t\t\t\t\tthis.awsRealTimeSocket.onmessage =\n\t\t\t\t\t\t\t\t\t\tthis._handleIncomingSubscriptionMessage.bind(this);\n\t\t\t\t\t\t\t\t\tthis.awsRealTimeSocket.onerror = err => {\n\t\t\t\t\t\t\t\t\t\tlogger.debug(err);\n\t\t\t\t\t\t\t\t\t\tthis._errorDisconnect(CONTROL_MSG.CONNECTION_CLOSED);\n\t\t\t\t\t\t\t\t\t};\n\t\t\t\t\t\t\t\t\tthis.awsRealTimeSocket.onclose = event => {\n\t\t\t\t\t\t\t\t\t\tlogger.debug(`WebSocket closed ${event.reason}`);\n\t\t\t\t\t\t\t\t\t\tthis._errorDisconnect(CONTROL_MSG.CONNECTION_CLOSED);\n\t\t\t\t\t\t\t\t\t};\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\tres('Cool, connected to AWS AppSyncRealTime');\n\t\t\t\t\t\t\t\treturn;\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tif (type === MESSAGE_TYPES.GQL_CONNECTION_ERROR) {\n\t\t\t\t\t\t\t\tconst {\n\t\t\t\t\t\t\t\t\tpayload: {\n\t\t\t\t\t\t\t\t\t\terrors: [{ errorType = '', errorCode = 0 } = {}] = [],\n\t\t\t\t\t\t\t\t\t} = {},\n\t\t\t\t\t\t\t\t} = data;\n\n\t\t\t\t\t\t\t\trej({ errorType, errorCode });\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t};\n\n\t\t\t\t\t\tconst gqlInit = {\n\t\t\t\t\t\t\ttype: MESSAGE_TYPES.GQL_CONNECTION_INIT,\n\t\t\t\t\t\t};\n\t\t\t\t\t\tthis.awsRealTimeSocket.send(JSON.stringify(gqlInit));\n\n\t\t\t\t\t\tconst checkAckOk = (ackOk: boolean) => {\n\t\t\t\t\t\t\tif (!ackOk) {\n\t\t\t\t\t\t\t\tthis.connectionStateMonitor.record(\n\t\t\t\t\t\t\t\t\tCONNECTION_CHANGE.CONNECTION_FAILED\n\t\t\t\t\t\t\t\t);\n\t\t\t\t\t\t\t\trej(\n\t\t\t\t\t\t\t\t\tnew Error(\n\t\t\t\t\t\t\t\t\t\t`Connection timeout: ack from AWSAppSyncRealTime was not received after ${CONNECTION_INIT_TIMEOUT} ms`\n\t\t\t\t\t\t\t\t\t)\n\t\t\t\t\t\t\t\t);\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t};\n\n\t\t\t\t\t\tsetTimeout(() => checkAckOk(ackOk), CONNECTION_INIT_TIMEOUT);\n\t\t\t\t\t}\n\t\t\t\t});\n\t\t\t})();\n\t\t} catch (err) {\n\t\t\tconst { errorType, errorCode } = err as {\n\t\t\t\terrorType: string;\n\t\t\t\terrorCode: number;\n\t\t\t};\n\n\t\t\tif (NON_RETRYABLE_CODES.includes(errorCode)) {\n\t\t\t\tthrow new NonRetryableError(errorType);\n\t\t\t} else if (errorType) {\n\t\t\t\tthrow new Error(errorType);\n\t\t\t} else {\n\t\t\t\tthrow err;\n\t\t\t}\n\t\t}\n\t}\n\n\tprivate async _awsRealTimeHeaderBasedAuth({\n\t\tauthenticationType,\n\t\tpayload,\n\t\tcanonicalUri,\n\t\tappSyncGraphqlEndpoint,\n\t\tapiKey,\n\t\tregion,\n\t\tadditionalHeaders,\n\t}: AWSAppSyncRealTimeAuthInput): Promise<\n\t\tRecord | undefined\n\t> {\n\t\tconst headerHandler: {\n\t\t\t[key in GraphqlAuthModes]: (AWSAppSyncRealTimeAuthInput) => {};\n\t\t} = {\n\t\t\tAPI_KEY: this._awsRealTimeApiKeyHeader.bind(this),\n\t\t\tAWS_IAM: this._awsRealTimeIAMHeader.bind(this),\n\t\t\tOPENID_CONNECT: this._awsRealTimeOPENIDHeader.bind(this),\n\t\t\tAMAZON_COGNITO_USER_POOLS: this._awsRealTimeCUPHeader.bind(this),\n\t\t\tAWS_LAMBDA: this._customAuthHeader,\n\t\t};\n\n\t\tif (!authenticationType || !headerHandler[authenticationType]) {\n\t\t\tlogger.debug(`Authentication type ${authenticationType} not supported`);\n\t\t\treturn undefined;\n\t\t} else {\n\t\t\tconst handler = headerHandler[authenticationType];\n\n\t\t\tconst { host } = url.parse(appSyncGraphqlEndpoint ?? '');\n\n\t\t\tlogger.debug(`Authenticating with ${authenticationType}`);\n\n\t\t\tconst result = await handler({\n\t\t\t\tpayload,\n\t\t\t\tcanonicalUri,\n\t\t\t\tappSyncGraphqlEndpoint,\n\t\t\t\tapiKey,\n\t\t\t\tregion,\n\t\t\t\thost,\n\t\t\t\tadditionalHeaders,\n\t\t\t});\n\n\t\t\treturn result;\n\t\t}\n\t}\n\n\tprivate async _awsRealTimeCUPHeader({ host }: AWSAppSyncRealTimeAuthInput) {\n\t\tconst session = await Auth.currentSession();\n\t\treturn {\n\t\t\tAuthorization: session.getAccessToken().getJwtToken(),\n\t\t\thost,\n\t\t};\n\t}\n\n\tprivate async _awsRealTimeOPENIDHeader({\n\t\thost,\n\t}: AWSAppSyncRealTimeAuthInput) {\n\t\tlet token;\n\t\t// backwards compatibility\n\t\tconst federatedInfo = await Cache.getItem('federatedInfo');\n\t\tif (federatedInfo) {\n\t\t\ttoken = federatedInfo.token;\n\t\t} else {\n\t\t\tconst currentUser = await Auth.currentAuthenticatedUser();\n\t\t\tif (currentUser) {\n\t\t\t\ttoken = currentUser.token;\n\t\t\t}\n\t\t}\n\t\tif (!token) {\n\t\t\tthrow new Error('No federated jwt');\n\t\t}\n\t\treturn {\n\t\t\tAuthorization: token,\n\t\t\thost,\n\t\t};\n\t}\n\n\tprivate async _awsRealTimeApiKeyHeader({\n\t\tapiKey,\n\t\thost,\n\t}: AWSAppSyncRealTimeAuthInput) {\n\t\tconst dt = new Date();\n\t\tconst dtStr = dt.toISOString().replace(/[:\\-]|\\.\\d{3}/g, '');\n\n\t\treturn {\n\t\t\thost,\n\t\t\t'x-amz-date': dtStr,\n\t\t\t'x-api-key': apiKey,\n\t\t};\n\t}\n\n\tprivate async _awsRealTimeIAMHeader({\n\t\tpayload,\n\t\tcanonicalUri,\n\t\tappSyncGraphqlEndpoint,\n\t\tregion,\n\t}: AWSAppSyncRealTimeAuthInput) {\n\t\tconst endpointInfo = {\n\t\t\tregion,\n\t\t\tservice: 'appsync',\n\t\t};\n\n\t\tconst credentialsOK = await this._ensureCredentials();\n\t\tif (!credentialsOK) {\n\t\t\tthrow new Error('No credentials');\n\t\t}\n\t\tconst creds = await Credentials.get().then((credentials: any) => {\n\t\t\tconst { secretAccessKey, accessKeyId, sessionToken } =\n\t\t\t\tcredentials as ICredentials;\n\n\t\t\treturn {\n\t\t\t\tsecret_key: secretAccessKey,\n\t\t\t\taccess_key: accessKeyId,\n\t\t\t\tsession_token: sessionToken,\n\t\t\t};\n\t\t});\n\n\t\tconst request = {\n\t\t\turl: `${appSyncGraphqlEndpoint}${canonicalUri}`,\n\t\t\tdata: payload,\n\t\t\tmethod: 'POST',\n\t\t\theaders: { ...AWS_APPSYNC_REALTIME_HEADERS },\n\t\t};\n\n\t\tconst signed_params = Signer.sign(request, creds, endpointInfo);\n\t\treturn signed_params.headers;\n\t}\n\n\tprivate _customAuthHeader({\n\t\thost,\n\t\tadditionalHeaders,\n\t}: AWSAppSyncRealTimeAuthInput) {\n\t\tif (!additionalHeaders || !additionalHeaders['Authorization']) {\n\t\t\tthrow new Error('No auth token specified');\n\t\t}\n\n\t\treturn {\n\t\t\tAuthorization: additionalHeaders.Authorization,\n\t\t\thost,\n\t\t};\n\t}\n\n\t/**\n\t * @private\n\t */\n\t_ensureCredentials() {\n\t\treturn Credentials.get()\n\t\t\t.then((credentials: any) => {\n\t\t\t\tif (!credentials) return false;\n\t\t\t\tconst cred = Credentials.shear(credentials);\n\t\t\t\tlogger.debug('set credentials for AWSAppSyncRealTimeProvider', cred);\n\n\t\t\t\treturn true;\n\t\t\t})\n\t\t\t.catch((err: any) => {\n\t\t\t\tlogger.warn('ensure credentials error', err);\n\t\t\t\treturn false;\n\t\t\t});\n\t}\n}\n","// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.\n// SPDX-License-Identifier: Apache-2.0\nimport {\n\tAmplify,\n\tbrowserOrNode,\n\tCategory,\n\tConsoleLogger as Logger,\n\tCustomUserAgentDetails,\n\tINTERNAL_AWS_APPSYNC_REALTIME_PUBSUB_PROVIDER,\n\tPubSubAction,\n} from '@aws-amplify/core';\nimport { PubSubProvider, PubSubOptions, ProviderOptions } from '../types';\nimport { AWSAppSyncRealTimeProvider } from '../Providers';\nimport { PubSubContent } from '../types/PubSub';\nimport Observable from 'zen-observable-ts';\n\nconst { isNode } = browserOrNode();\nconst logger = new Logger('PubSub');\n\ntype PubSubObservable = {\n\tprovider: PubSubProvider;\n\tvalue: string | Record;\n};\n\nexport class InternalPubSubClass {\n\tprivate _options: PubSubOptions;\n\n\tprivate _pluggables: PubSubProvider[];\n\n\t/**\n\t * Internal instance of AWSAppSyncRealTimeProvider used by the API category to subscribe to AppSync\n\t */\n\tprivate _awsAppSyncRealTimeProvider?: AWSAppSyncRealTimeProvider;\n\n\t/**\n\t * Lazy instantiate AWSAppSyncRealTimeProvider when it is required by the API category\n\t */\n\tprivate get awsAppSyncRealTimeProvider() {\n\t\tif (!this._awsAppSyncRealTimeProvider) {\n\t\t\tthis._awsAppSyncRealTimeProvider = new AWSAppSyncRealTimeProvider(\n\t\t\t\tthis._options\n\t\t\t);\n\t\t}\n\t\treturn this._awsAppSyncRealTimeProvider;\n\t}\n\n\t/**\n\t * Initialize PubSub with AWS configurations\n\t *\n\t * @param {PubSubOptions} options - Configuration object for PubSub\n\t */\n\tconstructor(options?: PubSubOptions) {\n\t\tthis._options = options ?? {};\n\t\tlogger.debug('PubSub Options', this._options);\n\t\tthis._pluggables = [];\n\t\tthis.subscribe = this.subscribe.bind(this);\n\t}\n\n\tpublic getModuleName() {\n\t\treturn 'InternalPubSub';\n\t}\n\n\t/**\n\t * Configure PubSub part with configurations\n\t *\n\t * @param {PubSubOptions} config - Configuration for PubSub\n\t * @return {Object} - The current configuration\n\t */\n\tconfigure(options: PubSubOptions) {\n\t\tconst opt: Record = options\n\t\t\t? options.PubSub || options\n\t\t\t: {};\n\t\tlogger.debug('configure PubSub', { opt });\n\n\t\tthis._options = Object.assign({}, this._options, opt);\n\n\t\tthis._pluggables.map(pluggable => pluggable.configure(this._options));\n\n\t\treturn this._options;\n\t}\n\n\t/**\n\t * add plugin into Analytics category\n\t * @param {Object} pluggable - an instance of the plugin\n\t */\n\tpublic async addPluggable(pluggable: PubSubProvider) {\n\t\tif (pluggable && pluggable.getCategory() === 'PubSub') {\n\t\t\tthis._pluggables.push(pluggable);\n\n\t\t\tconst config = pluggable.configure(this._options);\n\n\t\t\treturn config;\n\t\t}\n\t}\n\n\t/**\n\t * remove plugin from PubSub category\n\t * @param providerName - the name of the plugin\n\t */\n\tremovePluggable(providerName: string): void {\n\t\tthis._pluggables = this._pluggables.filter(\n\t\t\tpluggable => pluggable.getProviderName() !== providerName\n\t\t);\n\t}\n\n\tprivate getProviderByName(providerName: string | symbol) {\n\t\tif (providerName === INTERNAL_AWS_APPSYNC_REALTIME_PUBSUB_PROVIDER) {\n\t\t\treturn this.awsAppSyncRealTimeProvider;\n\t\t}\n\n\t\treturn this._pluggables.find(\n\t\t\tpluggable => pluggable.getProviderName() === providerName\n\t\t);\n\t}\n\n\tprivate getProviders(options: ProviderOptions = {}) {\n\t\tconst providerName = options.provider;\n\t\tif (!providerName) {\n\t\t\treturn this._pluggables;\n\t\t}\n\n\t\tconst provider = this.getProviderByName(providerName);\n\t\tif (!provider) {\n\t\t\tthrow new Error(`Could not find provider named ${String(providerName)}`);\n\t\t}\n\n\t\treturn [provider];\n\t}\n\n\tasync publish(\n\t\ttopics: string[] | string,\n\t\tmsg: PubSubContent,\n\t\toptions?: ProviderOptions\n\t) {\n\t\treturn Promise.all(\n\t\t\tthis.getProviders(options).map(provider =>\n\t\t\t\tprovider.publish(topics, msg, options)\n\t\t\t)\n\t\t);\n\t}\n\n\tsubscribe(\n\t\ttopics: string[] | string,\n\t\toptions?: ProviderOptions,\n\t\tcustomUserAgentDetails?: CustomUserAgentDetails\n\t): Observable {\n\t\tif (isNode && this._options && this._options.ssr) {\n\t\t\tthrow new Error(\n\t\t\t\t'Subscriptions are not supported for Server-Side Rendering (SSR)'\n\t\t\t);\n\t\t}\n\n\t\tlogger.debug('subscribe options', options);\n\n\t\tconst providers = this.getProviders(options);\n\n\t\tconst pubSubUserAgentDetails: CustomUserAgentDetails = {\n\t\t\tcategory: Category.PubSub,\n\t\t\taction: PubSubAction.Subscribe,\n\t\t\t...customUserAgentDetails,\n\t\t};\n\n\t\treturn new Observable(observer => {\n\t\t\tconst observables = providers.map(provider => ({\n\t\t\t\tprovider,\n\t\t\t\tobservable: provider.subscribe(topics, options, pubSubUserAgentDetails),\n\t\t\t}));\n\n\t\t\tconst subscriptions = observables.map(({ provider, observable }) =>\n\t\t\t\tobservable.subscribe({\n\t\t\t\t\tstart: console.error,\n\t\t\t\t\tnext: (value: PubSubContent) => observer.next({ provider, value }),\n\t\t\t\t\terror: (error: unknown) => observer.error({ provider, error }),\n\t\t\t\t\t// complete: observer.complete, // TODO: when all completed, complete the outer one\n\t\t\t\t})\n\t\t\t);\n\n\t\t\treturn () =>\n\t\t\t\tsubscriptions.forEach(subscription => subscription.unsubscribe());\n\t\t});\n\t}\n}\n\nexport const InternalPubSub = new InternalPubSubClass();\nAmplify.register(InternalPubSub);\n","/*! *****************************************************************************\r\nCopyright (c) Microsoft Corporation.\r\n\r\nPermission to use, copy, modify, and/or distribute this software for any\r\npurpose with or without fee is hereby granted.\r\n\r\nTHE SOFTWARE IS PROVIDED \"AS IS\" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH\r\nREGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY\r\nAND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,\r\nINDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM\r\nLOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR\r\nOTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR\r\nPERFORMANCE OF THIS SOFTWARE.\r\n***************************************************************************** */\r\n/* global Reflect, Promise */\r\n\r\nvar extendStatics = function(d, b) {\r\n extendStatics = Object.setPrototypeOf ||\r\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\r\n function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\r\n return extendStatics(d, b);\r\n};\r\n\r\nexport function __extends(d, b) {\r\n extendStatics(d, b);\r\n function __() { this.constructor = d; }\r\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\r\n}\r\n\r\nexport var __assign = function() {\r\n __assign = Object.assign || function __assign(t) {\r\n for (var s, i = 1, n = arguments.length; i < n; i++) {\r\n s = arguments[i];\r\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p)) t[p] = s[p];\r\n }\r\n return t;\r\n }\r\n return __assign.apply(this, arguments);\r\n}\r\n\r\nexport function __rest(s, e) {\r\n var t = {};\r\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)\r\n t[p] = s[p];\r\n if (s != null && typeof Object.getOwnPropertySymbols === \"function\")\r\n for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {\r\n if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))\r\n t[p[i]] = s[p[i]];\r\n }\r\n return t;\r\n}\r\n\r\nexport function __decorate(decorators, target, key, desc) {\r\n var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;\r\n if (typeof Reflect === \"object\" && typeof Reflect.decorate === \"function\") r = Reflect.decorate(decorators, target, key, desc);\r\n else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;\r\n return c > 3 && r && Object.defineProperty(target, key, r), r;\r\n}\r\n\r\nexport function __param(paramIndex, decorator) {\r\n return function (target, key) { decorator(target, key, paramIndex); }\r\n}\r\n\r\nexport function __metadata(metadataKey, metadataValue) {\r\n if (typeof Reflect === \"object\" && typeof Reflect.metadata === \"function\") return Reflect.metadata(metadataKey, metadataValue);\r\n}\r\n\r\nexport function __awaiter(thisArg, _arguments, P, generator) {\r\n function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }\r\n return new (P || (P = Promise))(function (resolve, reject) {\r\n function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\r\n function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\r\n function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }\r\n step((generator = generator.apply(thisArg, _arguments || [])).next());\r\n });\r\n}\r\n\r\nexport function __generator(thisArg, body) {\r\n var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;\r\n return g = { next: verb(0), \"throw\": verb(1), \"return\": verb(2) }, typeof Symbol === \"function\" && (g[Symbol.iterator] = function() { return this; }), g;\r\n function verb(n) { return function (v) { return step([n, v]); }; }\r\n function step(op) {\r\n if (f) throw new TypeError(\"Generator is already executing.\");\r\n while (_) try {\r\n if (f = 1, y && (t = op[0] & 2 ? y[\"return\"] : op[0] ? y[\"throw\"] || ((t = y[\"return\"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;\r\n if (y = 0, t) op = [op[0] & 2, t.value];\r\n switch (op[0]) {\r\n case 0: case 1: t = op; break;\r\n case 4: _.label++; return { value: op[1], done: false };\r\n case 5: _.label++; y = op[1]; op = [0]; continue;\r\n case 7: op = _.ops.pop(); _.trys.pop(); continue;\r\n default:\r\n if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }\r\n if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }\r\n if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }\r\n if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }\r\n if (t[2]) _.ops.pop();\r\n _.trys.pop(); continue;\r\n }\r\n op = body.call(thisArg, _);\r\n } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }\r\n if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };\r\n }\r\n}\r\n\r\nexport function __createBinding(o, m, k, k2) {\r\n if (k2 === undefined) k2 = k;\r\n o[k2] = m[k];\r\n}\r\n\r\nexport function __exportStar(m, exports) {\r\n for (var p in m) if (p !== \"default\" && !exports.hasOwnProperty(p)) exports[p] = m[p];\r\n}\r\n\r\nexport function __values(o) {\r\n var s = typeof Symbol === \"function\" && Symbol.iterator, m = s && o[s], i = 0;\r\n if (m) return m.call(o);\r\n if (o && typeof o.length === \"number\") return {\r\n next: function () {\r\n if (o && i >= o.length) o = void 0;\r\n return { value: o && o[i++], done: !o };\r\n }\r\n };\r\n throw new TypeError(s ? \"Object is not iterable.\" : \"Symbol.iterator is not defined.\");\r\n}\r\n\r\nexport function __read(o, n) {\r\n var m = typeof Symbol === \"function\" && o[Symbol.iterator];\r\n if (!m) return o;\r\n var i = m.call(o), r, ar = [], e;\r\n try {\r\n while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);\r\n }\r\n catch (error) { e = { error: error }; }\r\n finally {\r\n try {\r\n if (r && !r.done && (m = i[\"return\"])) m.call(i);\r\n }\r\n finally { if (e) throw e.error; }\r\n }\r\n return ar;\r\n}\r\n\r\nexport function __spread() {\r\n for (var ar = [], i = 0; i < arguments.length; i++)\r\n ar = ar.concat(__read(arguments[i]));\r\n return ar;\r\n}\r\n\r\nexport function __spreadArrays() {\r\n for (var s = 0, i = 0, il = arguments.length; i < il; i++) s += arguments[i].length;\r\n for (var r = Array(s), k = 0, i = 0; i < il; i++)\r\n for (var a = arguments[i], j = 0, jl = a.length; j < jl; j++, k++)\r\n r[k] = a[j];\r\n return r;\r\n};\r\n\r\nexport function __await(v) {\r\n return this instanceof __await ? (this.v = v, this) : new __await(v);\r\n}\r\n\r\nexport function __asyncGenerator(thisArg, _arguments, generator) {\r\n if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n var g = generator.apply(thisArg, _arguments || []), i, q = [];\r\n return i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i;\r\n function verb(n) { if (g[n]) i[n] = function (v) { return new Promise(function (a, b) { q.push([n, v, a, b]) > 1 || resume(n, v); }); }; }\r\n function resume(n, v) { try { step(g[n](v)); } catch (e) { settle(q[0][3], e); } }\r\n function step(r) { r.value instanceof __await ? Promise.resolve(r.value.v).then(fulfill, reject) : settle(q[0][2], r); }\r\n function fulfill(value) { resume(\"next\", value); }\r\n function reject(value) { resume(\"throw\", value); }\r\n function settle(f, v) { if (f(v), q.shift(), q.length) resume(q[0][0], q[0][1]); }\r\n}\r\n\r\nexport function __asyncDelegator(o) {\r\n var i, p;\r\n return i = {}, verb(\"next\"), verb(\"throw\", function (e) { throw e; }), verb(\"return\"), i[Symbol.iterator] = function () { return this; }, i;\r\n function verb(n, f) { i[n] = o[n] ? function (v) { return (p = !p) ? { value: __await(o[n](v)), done: n === \"return\" } : f ? f(v) : v; } : f; }\r\n}\r\n\r\nexport function __asyncValues(o) {\r\n if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n var m = o[Symbol.asyncIterator], i;\r\n return m ? m.call(o) : (o = typeof __values === \"function\" ? __values(o) : o[Symbol.iterator](), i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i);\r\n function verb(n) { i[n] = o[n] && function (v) { return new Promise(function (resolve, reject) { v = o[n](v), settle(resolve, reject, v.done, v.value); }); }; }\r\n function settle(resolve, reject, d, v) { Promise.resolve(v).then(function(v) { resolve({ value: v, done: d }); }, reject); }\r\n}\r\n\r\nexport function __makeTemplateObject(cooked, raw) {\r\n if (Object.defineProperty) { Object.defineProperty(cooked, \"raw\", { value: raw }); } else { cooked.raw = raw; }\r\n return cooked;\r\n};\r\n\r\nexport function __importStar(mod) {\r\n if (mod && mod.__esModule) return mod;\r\n var result = {};\r\n if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];\r\n result.default = mod;\r\n return result;\r\n}\r\n\r\nexport function __importDefault(mod) {\r\n return (mod && mod.__esModule) ? mod : { default: mod };\r\n}\r\n\r\nexport function __classPrivateFieldGet(receiver, privateMap) {\r\n if (!privateMap.has(receiver)) {\r\n throw new TypeError(\"attempted to get private field on non-instance\");\r\n }\r\n return privateMap.get(receiver);\r\n}\r\n\r\nexport function __classPrivateFieldSet(receiver, privateMap, value) {\r\n if (!privateMap.has(receiver)) {\r\n throw new TypeError(\"attempted to set private field on non-instance\");\r\n }\r\n privateMap.set(receiver, value);\r\n return value;\r\n}\r\n","// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.\n// SPDX-License-Identifier: Apache-2.0\nimport { __assign, __awaiter, __generator, __rest } from \"tslib\";\nimport { ConsoleLogger as Logger, Credentials, DateUtils, Signer, } from '@aws-amplify/core';\nimport axios from 'axios';\nimport { parse, format } from 'url';\nvar logger = new Logger('RestClient');\n/**\n* HTTP Client for REST requests. Send and receive JSON data.\n* Sign request with AWS credentials if available\n* Usage:\n
\n*/\nvar RestClient = /** @class */ (function () {\n /**\n * @param {RestClientOptions} [options] - Instance options\n */\n function RestClient(options) {\n this._region = 'us-east-1'; // this will be updated by endpoint function\n this._service = 'execute-api'; // this can be updated by endpoint function\n this._custom_header = undefined; // this can be updated by endpoint function\n /**\n * This weak map provides functionality to let clients cancel\n * in-flight axios requests. https://github.com/axios/axios#cancellation\n *\n * 1. For every axios request, a unique cancel token is generated and added in the request.\n * 2. Promise for fulfilling the request is then mapped to that unique cancel token.\n * 3. The promise is returned to the client.\n * 4. Clients can either wait for the promise to fulfill or call `API.cancel(promise)` to cancel the request.\n * 5. If `API.cancel(promise)` is called, then the corresponding cancel token is retrieved from the map below.\n * 6. Promise returned to the client will be in rejected state with the error provided during cancel.\n * 7. Clients can check if the error is because of cancelling by calling `API.isCancel(error)`.\n *\n * For more details, see https://github.com/aws-amplify/amplify-js/pull/3769#issuecomment-552660025\n */\n this._cancelTokenMap = null;\n this.Credentials = Credentials;\n this._options = options;\n logger.debug('API Options', this._options);\n if (this._cancelTokenMap == null) {\n this._cancelTokenMap = new WeakMap();\n }\n }\n /**\n * Update AWS credentials\n * @param {AWSCredentials} credentials - AWS credentials\n *\n updateCredentials(credentials: AWSCredentials) {\n this.options.credentials = credentials;\n }\n*/\n /**\n * Basic HTTP request. Customizable\n * @param {string | ApiInfo } urlOrApiInfo - Full request URL or Api information\n * @param {string} method - Request HTTP method\n * @param {json} [init] - Request extra params\n * @return {Promise} - A promise that resolves to an object with response status and JSON data, if successful.\n */\n RestClient.prototype.ajax = function (urlOrApiInfo, method, init) {\n return __awaiter(this, void 0, void 0, function () {\n var parsed_url, url, region, service, custom_header, params, libraryHeaders, initParams, isAllResponse, custom_header_obj, _a, _b, search, parsedUrl, credentials, error_1, signedParams, response, error_2, headers, dateHeader, responseDate, requestDate, rawClientDate;\n return __generator(this, function (_c) {\n switch (_c.label) {\n case 0:\n logger.debug(method, urlOrApiInfo);\n region = 'us-east-1';\n service = 'execute-api';\n custom_header = undefined;\n if (typeof urlOrApiInfo === 'string') {\n parsed_url = this._parseUrl(urlOrApiInfo);\n url = urlOrApiInfo;\n }\n else {\n (url = urlOrApiInfo.endpoint, custom_header = urlOrApiInfo.custom_header, region = urlOrApiInfo.region, service = urlOrApiInfo.service);\n parsed_url = this._parseUrl(urlOrApiInfo.endpoint);\n }\n params = {\n method: method,\n url: url,\n host: parsed_url.host,\n path: parsed_url.path,\n headers: {},\n data: null,\n responseType: 'json',\n timeout: 0,\n cancelToken: null,\n };\n libraryHeaders = {};\n initParams = Object.assign({}, init);\n isAllResponse = initParams.response;\n if (initParams.body) {\n if (typeof FormData === 'function' &&\n initParams.body instanceof FormData) {\n libraryHeaders['Content-Type'] = 'multipart/form-data';\n params.data = initParams.body;\n }\n else {\n libraryHeaders['Content-Type'] = 'application/json; charset=UTF-8';\n params.data = JSON.stringify(initParams.body);\n }\n }\n if (initParams.responseType) {\n params.responseType = initParams.responseType;\n }\n if (initParams.withCredentials) {\n params['withCredentials'] = initParams.withCredentials;\n }\n if (initParams.timeout) {\n params.timeout = initParams.timeout;\n }\n if (initParams.cancellableToken) {\n params.cancelToken = initParams.cancellableToken.token;\n }\n params['signerServiceInfo'] = initParams.signerServiceInfo;\n if (!(typeof custom_header === 'function')) return [3 /*break*/, 2];\n return [4 /*yield*/, custom_header()];\n case 1:\n _a = _c.sent();\n return [3 /*break*/, 3];\n case 2:\n _a = undefined;\n _c.label = 3;\n case 3:\n custom_header_obj = _a;\n params.headers = __assign(__assign(__assign({}, libraryHeaders), custom_header_obj), initParams.headers);\n _b = parse(url, true, true), search = _b.search, parsedUrl = __rest(_b, [\"search\"]);\n params.url = format(__assign(__assign({}, parsedUrl), { query: __assign(__assign({}, parsedUrl.query), (initParams.queryStringParameters || {})) }));\n // Do not sign the request if client has added 'Authorization' header,\n // which means custom authorizer.\n if (typeof params.headers['Authorization'] !== 'undefined') {\n params.headers = Object.keys(params.headers).reduce(function (acc, k) {\n if (params.headers[k]) {\n acc[k] = params.headers[k];\n }\n return acc;\n // tslint:disable-next-line:align\n }, {});\n return [2 /*return*/, this._request(params, isAllResponse)];\n }\n _c.label = 4;\n case 4:\n _c.trys.push([4, 6, , 7]);\n return [4 /*yield*/, this.Credentials.get()];\n case 5:\n credentials = _c.sent();\n return [3 /*break*/, 7];\n case 6:\n error_1 = _c.sent();\n logger.debug('No credentials available, the request will be unsigned');\n return [2 /*return*/, this._request(params, isAllResponse)];\n case 7:\n _c.trys.push([7, 9, , 10]);\n signedParams = this._sign(__assign({}, params), credentials, {\n region: region,\n service: service,\n });\n return [4 /*yield*/, axios(signedParams)];\n case 8:\n response = _c.sent();\n return [2 /*return*/, isAllResponse ? response : response.data];\n case 9:\n error_2 = _c.sent();\n logger.debug(error_2);\n if (DateUtils.isClockSkewError(error_2)) {\n headers = error_2.response.headers;\n dateHeader = headers && (headers.date || headers.Date);\n responseDate = new Date(dateHeader);\n requestDate = DateUtils.getDateFromHeaderString(signedParams.headers['x-amz-date']);\n // Compare local clock to the server clock\n if (DateUtils.isClockSkewed(responseDate)) {\n rawClientDate = requestDate.getTime() - DateUtils.getClockOffset();\n DateUtils.setClockOffset(responseDate.getTime() - rawClientDate);\n return [2 /*return*/, this.ajax(urlOrApiInfo, method, init)];\n }\n }\n throw error_2;\n case 10: return [2 /*return*/];\n }\n });\n });\n };\n /**\n * GET HTTP request\n * @param {string | ApiInfo } urlOrApiInfo - Full request URL or Api information\n * @param {JSON} init - Request extra params\n * @return {Promise} - A promise that resolves to an object with response status and JSON data, if successful.\n */\n RestClient.prototype.get = function (urlOrApiInfo, init) {\n return this.ajax(urlOrApiInfo, 'GET', init);\n };\n /**\n * PUT HTTP request\n * @param {string | ApiInfo } urlOrApiInfo - Full request URL or Api information\n * @param {json} init - Request extra params\n * @return {Promise} - A promise that resolves to an object with response status and JSON data, if successful.\n */\n RestClient.prototype.put = function (urlOrApiInfo, init) {\n return this.ajax(urlOrApiInfo, 'PUT', init);\n };\n /**\n * PATCH HTTP request\n * @param {string | ApiInfo } urlOrApiInfo - Full request URL or Api information\n * @param {json} init - Request extra params\n * @return {Promise} - A promise that resolves to an object with response status and JSON data, if successful.\n */\n RestClient.prototype.patch = function (urlOrApiInfo, init) {\n return this.ajax(urlOrApiInfo, 'PATCH', init);\n };\n /**\n * POST HTTP request\n * @param {string | ApiInfo } urlOrApiInfo - Full request URL or Api information\n * @param {json} init - Request extra params\n * @return {Promise} - A promise that resolves to an object with response status and JSON data, if successful.\n */\n RestClient.prototype.post = function (urlOrApiInfo, init) {\n return this.ajax(urlOrApiInfo, 'POST', init);\n };\n /**\n * DELETE HTTP request\n * @param {string | ApiInfo } urlOrApiInfo - Full request URL or Api information\n * @param {json} init - Request extra params\n * @return {Promise} - A promise that resolves to an object with response status and JSON data, if successful.\n */\n RestClient.prototype.del = function (urlOrApiInfo, init) {\n return this.ajax(urlOrApiInfo, 'DELETE', init);\n };\n /**\n * HEAD HTTP request\n * @param {string | ApiInfo } urlOrApiInfo - Full request URL or Api information\n * @param {json} init - Request extra params\n * @return {Promise} - A promise that resolves to an object with response status and JSON data, if successful.\n */\n RestClient.prototype.head = function (urlOrApiInfo, init) {\n return this.ajax(urlOrApiInfo, 'HEAD', init);\n };\n /**\n * Cancel an inflight API request\n * @param {Promise} request - The request promise to cancel\n * @param {string} [message] - A message to include in the cancelation exception\n */\n RestClient.prototype.cancel = function (request, message) {\n var source = this._cancelTokenMap.get(request);\n if (source) {\n source.cancel(message);\n return true;\n }\n return false;\n };\n /**\n * Check if the request has a corresponding cancel token in the WeakMap.\n * @params request - The request promise\n * @return if the request has a corresponding cancel token.\n */\n RestClient.prototype.hasCancelToken = function (request) {\n return this._cancelTokenMap.has(request);\n };\n /**\n * Checks to see if an error thrown is from an api request cancellation\n * @param {any} error - Any error\n * @return {boolean} - A boolean indicating if the error was from an api request cancellation\n */\n RestClient.prototype.isCancel = function (error) {\n return axios.isCancel(error);\n };\n /**\n * Retrieves a new and unique cancel token which can be\n * provided in an axios request to be cancelled later.\n */\n RestClient.prototype.getCancellableToken = function () {\n return axios.CancelToken.source();\n };\n /**\n * Updates the weakmap with a response promise and its\n * cancel token such that the cancel token can be easily\n * retrieved (and used for cancelling the request)\n */\n RestClient.prototype.updateRequestToBeCancellable = function (promise, cancelTokenSource) {\n this._cancelTokenMap.set(promise, cancelTokenSource);\n };\n /**\n * Getting endpoint for API\n * @param {string} apiName - The name of the api\n * @return {string} - The endpoint of the api\n */\n RestClient.prototype.endpoint = function (apiName) {\n var _this = this;\n var cloud_logic_array = this._options.endpoints;\n var response = '';\n if (!Array.isArray(cloud_logic_array)) {\n return response;\n }\n cloud_logic_array.forEach(function (v) {\n if (v.name === apiName) {\n response = v.endpoint;\n if (typeof v.region === 'string') {\n _this._region = v.region;\n }\n else if (typeof _this._options.region === 'string') {\n _this._region = _this._options.region;\n }\n if (typeof v.service === 'string') {\n _this._service = v.service || 'execute-api';\n }\n else {\n _this._service = 'execute-api';\n }\n if (typeof v.custom_header === 'function') {\n _this._custom_header = v.custom_header;\n }\n else {\n _this._custom_header = undefined;\n }\n }\n });\n return response;\n };\n /** private methods **/\n RestClient.prototype._sign = function (params, credentials, _a) {\n var service = _a.service, region = _a.region;\n var signerServiceInfoParams = params.signerServiceInfo, otherParams = __rest(params, [\"signerServiceInfo\"]);\n var endpoint_region = region || this._region || this._options.region;\n var endpoint_service = service || this._service || this._options.service;\n var creds = {\n secret_key: credentials.secretAccessKey,\n access_key: credentials.accessKeyId,\n session_token: credentials.sessionToken,\n };\n var endpointInfo = {\n region: endpoint_region,\n service: endpoint_service,\n };\n var signerServiceInfo = Object.assign(endpointInfo, signerServiceInfoParams);\n var signed_params = Signer.sign(otherParams, creds, signerServiceInfo);\n if (signed_params.data) {\n signed_params.body = signed_params.data;\n }\n logger.debug('Signed Request: ', signed_params);\n delete signed_params.headers['host'];\n return signed_params;\n };\n RestClient.prototype._request = function (params, isAllResponse) {\n if (isAllResponse === void 0) { isAllResponse = false; }\n return axios(params)\n .then(function (response) { return (isAllResponse ? response : response.data); })\n .catch(function (error) {\n logger.debug(error);\n throw error;\n });\n };\n RestClient.prototype._parseUrl = function (url) {\n var parts = url.split('/');\n return {\n host: parts[2],\n path: '/' + parts.slice(3).join('/'),\n };\n };\n return RestClient;\n}());\nexport { RestClient };\n","import { __assign, __awaiter, __generator, __read, __rest } from \"tslib\";\n// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.\n// SPDX-License-Identifier: Apache-2.0\nimport { print, parse, GraphQLError, } from 'graphql';\nimport { Amplify, ConsoleLogger as Logger, Credentials, getAmplifyUserAgent, INTERNAL_AWS_APPSYNC_REALTIME_PUBSUB_PROVIDER, } from '@aws-amplify/core';\nimport { InternalPubSub } from '@aws-amplify/pubsub/internals';\nimport { Auth } from '@aws-amplify/auth';\nimport { Cache } from '@aws-amplify/cache';\nimport { GraphQLAuthError, } from '../types';\nimport { RestClient } from '@aws-amplify/api-rest';\nvar USER_AGENT_HEADER = 'x-amz-user-agent';\nvar logger = new Logger('GraphQLAPI');\nexport var graphqlOperation = function (query, variables, authToken) {\n if (variables === void 0) { variables = {}; }\n return ({\n query: query,\n variables: variables,\n authToken: authToken,\n });\n};\n/**\n * Export Cloud Logic APIs\n */\nvar InternalGraphQLAPIClass = /** @class */ (function () {\n /**\n * Initialize GraphQL API with AWS configuration\n * @param {Object} options - Configuration object for API\n */\n function InternalGraphQLAPIClass(options) {\n this._api = null;\n this.Auth = Auth;\n this.Cache = Cache;\n this.Credentials = Credentials;\n this._options = options;\n logger.debug('API Options', this._options);\n }\n InternalGraphQLAPIClass.prototype.getModuleName = function () {\n return 'InternalGraphQLAPI';\n };\n /**\n * Configure API\n * @param {Object} config - Configuration of the API\n * @return {Object} - The current configuration\n */\n InternalGraphQLAPIClass.prototype.configure = function (options) {\n var _a = options || {}, _b = _a.API, API = _b === void 0 ? {} : _b, otherOptions = __rest(_a, [\"API\"]);\n var opt = __assign(__assign({}, otherOptions), API);\n logger.debug('configure GraphQL API', { opt: opt });\n if (opt['aws_project_region']) {\n opt = Object.assign({}, opt, {\n region: opt['aws_project_region'],\n header: {},\n });\n }\n if (typeof opt.graphql_headers !== 'undefined' &&\n typeof opt.graphql_headers !== 'function') {\n logger.warn('graphql_headers should be a function');\n opt.graphql_headers = undefined;\n }\n this._options = Object.assign({}, this._options, opt);\n this.createInstance();\n return this._options;\n };\n /**\n * Create an instance of API for the library\n * @return - A promise of true if Success\n */\n InternalGraphQLAPIClass.prototype.createInstance = function () {\n logger.debug('create Rest instance');\n if (this._options) {\n this._api = new RestClient(this._options);\n // Share instance Credentials with client for SSR\n this._api.Credentials = this.Credentials;\n return true;\n }\n else {\n return Promise.reject('API not configured');\n }\n };\n InternalGraphQLAPIClass.prototype._headerBasedAuth = function (defaultAuthenticationType, additionalHeaders) {\n if (additionalHeaders === void 0) { additionalHeaders = {}; }\n return __awaiter(this, void 0, void 0, function () {\n var _a, aws_appsync_authenticationType, apiKey, authenticationType, headers, _b, credentialsOK, token, federatedInfo, currentUser, e_1, session, e_2;\n return __generator(this, function (_c) {\n switch (_c.label) {\n case 0:\n _a = this._options, aws_appsync_authenticationType = _a.aws_appsync_authenticationType, apiKey = _a.aws_appsync_apiKey;\n authenticationType = defaultAuthenticationType || aws_appsync_authenticationType || 'AWS_IAM';\n headers = {};\n _b = authenticationType;\n switch (_b) {\n case 'API_KEY': return [3 /*break*/, 1];\n case 'AWS_IAM': return [3 /*break*/, 2];\n case 'OPENID_CONNECT': return [3 /*break*/, 4];\n case 'AMAZON_COGNITO_USER_POOLS': return [3 /*break*/, 11];\n case 'AWS_LAMBDA': return [3 /*break*/, 15];\n }\n return [3 /*break*/, 16];\n case 1:\n if (!apiKey) {\n throw new Error(GraphQLAuthError.NO_API_KEY);\n }\n headers = {\n Authorization: null,\n 'X-Api-Key': apiKey,\n };\n return [3 /*break*/, 17];\n case 2: return [4 /*yield*/, this._ensureCredentials()];\n case 3:\n credentialsOK = _c.sent();\n if (!credentialsOK) {\n throw new Error(GraphQLAuthError.NO_CREDENTIALS);\n }\n return [3 /*break*/, 17];\n case 4:\n _c.trys.push([4, 9, , 10]);\n token = void 0;\n return [4 /*yield*/, Cache.getItem('federatedInfo')];\n case 5:\n federatedInfo = _c.sent();\n if (!federatedInfo) return [3 /*break*/, 6];\n token = federatedInfo.token;\n return [3 /*break*/, 8];\n case 6: return [4 /*yield*/, Auth.currentAuthenticatedUser()];\n case 7:\n currentUser = _c.sent();\n if (currentUser) {\n token = currentUser.token;\n }\n _c.label = 8;\n case 8:\n if (!token) {\n throw new Error(GraphQLAuthError.NO_FEDERATED_JWT);\n }\n headers = {\n Authorization: token,\n };\n return [3 /*break*/, 10];\n case 9:\n e_1 = _c.sent();\n throw new Error(GraphQLAuthError.NO_CURRENT_USER);\n case 10: return [3 /*break*/, 17];\n case 11:\n _c.trys.push([11, 13, , 14]);\n return [4 /*yield*/, this.Auth.currentSession()];\n case 12:\n session = _c.sent();\n headers = {\n Authorization: session.getAccessToken().getJwtToken(),\n };\n return [3 /*break*/, 14];\n case 13:\n e_2 = _c.sent();\n throw new Error(GraphQLAuthError.NO_CURRENT_USER);\n case 14: return [3 /*break*/, 17];\n case 15:\n if (!additionalHeaders.Authorization) {\n throw new Error(GraphQLAuthError.NO_AUTH_TOKEN);\n }\n headers = {\n Authorization: additionalHeaders.Authorization,\n };\n return [3 /*break*/, 17];\n case 16:\n headers = {\n Authorization: null,\n };\n return [3 /*break*/, 17];\n case 17: return [2 /*return*/, headers];\n }\n });\n });\n };\n /**\n * to get the operation type\n * @param operation\n */\n InternalGraphQLAPIClass.prototype.getGraphqlOperationType = function (operation) {\n var doc = parse(operation);\n var definitions = doc.definitions;\n var _a = __read(definitions, 1), operationType = _a[0].operation;\n return operationType;\n };\n /**\n * Executes a GraphQL operation\n *\n * @param options - GraphQL Options\n * @param [additionalHeaders] - headers to merge in after any `graphql_headers` set in the config\n * @returns An Observable if the query is a subscription query, else a promise of the graphql result.\n */\n InternalGraphQLAPIClass.prototype.graphql = function (_a, additionalHeaders, customUserAgentDetails) {\n var paramQuery = _a.query, _b = _a.variables, variables = _b === void 0 ? {} : _b, authMode = _a.authMode, authToken = _a.authToken;\n var query = typeof paramQuery === 'string'\n ? parse(paramQuery)\n : parse(print(paramQuery));\n var _c = __read(query.definitions.filter(function (def) { return def.kind === 'OperationDefinition'; }), 1), _d = _c[0], operationDef = _d === void 0 ? {} : _d;\n var operationType = operationDef.operation;\n var headers = additionalHeaders || {};\n // if an authorization header is set, have the explicit authToken take precedence\n if (authToken) {\n headers.Authorization = authToken;\n }\n switch (operationType) {\n case 'query':\n case 'mutation':\n this.createInstanceIfNotCreated();\n var cancellableToken = this._api.getCancellableToken();\n var initParams = {\n cancellableToken: cancellableToken,\n withCredentials: this._options.withCredentials,\n };\n var responsePromise = this._graphql({ query: query, variables: variables, authMode: authMode }, headers, initParams, customUserAgentDetails);\n this._api.updateRequestToBeCancellable(responsePromise, cancellableToken);\n return responsePromise;\n case 'subscription':\n return this._graphqlSubscribe({ query: query, variables: variables, authMode: authMode }, headers, customUserAgentDetails);\n default:\n throw new Error(\"invalid operation type: \".concat(operationType));\n }\n };\n InternalGraphQLAPIClass.prototype._graphql = function (_a, additionalHeaders, initParams, customUserAgentDetails) {\n var query = _a.query, variables = _a.variables, authMode = _a.authMode;\n if (additionalHeaders === void 0) { additionalHeaders = {}; }\n if (initParams === void 0) { initParams = {}; }\n return __awaiter(this, void 0, void 0, function () {\n var _b, region, appSyncGraphqlEndpoint, _c, graphql_headers, customGraphqlEndpoint, customEndpointRegion, headers, _d, _e, _f, _g, _h, _j, body, init, endpoint, error, response, err_1, errors;\n var _k;\n return __generator(this, function (_l) {\n switch (_l.label) {\n case 0:\n this.createInstanceIfNotCreated();\n _b = this._options, region = _b.aws_appsync_region, appSyncGraphqlEndpoint = _b.aws_appsync_graphqlEndpoint, _c = _b.graphql_headers, graphql_headers = _c === void 0 ? function () { return ({}); } : _c, customGraphqlEndpoint = _b.graphql_endpoint, customEndpointRegion = _b.graphql_endpoint_iam_region;\n _d = [{}];\n _e = !customGraphqlEndpoint;\n if (!_e) return [3 /*break*/, 2];\n return [4 /*yield*/, this._headerBasedAuth(authMode, additionalHeaders)];\n case 1:\n _e = (_l.sent());\n _l.label = 2;\n case 2:\n _f = [__assign.apply(void 0, _d.concat([(_e)]))];\n _g = customGraphqlEndpoint;\n if (!_g) return [3 /*break*/, 6];\n if (!customEndpointRegion) return [3 /*break*/, 4];\n return [4 /*yield*/, this._headerBasedAuth(authMode, additionalHeaders)];\n case 3:\n _h = _l.sent();\n return [3 /*break*/, 5];\n case 4:\n _h = { Authorization: null };\n _l.label = 5;\n case 5:\n _g = (_h);\n _l.label = 6;\n case 6:\n _j = [__assign.apply(void 0, _f.concat([(_g)]))];\n return [4 /*yield*/, graphql_headers({ query: query, variables: variables })];\n case 7:\n headers = __assign.apply(void 0, [__assign.apply(void 0, [__assign.apply(void 0, _j.concat([(_l.sent())])), additionalHeaders]), (!customGraphqlEndpoint && (_k = {},\n _k[USER_AGENT_HEADER] = getAmplifyUserAgent(customUserAgentDetails),\n _k))]);\n body = {\n query: print(query),\n variables: variables,\n };\n init = Object.assign({\n headers: headers,\n body: body,\n signerServiceInfo: {\n service: !customGraphqlEndpoint ? 'appsync' : 'execute-api',\n region: !customGraphqlEndpoint ? region : customEndpointRegion,\n },\n }, initParams);\n endpoint = customGraphqlEndpoint || appSyncGraphqlEndpoint;\n if (!endpoint) {\n error = new GraphQLError('No graphql endpoint provided.');\n throw {\n data: {},\n errors: [error],\n };\n }\n _l.label = 8;\n case 8:\n _l.trys.push([8, 10, , 11]);\n return [4 /*yield*/, this._api.post(endpoint, init)];\n case 9:\n response = _l.sent();\n return [3 /*break*/, 11];\n case 10:\n err_1 = _l.sent();\n // If the exception is because user intentionally\n // cancelled the request, do not modify the exception\n // so that clients can identify the exception correctly.\n if (this._api.isCancel(err_1)) {\n throw err_1;\n }\n response = {\n data: {},\n errors: [new GraphQLError(err_1.message, null, null, null, null, err_1)],\n };\n return [3 /*break*/, 11];\n case 11:\n errors = response.errors;\n if (errors && errors.length) {\n throw response;\n }\n return [2 /*return*/, response];\n }\n });\n });\n };\n InternalGraphQLAPIClass.prototype.createInstanceIfNotCreated = function () {\n return __awaiter(this, void 0, void 0, function () {\n return __generator(this, function (_a) {\n switch (_a.label) {\n case 0:\n if (!!this._api) return [3 /*break*/, 2];\n return [4 /*yield*/, this.createInstance()];\n case 1:\n _a.sent();\n _a.label = 2;\n case 2: return [2 /*return*/];\n }\n });\n });\n };\n /**\n * Checks to see if an error thrown is from an api request cancellation\n * @param {any} error - Any error\n * @return {boolean} - A boolean indicating if the error was from an api request cancellation\n */\n InternalGraphQLAPIClass.prototype.isCancel = function (error) {\n return this._api.isCancel(error);\n };\n /**\n * Cancels an inflight request. Only applicable for graphql queries and mutations\n * @param {any} request - request to cancel\n * @return {boolean} - A boolean indicating if the request was cancelled\n */\n InternalGraphQLAPIClass.prototype.cancel = function (request, message) {\n return this._api.cancel(request, message);\n };\n /**\n * Check if the request has a corresponding cancel token in the WeakMap.\n * @params request - The request promise\n * @return if the request has a corresponding cancel token.\n */\n InternalGraphQLAPIClass.prototype.hasCancelToken = function (request) {\n return this._api.hasCancelToken(request);\n };\n InternalGraphQLAPIClass.prototype._graphqlSubscribe = function (_a, additionalHeaders, customUserAgentDetails) {\n var query = _a.query, variables = _a.variables, defaultAuthenticationType = _a.authMode, authToken = _a.authToken;\n if (additionalHeaders === void 0) { additionalHeaders = {}; }\n var _b = this._options, region = _b.aws_appsync_region, appSyncGraphqlEndpoint = _b.aws_appsync_graphqlEndpoint, aws_appsync_authenticationType = _b.aws_appsync_authenticationType, apiKey = _b.aws_appsync_apiKey, _c = _b.graphql_headers, graphql_headers = _c === void 0 ? function () { return ({}); } : _c;\n var authenticationType = defaultAuthenticationType || aws_appsync_authenticationType || 'AWS_IAM';\n if (InternalPubSub && typeof InternalPubSub.subscribe === 'function') {\n return InternalPubSub.subscribe('', {\n provider: INTERNAL_AWS_APPSYNC_REALTIME_PUBSUB_PROVIDER,\n appSyncGraphqlEndpoint: appSyncGraphqlEndpoint,\n authenticationType: authenticationType,\n apiKey: apiKey,\n query: print(query),\n region: region,\n variables: variables,\n graphql_headers: graphql_headers,\n additionalHeaders: additionalHeaders,\n authToken: authToken,\n }, customUserAgentDetails);\n }\n else {\n logger.debug('No pubsub module applied for subscription');\n throw new Error('No pubsub module applied for subscription');\n }\n };\n /**\n * @private\n */\n InternalGraphQLAPIClass.prototype._ensureCredentials = function () {\n var _this = this;\n return this.Credentials.get()\n .then(function (credentials) {\n if (!credentials)\n return false;\n var cred = _this.Credentials.shear(credentials);\n logger.debug('set credentials for api', cred);\n return true;\n })\n .catch(function (err) {\n logger.warn('ensure credentials error', err);\n return false;\n });\n };\n return InternalGraphQLAPIClass;\n}());\nexport { InternalGraphQLAPIClass };\nexport var InternalGraphQLAPI = new InternalGraphQLAPIClass(null);\nAmplify.register(InternalGraphQLAPI);\n","import { __assign, __awaiter, __generator, __rest } from \"tslib\";\n// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.\n// SPDX-License-Identifier: Apache-2.0\nimport { RestClient } from './RestClient';\nimport { Amplify, ConsoleLogger as Logger, Credentials, } from '@aws-amplify/core';\nvar logger = new Logger('RestAPI');\n/**\n * Export Cloud Logic APIs\n */\nvar RestAPIClass = /** @class */ (function () {\n /**\n * Initialize Rest API with AWS configuration\n * @param {Object} options - Configuration object for API\n */\n function RestAPIClass(options) {\n this._api = null;\n this.Credentials = Credentials;\n this._options = options;\n logger.debug('API Options', this._options);\n }\n RestAPIClass.prototype.getModuleName = function () {\n return 'RestAPI';\n };\n /**\n * Configure API part with aws configurations\n * @param {Object} config - Configuration of the API\n * @return {Object} - The current configuration\n */\n RestAPIClass.prototype.configure = function (options) {\n var _a = options || {}, _b = _a.API, API = _b === void 0 ? {} : _b, otherOptions = __rest(_a, [\"API\"]);\n var opt = __assign(__assign({}, otherOptions), API);\n logger.debug('configure Rest API', { opt: opt });\n if (opt['aws_project_region']) {\n if (opt['aws_cloud_logic_custom']) {\n var custom = opt['aws_cloud_logic_custom'];\n opt.endpoints =\n typeof custom === 'string' ? JSON.parse(custom) : custom;\n }\n opt = Object.assign({}, opt, {\n region: opt['aws_project_region'],\n header: {},\n });\n }\n if (Array.isArray(opt.endpoints)) {\n // Check if endpoints has custom_headers and validate if is a function\n opt.endpoints.forEach(function (endpoint) {\n if (typeof endpoint.custom_header !== 'undefined' &&\n typeof endpoint.custom_header !== 'function') {\n logger.warn('Rest API ' + endpoint.name + ', custom_header should be a function');\n endpoint.custom_header = undefined;\n }\n });\n }\n else if (this._options && Array.isArray(this._options.endpoints)) {\n opt.endpoints = this._options.endpoints;\n }\n else {\n opt.endpoints = [];\n }\n this._options = Object.assign({}, this._options, opt);\n this.createInstance();\n return this._options;\n };\n /**\n * Create an instance of API for the library\n * @return - A promise of true if Success\n */\n RestAPIClass.prototype.createInstance = function () {\n logger.debug('create Rest API instance');\n this._api = new RestClient(this._options);\n // Share Amplify instance with client for SSR\n this._api.Credentials = this.Credentials;\n return true;\n };\n /**\n * Make a GET request\n * @param {string} apiName - The api name of the request\n * @param {string} path - The path of the request\n * @param {json} [init] - Request extra params\n * @return {Promise} - A promise that resolves to an object with response status and JSON data, if successful.\n */\n RestAPIClass.prototype.get = function (apiName, path, init) {\n try {\n var apiInfo = this.getEndpointInfo(apiName, path);\n var cancellableToken = this._api.getCancellableToken();\n var initParams = Object.assign({}, init);\n initParams.cancellableToken = cancellableToken;\n var responsePromise = this._api.get(apiInfo, initParams);\n this._api.updateRequestToBeCancellable(responsePromise, cancellableToken);\n return responsePromise;\n }\n catch (err) {\n return Promise.reject(err.message);\n }\n };\n /**\n * Make a POST request\n * @param {string} apiName - The api name of the request\n * @param {string} path - The path of the request\n * @param {json} [init] - Request extra params\n * @return {Promise} - A promise that resolves to an object with response status and JSON data, if successful.\n */\n RestAPIClass.prototype.post = function (apiName, path, init) {\n try {\n var apiInfo = this.getEndpointInfo(apiName, path);\n var cancellableToken = this._api.getCancellableToken();\n var initParams = Object.assign({}, init);\n initParams.cancellableToken = cancellableToken;\n var responsePromise = this._api.post(apiInfo, initParams);\n this._api.updateRequestToBeCancellable(responsePromise, cancellableToken);\n return responsePromise;\n }\n catch (err) {\n return Promise.reject(err.message);\n }\n };\n /**\n * Make a PUT request\n * @param {string} apiName - The api name of the request\n * @param {string} path - The path of the request\n * @param {json} [init] - Request extra params\n * @return {Promise} - A promise that resolves to an object with response status and JSON data, if successful.\n */\n RestAPIClass.prototype.put = function (apiName, path, init) {\n try {\n var apiInfo = this.getEndpointInfo(apiName, path);\n var cancellableToken = this._api.getCancellableToken();\n var initParams = Object.assign({}, init);\n initParams.cancellableToken = cancellableToken;\n var responsePromise = this._api.put(apiInfo, initParams);\n this._api.updateRequestToBeCancellable(responsePromise, cancellableToken);\n return responsePromise;\n }\n catch (err) {\n return Promise.reject(err.message);\n }\n };\n /**\n * Make a PATCH request\n * @param {string} apiName - The api name of the request\n * @param {string} path - The path of the request\n * @param {json} [init] - Request extra params\n * @return {Promise} - A promise that resolves to an object with response status and JSON data, if successful.\n */\n RestAPIClass.prototype.patch = function (apiName, path, init) {\n try {\n var apiInfo = this.getEndpointInfo(apiName, path);\n var cancellableToken = this._api.getCancellableToken();\n var initParams = Object.assign({}, init);\n initParams.cancellableToken = cancellableToken;\n var responsePromise = this._api.patch(apiInfo, initParams);\n this._api.updateRequestToBeCancellable(responsePromise, cancellableToken);\n return responsePromise;\n }\n catch (err) {\n return Promise.reject(err.message);\n }\n };\n /**\n * Make a DEL request\n * @param {string} apiName - The api name of the request\n * @param {string} path - The path of the request\n * @param {json} [init] - Request extra params\n * @return {Promise} - A promise that resolves to an object with response status and JSON data, if successful.\n */\n RestAPIClass.prototype.del = function (apiName, path, init) {\n try {\n var apiInfo = this.getEndpointInfo(apiName, path);\n var cancellableToken = this._api.getCancellableToken();\n var initParams = Object.assign({}, init);\n initParams.cancellableToken = cancellableToken;\n var responsePromise = this._api.del(apiInfo, initParams);\n this._api.updateRequestToBeCancellable(responsePromise, cancellableToken);\n return responsePromise;\n }\n catch (err) {\n return Promise.reject(err.message);\n }\n };\n /**\n * Make a HEAD request\n * @param {string} apiName - The api name of the request\n * @param {string} path - The path of the request\n * @param {json} [init] - Request extra params\n * @return {Promise} - A promise that resolves to an object with response status and JSON data, if successful.\n */\n RestAPIClass.prototype.head = function (apiName, path, init) {\n try {\n var apiInfo = this.getEndpointInfo(apiName, path);\n var cancellableToken = this._api.getCancellableToken();\n var initParams = Object.assign({}, init);\n initParams.cancellableToken = cancellableToken;\n var responsePromise = this._api.head(apiInfo, initParams);\n this._api.updateRequestToBeCancellable(responsePromise, cancellableToken);\n return responsePromise;\n }\n catch (err) {\n return Promise.reject(err.message);\n }\n };\n /**\n * Checks to see if an error thrown is from an api request cancellation\n * @param {any} error - Any error\n * @return {boolean} - A boolean indicating if the error was from an api request cancellation\n */\n RestAPIClass.prototype.isCancel = function (error) {\n return this._api.isCancel(error);\n };\n /**\n * Cancels an inflight request\n * @param {any} request - request to cancel\n * @return {boolean} - A boolean indicating if the request was cancelled\n */\n RestAPIClass.prototype.cancel = function (request, message) {\n return this._api.cancel(request, message);\n };\n /**\n * Check if the request has a corresponding cancel token in the WeakMap.\n * @params request - The request promise\n * @return if the request has a corresponding cancel token.\n */\n RestAPIClass.prototype.hasCancelToken = function (request) {\n return this._api.hasCancelToken(request);\n };\n /**\n * Getting endpoint for API\n * @param {string} apiName - The name of the api\n * @return {string} - The endpoint of the api\n */\n RestAPIClass.prototype.endpoint = function (apiName) {\n return __awaiter(this, void 0, void 0, function () {\n return __generator(this, function (_a) {\n return [2 /*return*/, this._api.endpoint(apiName)];\n });\n });\n };\n /**\n * Getting endpoint info for API\n * @param {string} apiName - The name of the api\n * @param {string} path - The path of the api that is going to accessed\n * @return {ApiInfo} - The endpoint information for that api-name\n */\n RestAPIClass.prototype.getEndpointInfo = function (apiName, path) {\n var cloud_logic_array = this._options.endpoints;\n if (!Array.isArray(cloud_logic_array)) {\n throw new Error(\"API category not configured\");\n }\n var apiConfig = cloud_logic_array.find(function (api) { return api.name === apiName; });\n if (!apiConfig) {\n throw new Error(\"API \".concat(apiName, \" does not exist\"));\n }\n var response = {\n endpoint: apiConfig.endpoint + path,\n };\n if (typeof apiConfig.region === 'string') {\n response.region = apiConfig.region;\n }\n else if (typeof this._options.region === 'string') {\n response.region = this._options.region;\n }\n if (typeof apiConfig.service === 'string') {\n response.service = apiConfig.service || 'execute-api';\n }\n else {\n response.service = 'execute-api';\n }\n if (typeof apiConfig.custom_header === 'function') {\n response.custom_header = apiConfig.custom_header;\n }\n else {\n response.custom_header = undefined;\n }\n return response;\n };\n return RestAPIClass;\n}());\nexport { RestAPIClass };\nexport var RestAPI = new RestAPIClass(null);\nAmplify.register(RestAPI);\n","import { __assign, __awaiter, __generator } from \"tslib\";\nimport { InternalGraphQLAPIClass } from '@aws-amplify/api-graphql/internals';\nimport { RestAPIClass } from '@aws-amplify/api-rest';\nimport { Auth } from '@aws-amplify/auth';\nimport { Cache } from '@aws-amplify/cache';\nimport { Amplify, ApiAction, Category, Credentials, ConsoleLogger as Logger, } from '@aws-amplify/core';\nvar logger = new Logger('API');\n/**\n * @deprecated\n * Use RestApi or GraphQLAPI to reduce your application bundle size\n * Export Cloud Logic APIs\n */\nvar InternalAPIClass = /** @class */ (function () {\n /**\n * Initialize API with AWS configuration\n * @param {Object} options - Configuration object for API\n */\n function InternalAPIClass(options) {\n this.Auth = Auth;\n this.Cache = Cache;\n this.Credentials = Credentials;\n this._options = options;\n this._restApi = new RestAPIClass(options);\n this._graphqlApi = new InternalGraphQLAPIClass(options);\n logger.debug('API Options', this._options);\n }\n InternalAPIClass.prototype.getModuleName = function () {\n return 'InternalAPI';\n };\n /**\n * Configure API part with aws configurations\n * @param {Object} config - Configuration of the API\n * @return {Object} - The current configuration\n */\n InternalAPIClass.prototype.configure = function (options) {\n this._options = Object.assign({}, this._options, options);\n // Share Amplify instance with client for SSR\n this._restApi.Credentials = this.Credentials;\n this._graphqlApi.Auth = this.Auth;\n this._graphqlApi.Cache = this.Cache;\n this._graphqlApi.Credentials = this.Credentials;\n var restAPIConfig = this._restApi.configure(this._options);\n var graphQLAPIConfig = this._graphqlApi.configure(this._options);\n return __assign(__assign({}, restAPIConfig), graphQLAPIConfig);\n };\n /**\n * Make a GET request\n * @param apiName - The api name of the request\n * @param path - The path of the request\n * @param [init] - Request extra params\n * @return A promise that resolves to an object with response status and JSON data, if successful.\n */\n InternalAPIClass.prototype.get = function (apiName, path, init) {\n return this._restApi.get(apiName, path, this.getInitWithCustomUserAgentDetails(init, ApiAction.Get));\n };\n /**\n * Make a POST request\n * @param apiName - The api name of the request\n * @param path - The path of the request\n * @param [init] - Request extra params\n * @return A promise that resolves to an object with response status and JSON data, if successful.\n */\n InternalAPIClass.prototype.post = function (apiName, path, init) {\n return this._restApi.post(apiName, path, this.getInitWithCustomUserAgentDetails(init, ApiAction.Post));\n };\n /**\n * Make a PUT request\n * @param apiName - The api name of the request\n * @param path - The path of the request\n * @param [init] - Request extra params\n * @return A promise that resolves to an object with response status and JSON data, if successful.\n */\n InternalAPIClass.prototype.put = function (apiName, path, init) {\n return this._restApi.put(apiName, path, this.getInitWithCustomUserAgentDetails(init, ApiAction.Put));\n };\n /**\n * Make a PATCH request\n * @param apiName - The api name of the request\n * @param path - The path of the request\n * @param [init] - Request extra params\n * @return A promise that resolves to an object with response status and JSON data, if successful.\n */\n InternalAPIClass.prototype.patch = function (apiName, path, init) {\n return this._restApi.patch(apiName, path, this.getInitWithCustomUserAgentDetails(init, ApiAction.Patch));\n };\n /**\n * Make a DEL request\n * @param apiName - The api name of the request\n * @param path - The path of the request\n * @param [init] - Request extra params\n * @return A promise that resolves to an object with response status and JSON data, if successful.\n */\n InternalAPIClass.prototype.del = function (apiName, path, init) {\n return this._restApi.del(apiName, path, this.getInitWithCustomUserAgentDetails(init, ApiAction.Del));\n };\n /**\n * Make a HEAD request\n * @param apiName - The api name of the request\n * @param path - The path of the request\n * @param [init] - Request extra params\n * @return A promise that resolves to an object with response status and JSON data, if successful.\n */\n InternalAPIClass.prototype.head = function (apiName, path, init) {\n return this._restApi.head(apiName, path, this.getInitWithCustomUserAgentDetails(init, ApiAction.Head));\n };\n /**\n * Checks to see if an error thrown is from an api request cancellation\n * @param error - Any error\n * @return If the error was from an api request cancellation\n */\n InternalAPIClass.prototype.isCancel = function (error) {\n return this._restApi.isCancel(error);\n };\n /**\n * Cancels an inflight request for either a GraphQL request or a Rest API request.\n * @param request - request to cancel\n * @param [message] - custom error message\n * @return If the request was cancelled\n */\n InternalAPIClass.prototype.cancel = function (request, message) {\n if (this._restApi.hasCancelToken(request)) {\n return this._restApi.cancel(request, message);\n }\n else if (this._graphqlApi.hasCancelToken(request)) {\n return this._graphqlApi.cancel(request, message);\n }\n return false;\n };\n InternalAPIClass.prototype.getInitWithCustomUserAgentDetails = function (init, action) {\n var customUserAgentDetails = {\n category: Category.API,\n action: action,\n };\n var initParams = __assign(__assign({}, init), { customUserAgentDetails: customUserAgentDetails });\n return initParams;\n };\n /**\n * Getting endpoint for API\n * @param apiName - The name of the api\n * @return The endpoint of the api\n */\n InternalAPIClass.prototype.endpoint = function (apiName) {\n return __awaiter(this, void 0, void 0, function () {\n return __generator(this, function (_a) {\n return [2 /*return*/, this._restApi.endpoint(apiName)];\n });\n });\n };\n /**\n * to get the operation type\n * @param operation\n */\n InternalAPIClass.prototype.getGraphqlOperationType = function (operation) {\n return this._graphqlApi.getGraphqlOperationType(operation);\n };\n InternalAPIClass.prototype.graphql = function (options, additionalHeaders, customUserAgentDetails) {\n var apiUserAgentDetails = __assign({ category: Category.API, action: ApiAction.GraphQl }, customUserAgentDetails);\n return this._graphqlApi.graphql(options, additionalHeaders, apiUserAgentDetails);\n };\n return InternalAPIClass;\n}());\nexport { InternalAPIClass };\nexport var InternalAPI = new InternalAPIClass(null);\nAmplify.register(InternalAPI);\n","import { __extends } from \"tslib\";\nimport { Amplify, ConsoleLogger as Logger } from '@aws-amplify/core';\nimport { InternalAPIClass } from './internals/InternalAPI';\nvar logger = new Logger('API');\n/**\n * @deprecated\n * Use RestApi or GraphQLAPI to reduce your application bundle size\n * Export Cloud Logic APIs\n */\nvar APIClass = /** @class */ (function (_super) {\n __extends(APIClass, _super);\n function APIClass() {\n return _super !== null && _super.apply(this, arguments) || this;\n }\n APIClass.prototype.getModuleName = function () {\n return 'API';\n };\n APIClass.prototype.graphql = function (options, additionalHeaders) {\n return _super.prototype.graphql.call(this, options, additionalHeaders);\n };\n return APIClass;\n}(InternalAPIClass));\nexport { APIClass };\nexport var API = new APIClass(null);\nAmplify.register(API);\n","/*! *****************************************************************************\r\nCopyright (c) Microsoft Corporation.\r\n\r\nPermission to use, copy, modify, and/or distribute this software for any\r\npurpose with or without fee is hereby granted.\r\n\r\nTHE SOFTWARE IS PROVIDED \"AS IS\" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH\r\nREGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY\r\nAND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,\r\nINDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM\r\nLOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR\r\nOTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR\r\nPERFORMANCE OF THIS SOFTWARE.\r\n***************************************************************************** */\r\n/* global Reflect, Promise */\r\n\r\nvar extendStatics = function(d, b) {\r\n extendStatics = Object.setPrototypeOf ||\r\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\r\n function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\r\n return extendStatics(d, b);\r\n};\r\n\r\nexport function __extends(d, b) {\r\n extendStatics(d, b);\r\n function __() { this.constructor = d; }\r\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\r\n}\r\n\r\nexport var __assign = function() {\r\n __assign = Object.assign || function __assign(t) {\r\n for (var s, i = 1, n = arguments.length; i < n; i++) {\r\n s = arguments[i];\r\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p)) t[p] = s[p];\r\n }\r\n return t;\r\n }\r\n return __assign.apply(this, arguments);\r\n}\r\n\r\nexport function __rest(s, e) {\r\n var t = {};\r\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)\r\n t[p] = s[p];\r\n if (s != null && typeof Object.getOwnPropertySymbols === \"function\")\r\n for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {\r\n if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))\r\n t[p[i]] = s[p[i]];\r\n }\r\n return t;\r\n}\r\n\r\nexport function __decorate(decorators, target, key, desc) {\r\n var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;\r\n if (typeof Reflect === \"object\" && typeof Reflect.decorate === \"function\") r = Reflect.decorate(decorators, target, key, desc);\r\n else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;\r\n return c > 3 && r && Object.defineProperty(target, key, r), r;\r\n}\r\n\r\nexport function __param(paramIndex, decorator) {\r\n return function (target, key) { decorator(target, key, paramIndex); }\r\n}\r\n\r\nexport function __metadata(metadataKey, metadataValue) {\r\n if (typeof Reflect === \"object\" && typeof Reflect.metadata === \"function\") return Reflect.metadata(metadataKey, metadataValue);\r\n}\r\n\r\nexport function __awaiter(thisArg, _arguments, P, generator) {\r\n function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }\r\n return new (P || (P = Promise))(function (resolve, reject) {\r\n function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\r\n function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\r\n function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }\r\n step((generator = generator.apply(thisArg, _arguments || [])).next());\r\n });\r\n}\r\n\r\nexport function __generator(thisArg, body) {\r\n var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;\r\n return g = { next: verb(0), \"throw\": verb(1), \"return\": verb(2) }, typeof Symbol === \"function\" && (g[Symbol.iterator] = function() { return this; }), g;\r\n function verb(n) { return function (v) { return step([n, v]); }; }\r\n function step(op) {\r\n if (f) throw new TypeError(\"Generator is already executing.\");\r\n while (_) try {\r\n if (f = 1, y && (t = op[0] & 2 ? y[\"return\"] : op[0] ? y[\"throw\"] || ((t = y[\"return\"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;\r\n if (y = 0, t) op = [op[0] & 2, t.value];\r\n switch (op[0]) {\r\n case 0: case 1: t = op; break;\r\n case 4: _.label++; return { value: op[1], done: false };\r\n case 5: _.label++; y = op[1]; op = [0]; continue;\r\n case 7: op = _.ops.pop(); _.trys.pop(); continue;\r\n default:\r\n if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }\r\n if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }\r\n if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }\r\n if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }\r\n if (t[2]) _.ops.pop();\r\n _.trys.pop(); continue;\r\n }\r\n op = body.call(thisArg, _);\r\n } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }\r\n if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };\r\n }\r\n}\r\n\r\nexport function __createBinding(o, m, k, k2) {\r\n if (k2 === undefined) k2 = k;\r\n o[k2] = m[k];\r\n}\r\n\r\nexport function __exportStar(m, exports) {\r\n for (var p in m) if (p !== \"default\" && !exports.hasOwnProperty(p)) exports[p] = m[p];\r\n}\r\n\r\nexport function __values(o) {\r\n var s = typeof Symbol === \"function\" && Symbol.iterator, m = s && o[s], i = 0;\r\n if (m) return m.call(o);\r\n if (o && typeof o.length === \"number\") return {\r\n next: function () {\r\n if (o && i >= o.length) o = void 0;\r\n return { value: o && o[i++], done: !o };\r\n }\r\n };\r\n throw new TypeError(s ? \"Object is not iterable.\" : \"Symbol.iterator is not defined.\");\r\n}\r\n\r\nexport function __read(o, n) {\r\n var m = typeof Symbol === \"function\" && o[Symbol.iterator];\r\n if (!m) return o;\r\n var i = m.call(o), r, ar = [], e;\r\n try {\r\n while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);\r\n }\r\n catch (error) { e = { error: error }; }\r\n finally {\r\n try {\r\n if (r && !r.done && (m = i[\"return\"])) m.call(i);\r\n }\r\n finally { if (e) throw e.error; }\r\n }\r\n return ar;\r\n}\r\n\r\nexport function __spread() {\r\n for (var ar = [], i = 0; i < arguments.length; i++)\r\n ar = ar.concat(__read(arguments[i]));\r\n return ar;\r\n}\r\n\r\nexport function __spreadArrays() {\r\n for (var s = 0, i = 0, il = arguments.length; i < il; i++) s += arguments[i].length;\r\n for (var r = Array(s), k = 0, i = 0; i < il; i++)\r\n for (var a = arguments[i], j = 0, jl = a.length; j < jl; j++, k++)\r\n r[k] = a[j];\r\n return r;\r\n};\r\n\r\nexport function __await(v) {\r\n return this instanceof __await ? (this.v = v, this) : new __await(v);\r\n}\r\n\r\nexport function __asyncGenerator(thisArg, _arguments, generator) {\r\n if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n var g = generator.apply(thisArg, _arguments || []), i, q = [];\r\n return i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i;\r\n function verb(n) { if (g[n]) i[n] = function (v) { return new Promise(function (a, b) { q.push([n, v, a, b]) > 1 || resume(n, v); }); }; }\r\n function resume(n, v) { try { step(g[n](v)); } catch (e) { settle(q[0][3], e); } }\r\n function step(r) { r.value instanceof __await ? Promise.resolve(r.value.v).then(fulfill, reject) : settle(q[0][2], r); }\r\n function fulfill(value) { resume(\"next\", value); }\r\n function reject(value) { resume(\"throw\", value); }\r\n function settle(f, v) { if (f(v), q.shift(), q.length) resume(q[0][0], q[0][1]); }\r\n}\r\n\r\nexport function __asyncDelegator(o) {\r\n var i, p;\r\n return i = {}, verb(\"next\"), verb(\"throw\", function (e) { throw e; }), verb(\"return\"), i[Symbol.iterator] = function () { return this; }, i;\r\n function verb(n, f) { i[n] = o[n] ? function (v) { return (p = !p) ? { value: __await(o[n](v)), done: n === \"return\" } : f ? f(v) : v; } : f; }\r\n}\r\n\r\nexport function __asyncValues(o) {\r\n if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n var m = o[Symbol.asyncIterator], i;\r\n return m ? m.call(o) : (o = typeof __values === \"function\" ? __values(o) : o[Symbol.iterator](), i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i);\r\n function verb(n) { i[n] = o[n] && function (v) { return new Promise(function (resolve, reject) { v = o[n](v), settle(resolve, reject, v.done, v.value); }); }; }\r\n function settle(resolve, reject, d, v) { Promise.resolve(v).then(function(v) { resolve({ value: v, done: d }); }, reject); }\r\n}\r\n\r\nexport function __makeTemplateObject(cooked, raw) {\r\n if (Object.defineProperty) { Object.defineProperty(cooked, \"raw\", { value: raw }); } else { cooked.raw = raw; }\r\n return cooked;\r\n};\r\n\r\nexport function __importStar(mod) {\r\n if (mod && mod.__esModule) return mod;\r\n var result = {};\r\n if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];\r\n result.default = mod;\r\n return result;\r\n}\r\n\r\nexport function __importDefault(mod) {\r\n return (mod && mod.__esModule) ? mod : { default: mod };\r\n}\r\n\r\nexport function __classPrivateFieldGet(receiver, privateMap) {\r\n if (!privateMap.has(receiver)) {\r\n throw new TypeError(\"attempted to get private field on non-instance\");\r\n }\r\n return privateMap.get(receiver);\r\n}\r\n\r\nexport function __classPrivateFieldSet(receiver, privateMap, value) {\r\n if (!privateMap.has(receiver)) {\r\n throw new TypeError(\"attempted to set private field on non-instance\");\r\n }\r\n privateMap.set(receiver, value);\r\n return value;\r\n}\r\n","// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.\n// SPDX-License-Identifier: Apache-2.0\n\nimport {\n\tICookieStorageData,\n\tICognitoStorage,\n} from 'amazon-cognito-identity-js';\n\n/**\n * Parameters for user sign up\n */\nexport interface SignUpParams {\n\tusername: string;\n\tpassword: string;\n\tattributes?: object;\n\tvalidationData?: { [key: string]: any };\n\tclientMetadata?: { [key: string]: string };\n\tautoSignIn?: AutoSignInOptions;\n}\n\nexport interface AuthCache {\n\tsetItem();\n\tgetItem();\n\tremoveItem();\n}\n\n/**\n * Auth instance options\n */\nexport interface AuthOptions {\n\tuserPoolId?: string;\n\tuserPoolWebClientId?: string;\n\tidentityPoolId?: string;\n\tregion?: string;\n\tmandatorySignIn?: boolean;\n\tcookieStorage?: ICookieStorageData;\n\toauth?: OAuthOpts;\n\trefreshHandlers?: object;\n\tstorage?: ICognitoStorage;\n\tauthenticationFlowType?: string;\n\tidentityPoolRegion?: string;\n\tclientMetadata?: any;\n\tendpoint?: string;\n\tsignUpVerificationMethod?: 'code' | 'link';\n}\n\nexport enum CognitoHostedUIIdentityProvider {\n\tCognito = 'COGNITO',\n\tGoogle = 'Google',\n\tFacebook = 'Facebook',\n\tAmazon = 'LoginWithAmazon',\n\tApple = 'SignInWithApple',\n}\n\nexport type LegacyProvider =\n\t| 'google'\n\t| 'facebook'\n\t| 'amazon'\n\t| 'developer'\n\t| string;\n\nexport type FederatedSignInOptions = {\n\tprovider: CognitoHostedUIIdentityProvider;\n\tcustomState?: string;\n};\n\nexport type FederatedSignInOptionsCustom = {\n\tcustomProvider: string;\n\tcustomState?: string;\n};\n\nexport function isFederatedSignInOptions(\n\tobj: any\n): obj is FederatedSignInOptions {\n\tconst keys: (keyof FederatedSignInOptions)[] = ['provider'];\n\treturn obj && !!keys.find(k => obj.hasOwnProperty(k));\n}\n\nexport function isFederatedSignInOptionsCustom(\n\tobj: any\n): obj is FederatedSignInOptionsCustom {\n\tconst keys: (keyof FederatedSignInOptionsCustom)[] = ['customProvider'];\n\treturn obj && !!keys.find(k => obj.hasOwnProperty(k));\n}\n\nexport function hasCustomState(obj: any): boolean {\n\tconst keys: (keyof (\n\t\t| FederatedSignInOptions\n\t\t| FederatedSignInOptionsCustom\n\t))[] = ['customState'];\n\treturn obj && !!keys.find(k => obj.hasOwnProperty(k));\n}\n\n/**\n * Details for multi-factor authentication\n */\nexport interface MfaRequiredDetails {\n\tchallengeName: any;\n\tchallengeParameters: any;\n}\n\n/**\n * interface for federatedResponse\n */\nexport interface FederatedResponse {\n\t// access token\n\ttoken: string;\n\t// identity id\n\tidentity_id?: string;\n\t// the universal time when token expired\n\texpires_at: number;\n}\n\n/**\n * interface for federatedUser\n */\nexport interface FederatedUser {\n\tname: string;\n\temail?: string;\n\tpicture?: string;\n}\n\nexport interface AwsCognitoOAuthOpts {\n\tdomain: string;\n\tscope: Array;\n\tredirectSignIn: string;\n\tredirectSignOut: string;\n\tresponseType: string;\n\toptions?: object;\n\turlOpener?: (url: string, redirectUrl: string) => Promise;\n}\n\nexport function isCognitoHostedOpts(\n\toauth: OAuthOpts\n): oauth is AwsCognitoOAuthOpts {\n\treturn (oauth).redirectSignIn !== undefined;\n}\n\nexport interface Auth0OAuthOpts {\n\tdomain: string;\n\tclientID: string;\n\tscope: string;\n\tredirectUri: string;\n\taudience: string;\n\tresponseType: string;\n\treturnTo: string;\n\turlOpener?: (url: string, redirectUrl: string) => Promise;\n}\n\n// Replacing to fix typings\n// export interface OAuth {\n// awsCognito?: awsCognitoOAuthOpts,\n// auth0?: any\n// }\n\nexport type OAuthOpts = AwsCognitoOAuthOpts | Auth0OAuthOpts;\n\nexport interface ConfirmSignUpOptions {\n\tforceAliasCreation?: boolean;\n\tclientMetadata?: ClientMetaData;\n}\n\nexport interface SignOutOpts {\n\tglobal?: boolean;\n}\n\nexport interface CurrentUserOpts {\n\tbypassCache: boolean;\n}\n\nexport interface GetPreferredMFAOpts {\n\tbypassCache: boolean;\n}\n\nexport type UsernamePasswordOpts = {\n\tusername: string;\n\tpassword: string;\n\tvalidationData?: { [key: string]: any };\n};\n\nexport enum AuthErrorTypes {\n\tNoConfig = 'noConfig',\n\tMissingAuthConfig = 'missingAuthConfig',\n\tEmptyUsername = 'emptyUsername',\n\tInvalidUsername = 'invalidUsername',\n\tEmptyPassword = 'emptyPassword',\n\tEmptyCode = 'emptyCode',\n\tSignUpError = 'signUpError',\n\tNoMFA = 'noMFA',\n\tInvalidMFA = 'invalidMFA',\n\tEmptyChallengeResponse = 'emptyChallengeResponse',\n\tNoUserSession = 'noUserSession',\n\tDefault = 'default',\n\tDeviceConfig = 'deviceConfig',\n\tNetworkError = 'networkError',\n\tAutoSignInError = 'autoSignInError',\n}\n\nexport type AuthErrorMessages = { [key in AuthErrorTypes]: AuthErrorMessage };\n\nexport interface AuthErrorMessage {\n\tmessage: string;\n\tlog?: string;\n}\n\n// We can extend this in the future if needed\nexport type SignInOpts = UsernamePasswordOpts;\n\nexport type ClientMetaData =\n\t| {\n\t\t\t[key: string]: string;\n\t }\n\t| undefined;\n\nexport function isUsernamePasswordOpts(obj: any): obj is UsernamePasswordOpts {\n\treturn !!(obj as UsernamePasswordOpts).username;\n}\n\nexport interface IAuthDevice {\n\tid: string;\n\tname: string;\n}\n\nexport interface AutoSignInOptions {\n\tenabled: boolean;\n\tclientMetaData?: ClientMetaData;\n\tvalidationData?: { [key: string]: any };\n}\n\nexport enum GRAPHQL_AUTH_MODE {\n\tAPI_KEY = 'API_KEY',\n\tAWS_IAM = 'AWS_IAM',\n\tOPENID_CONNECT = 'OPENID_CONNECT',\n\tAMAZON_COGNITO_USER_POOLS = 'AMAZON_COGNITO_USER_POOLS',\n\tAWS_LAMBDA = 'AWS_LAMBDA',\n}\n","import * as cookie from 'cookie';\r\nexport function hasDocumentCookie() {\r\n // Can we get/set cookies on document.cookie?\r\n return typeof document === 'object' && typeof document.cookie === 'string';\r\n}\r\nexport function cleanCookies() {\r\n document.cookie.split(';').forEach(function (c) {\r\n document.cookie = c\r\n .replace(/^ +/, '')\r\n .replace(/=.*/, '=;expires=' + new Date().toUTCString() + ';path=/');\r\n });\r\n}\r\nexport function parseCookies(cookies, options) {\r\n if (typeof cookies === 'string') {\r\n return cookie.parse(cookies, options);\r\n }\r\n else if (typeof cookies === 'object' && cookies !== null) {\r\n return cookies;\r\n }\r\n else {\r\n return {};\r\n }\r\n}\r\nexport function isParsingCookie(value, doNotParse) {\r\n if (typeof doNotParse === 'undefined') {\r\n // We guess if the cookie start with { or [, it has been serialized\r\n doNotParse =\r\n !value || (value[0] !== '{' && value[0] !== '[' && value[0] !== '\"');\r\n }\r\n return !doNotParse;\r\n}\r\nexport function readCookie(value, options) {\r\n if (options === void 0) { options = {}; }\r\n var cleanValue = cleanupCookieValue(value);\r\n if (isParsingCookie(cleanValue, options.doNotParse)) {\r\n try {\r\n return JSON.parse(cleanValue);\r\n }\r\n catch (e) {\r\n // At least we tried\r\n }\r\n }\r\n // Ignore clean value if we failed the deserialization\r\n // It is not relevant anymore to trim those values\r\n return value;\r\n}\r\nfunction cleanupCookieValue(value) {\r\n // express prepend j: before serializing a cookie\r\n if (value && value[0] === 'j' && value[1] === ':') {\r\n return value.substr(2);\r\n }\r\n return value;\r\n}\r\n","var __assign = (this && this.__assign) || function () {\r\n __assign = Object.assign || function(t) {\r\n for (var s, i = 1, n = arguments.length; i < n; i++) {\r\n s = arguments[i];\r\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))\r\n t[p] = s[p];\r\n }\r\n return t;\r\n };\r\n return __assign.apply(this, arguments);\r\n};\r\nimport * as cookie from 'cookie';\r\nimport { hasDocumentCookie, parseCookies, readCookie } from './utils';\r\nvar Cookies = /** @class */ (function () {\r\n function Cookies(cookies, options) {\r\n var _this = this;\r\n this.changeListeners = [];\r\n this.HAS_DOCUMENT_COOKIE = false;\r\n this.cookies = parseCookies(cookies, options);\r\n new Promise(function () {\r\n _this.HAS_DOCUMENT_COOKIE = hasDocumentCookie();\r\n }).catch(function () { });\r\n }\r\n Cookies.prototype._updateBrowserValues = function (parseOptions) {\r\n if (!this.HAS_DOCUMENT_COOKIE) {\r\n return;\r\n }\r\n this.cookies = cookie.parse(document.cookie, parseOptions);\r\n };\r\n Cookies.prototype._emitChange = function (params) {\r\n for (var i = 0; i < this.changeListeners.length; ++i) {\r\n this.changeListeners[i](params);\r\n }\r\n };\r\n Cookies.prototype.get = function (name, options, parseOptions) {\r\n if (options === void 0) { options = {}; }\r\n this._updateBrowserValues(parseOptions);\r\n return readCookie(this.cookies[name], options);\r\n };\r\n Cookies.prototype.getAll = function (options, parseOptions) {\r\n if (options === void 0) { options = {}; }\r\n this._updateBrowserValues(parseOptions);\r\n var result = {};\r\n for (var name_1 in this.cookies) {\r\n result[name_1] = readCookie(this.cookies[name_1], options);\r\n }\r\n return result;\r\n };\r\n Cookies.prototype.set = function (name, value, options) {\r\n var _a;\r\n if (typeof value === 'object') {\r\n value = JSON.stringify(value);\r\n }\r\n this.cookies = __assign(__assign({}, this.cookies), (_a = {}, _a[name] = value, _a));\r\n if (this.HAS_DOCUMENT_COOKIE) {\r\n document.cookie = cookie.serialize(name, value, options);\r\n }\r\n this._emitChange({ name: name, value: value, options: options });\r\n };\r\n Cookies.prototype.remove = function (name, options) {\r\n var finalOptions = (options = __assign(__assign({}, options), { expires: new Date(1970, 1, 1, 0, 0, 1), maxAge: 0 }));\r\n this.cookies = __assign({}, this.cookies);\r\n delete this.cookies[name];\r\n if (this.HAS_DOCUMENT_COOKIE) {\r\n document.cookie = cookie.serialize(name, '', finalOptions);\r\n }\r\n this._emitChange({ name: name, value: undefined, options: options });\r\n };\r\n Cookies.prototype.addChangeListener = function (callback) {\r\n this.changeListeners.push(callback);\r\n };\r\n Cookies.prototype.removeChangeListener = function (callback) {\r\n var idx = this.changeListeners.indexOf(callback);\r\n if (idx >= 0) {\r\n this.changeListeners.splice(idx, 1);\r\n }\r\n };\r\n return Cookies;\r\n}());\r\nexport default Cookies;\r\n","import Cookies from './Cookies';\r\nexport default Cookies;\r\n","var __assign = (this && this.__assign) || function () {\n __assign = Object.assign || function(t) {\n for (var s, i = 1, n = arguments.length; i < n; i++) {\n s = arguments[i];\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))\n t[p] = s[p];\n }\n return t;\n };\n return __assign.apply(this, arguments);\n};\n// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.\n// SPDX-License-Identifier: Apache-2.0\nimport Cookies from 'universal-cookie';\nimport { browserOrNode } from '../JS';\nvar isBrowser = browserOrNode().isBrowser;\nvar ONE_YEAR_IN_MS = 365 * 24 * 60 * 60 * 1000;\nvar UniversalStorage = /** @class */ (function () {\n function UniversalStorage(context) {\n if (context === void 0) { context = {}; }\n this.cookies = new Cookies();\n this.store = isBrowser ? window.localStorage : Object.create(null);\n this.cookies = context.req\n ? new Cookies(decodeURIComponent(context.req.headers.cookie))\n : new Cookies();\n Object.assign(this.store, this.cookies.getAll());\n }\n Object.defineProperty(UniversalStorage.prototype, \"length\", {\n get: function () {\n return Object.entries(this.store).length;\n },\n enumerable: false,\n configurable: true\n });\n UniversalStorage.prototype.clear = function () {\n var _this = this;\n Array.from(new Array(this.length))\n .map(function (_, i) { return _this.key(i); })\n .forEach(function (key) { return _this.removeItem(key); });\n };\n UniversalStorage.prototype.getItem = function (key) {\n return this.getLocalItem(key);\n };\n UniversalStorage.prototype.getLocalItem = function (key) {\n return Object.prototype.hasOwnProperty.call(this.store, key)\n ? this.store[key]\n : null;\n };\n UniversalStorage.prototype.getUniversalItem = function (key) {\n return this.cookies.get(key);\n };\n UniversalStorage.prototype.key = function (index) {\n return Object.keys(this.store)[index];\n };\n UniversalStorage.prototype.removeItem = function (key) {\n this.removeLocalItem(key);\n this.removeUniversalItem(key);\n };\n UniversalStorage.prototype.removeLocalItem = function (key) {\n delete this.store[key];\n };\n UniversalStorage.prototype.removeUniversalItem = function (key) {\n this.cookies.remove(key, {\n path: '/',\n });\n };\n UniversalStorage.prototype.setItem = function (key, value) {\n this.setLocalItem(key, value);\n // keys take the shape:\n // 1. `${ProviderPrefix}.${userPoolClientId}.${username}.${tokenType}\n // 2. `${ProviderPrefix}.${userPoolClientId}.LastAuthUser\n var tokenType = key.split('.').pop();\n var sessionTokenTypes = [\n 'LastAuthUser',\n 'accessToken',\n // refreshToken originates on the client, but SSR pages won't fail when this expires\n // Note: the new `accessToken` will also be refreshed on the client (since Amplify doesn't set server-side cookies)\n 'refreshToken',\n // Required for CognitoUserSession\n 'idToken',\n // userData is used when `Auth.currentAuthenticatedUser({ bypassCache: false })`.\n // Can be persisted to speed up calls to `Auth.currentAuthenticatedUser()`\n // 'userData',\n // Ignoring clockDrift on the server for now, but needs testing\n // 'clockDrift',\n ];\n if (sessionTokenTypes.includes(tokenType !== null && tokenType !== void 0 ? tokenType : '')) {\n this.setUniversalItem(key, value, {\n expires: new Date(Date.now() + ONE_YEAR_IN_MS),\n });\n }\n };\n UniversalStorage.prototype.setLocalItem = function (key, value) {\n this.store[key] = value;\n };\n UniversalStorage.prototype.setUniversalItem = function (key, value, options) {\n if (options === void 0) { options = {}; }\n this.cookies.set(key, value, __assign(__assign({}, options), { path: '/', \n // `httpOnly` cannot be set via JavaScript: https://developer.mozilla.org/en-US/docs/Web/HTTP/Cookies#JavaScript_access_using_Document.cookie\n sameSite: true, \n // Allow unsecure requests to http://localhost:3000/ when in development.\n secure: isBrowser && window.location.hostname === 'localhost' ? false : true }));\n };\n return UniversalStorage;\n}());\nexport { UniversalStorage };\n","var crypto;\n\n// Native crypto from window (Browser)\nif (typeof window !== 'undefined' && window.crypto) {\n crypto = window.crypto;\n}\n\n// Native (experimental IE 11) crypto from window (Browser)\nif (!crypto && typeof window !== 'undefined' && window.msCrypto) {\n crypto = window.msCrypto;\n}\n\n/*\n * Cryptographically secure pseudorandom number generator\n * As Math.random() is cryptographically not safe to use\n */\nexport default function cryptoSecureRandomInt() {\n if (crypto) {\n // Use getRandomValues method (Browser)\n if (typeof crypto.getRandomValues === 'function') {\n try {\n return crypto.getRandomValues(new Uint32Array(1))[0];\n } catch (err) {}\n }\n\n // Use randomBytes method (NodeJS)\n if (typeof crypto.randomBytes === 'function') {\n try {\n return crypto.randomBytes(4).readInt32LE();\n } catch (err) {}\n }\n }\n throw new Error('Native crypto module could not be used to get secure random number.');\n}","/*!\n * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.\n * SPDX-License-Identifier: Apache-2.0\n */\n/** @class */\nvar AuthenticationDetails = /*#__PURE__*/function () {\n /**\n * Constructs a new AuthenticationDetails object\n * @param {object=} data Creation options.\n * @param {string} data.Username User being authenticated.\n * @param {string} data.Password Plain-text password to authenticate with.\n * @param {(AttributeArg[])?} data.ValidationData Application extra metadata.\n * @param {(AttributeArg[])?} data.AuthParamaters Authentication paramaters for custom auth.\n */\n function AuthenticationDetails(data) {\n var _ref = data || {},\n ValidationData = _ref.ValidationData,\n Username = _ref.Username,\n Password = _ref.Password,\n AuthParameters = _ref.AuthParameters,\n ClientMetadata = _ref.ClientMetadata;\n this.validationData = ValidationData || {};\n this.authParameters = AuthParameters || {};\n this.clientMetadata = ClientMetadata || {};\n this.username = Username;\n this.password = Password;\n }\n\n /**\n * @returns {string} the record's username\n */\n var _proto = AuthenticationDetails.prototype;\n _proto.getUsername = function getUsername() {\n return this.username;\n }\n\n /**\n * @returns {string} the record's password\n */;\n _proto.getPassword = function getPassword() {\n return this.password;\n }\n\n /**\n * @returns {Array} the record's validationData\n */;\n _proto.getValidationData = function getValidationData() {\n return this.validationData;\n }\n\n /**\n * @returns {Array} the record's authParameters\n */;\n _proto.getAuthParameters = function getAuthParameters() {\n return this.authParameters;\n }\n\n /**\n * @returns {ClientMetadata} the clientMetadata for a Lambda trigger\n */;\n _proto.getClientMetadata = function getClientMetadata() {\n return this.clientMetadata;\n };\n return AuthenticationDetails;\n}();\nexport { AuthenticationDetails as default };","import cryptoSecureRandomInt from './cryptoSecureRandomInt';\n\n/**\n * Hex encoding strategy.\n * Converts a word array to a hex string.\n * @param {WordArray} wordArray The word array.\n * @return {string} The hex string.\n * @static\n */\nfunction hexStringify(wordArray) {\n // Shortcuts\n var words = wordArray.words;\n var sigBytes = wordArray.sigBytes;\n\n // Convert\n var hexChars = [];\n for (var i = 0; i < sigBytes; i++) {\n var bite = words[i >>> 2] >>> 24 - i % 4 * 8 & 0xff;\n hexChars.push((bite >>> 4).toString(16));\n hexChars.push((bite & 0x0f).toString(16));\n }\n return hexChars.join('');\n}\nvar WordArray = /*#__PURE__*/function () {\n function WordArray(words, sigBytes) {\n words = this.words = words || [];\n if (sigBytes != undefined) {\n this.sigBytes = sigBytes;\n } else {\n this.sigBytes = words.length * 4;\n }\n }\n var _proto = WordArray.prototype;\n _proto.random = function random(nBytes) {\n var words = [];\n for (var i = 0; i < nBytes; i += 4) {\n words.push(cryptoSecureRandomInt());\n }\n return new WordArray(words, nBytes);\n };\n _proto.toString = function toString() {\n return hexStringify(this);\n };\n return WordArray;\n}();\nexport { WordArray as default };","// A small implementation of BigInteger based on http://www-cs-students.stanford.edu/~tjw/jsbn/\n//\n// All public methods have been removed except the following:\n// new BigInteger(a, b) (only radix 2, 4, 8, 16 and 32 supported)\n// toString (only radix 2, 4, 8, 16 and 32 supported)\n// negate\n// abs\n// compareTo\n// bitLength\n// mod\n// equals\n// add\n// subtract\n// multiply\n// divide\n// modPow\n\nexport default BigInteger;\n\n/*\n * Copyright (c) 2003-2005 Tom Wu\n * All Rights Reserved.\n *\n * Permission is hereby granted, free of charge, to any person obtaining\n * a copy of this software and associated documentation files (the\n * \"Software\"), to deal in the Software without restriction, including\n * without limitation the rights to use, copy, modify, merge, publish,\n * distribute, sublicense, and/or sell copies of the Software, and to\n * permit persons to whom the Software is furnished to do so, subject to\n * the following conditions:\n *\n * The above copyright notice and this permission notice shall be\n * included in all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS-IS\" AND WITHOUT WARRANTY OF ANY KIND,\n * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY\n * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.\n *\n * IN NO EVENT SHALL TOM WU BE LIABLE FOR ANY SPECIAL, INCIDENTAL,\n * INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, OR ANY DAMAGES WHATSOEVER\n * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER OR NOT ADVISED OF\n * THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF LIABILITY, ARISING OUT\n * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.\n *\n * In addition, the following condition applies:\n *\n * All redistributions must retain an intact copy of this copyright notice\n * and disclaimer.\n */\n\n// (public) Constructor\nfunction BigInteger(a, b) {\n if (a != null) this.fromString(a, b);\n}\n\n// return new, unset BigInteger\nfunction nbi() {\n return new BigInteger(null);\n}\n\n// Bits per digit\nvar dbits;\n\n// JavaScript engine analysis\nvar canary = 0xdeadbeefcafe;\nvar j_lm = (canary & 0xffffff) == 0xefcafe;\n\n// am: Compute w_j += (x*this_i), propagate carries,\n// c is initial carry, returns final carry.\n// c < 3*dvalue, x < 2*dvalue, this_i < dvalue\n// We need to select the fastest one that works in this environment.\n\n// am1: use a single mult and divide to get the high bits,\n// max digit bits should be 26 because\n// max internal value = 2*dvalue^2-2*dvalue (< 2^53)\nfunction am1(i, x, w, j, c, n) {\n while (--n >= 0) {\n var v = x * this[i++] + w[j] + c;\n c = Math.floor(v / 0x4000000);\n w[j++] = v & 0x3ffffff;\n }\n return c;\n}\n// am2 avoids a big mult-and-extract completely.\n// Max digit bits should be <= 30 because we do bitwise ops\n// on values up to 2*hdvalue^2-hdvalue-1 (< 2^31)\nfunction am2(i, x, w, j, c, n) {\n var xl = x & 0x7fff,\n xh = x >> 15;\n while (--n >= 0) {\n var l = this[i] & 0x7fff;\n var h = this[i++] >> 15;\n var m = xh * l + h * xl;\n l = xl * l + ((m & 0x7fff) << 15) + w[j] + (c & 0x3fffffff);\n c = (l >>> 30) + (m >>> 15) + xh * h + (c >>> 30);\n w[j++] = l & 0x3fffffff;\n }\n return c;\n}\n// Alternately, set max digit bits to 28 since some\n// browsers slow down when dealing with 32-bit numbers.\nfunction am3(i, x, w, j, c, n) {\n var xl = x & 0x3fff,\n xh = x >> 14;\n while (--n >= 0) {\n var l = this[i] & 0x3fff;\n var h = this[i++] >> 14;\n var m = xh * l + h * xl;\n l = xl * l + ((m & 0x3fff) << 14) + w[j] + c;\n c = (l >> 28) + (m >> 14) + xh * h;\n w[j++] = l & 0xfffffff;\n }\n return c;\n}\nvar inBrowser = typeof navigator !== 'undefined';\nif (inBrowser && j_lm && navigator.appName == 'Microsoft Internet Explorer') {\n BigInteger.prototype.am = am2;\n dbits = 30;\n} else if (inBrowser && j_lm && navigator.appName != 'Netscape') {\n BigInteger.prototype.am = am1;\n dbits = 26;\n} else {\n // Mozilla/Netscape seems to prefer am3\n BigInteger.prototype.am = am3;\n dbits = 28;\n}\nBigInteger.prototype.DB = dbits;\nBigInteger.prototype.DM = (1 << dbits) - 1;\nBigInteger.prototype.DV = 1 << dbits;\nvar BI_FP = 52;\nBigInteger.prototype.FV = Math.pow(2, BI_FP);\nBigInteger.prototype.F1 = BI_FP - dbits;\nBigInteger.prototype.F2 = 2 * dbits - BI_FP;\n\n// Digit conversions\nvar BI_RM = '0123456789abcdefghijklmnopqrstuvwxyz';\nvar BI_RC = new Array();\nvar rr, vv;\nrr = '0'.charCodeAt(0);\nfor (vv = 0; vv <= 9; ++vv) BI_RC[rr++] = vv;\nrr = 'a'.charCodeAt(0);\nfor (vv = 10; vv < 36; ++vv) BI_RC[rr++] = vv;\nrr = 'A'.charCodeAt(0);\nfor (vv = 10; vv < 36; ++vv) BI_RC[rr++] = vv;\nfunction int2char(n) {\n return BI_RM.charAt(n);\n}\nfunction intAt(s, i) {\n var c = BI_RC[s.charCodeAt(i)];\n return c == null ? -1 : c;\n}\n\n// (protected) copy this to r\nfunction bnpCopyTo(r) {\n for (var i = this.t - 1; i >= 0; --i) r[i] = this[i];\n r.t = this.t;\n r.s = this.s;\n}\n\n// (protected) set from integer value x, -DV <= x < DV\nfunction bnpFromInt(x) {\n this.t = 1;\n this.s = x < 0 ? -1 : 0;\n if (x > 0) this[0] = x;else if (x < -1) this[0] = x + this.DV;else this.t = 0;\n}\n\n// return bigint initialized to value\nfunction nbv(i) {\n var r = nbi();\n r.fromInt(i);\n return r;\n}\n\n// (protected) set from string and radix\nfunction bnpFromString(s, b) {\n var k;\n if (b == 16) k = 4;else if (b == 8) k = 3;else if (b == 2) k = 1;else if (b == 32) k = 5;else if (b == 4) k = 2;else throw new Error('Only radix 2, 4, 8, 16, 32 are supported');\n this.t = 0;\n this.s = 0;\n var i = s.length,\n mi = false,\n sh = 0;\n while (--i >= 0) {\n var x = intAt(s, i);\n if (x < 0) {\n if (s.charAt(i) == '-') mi = true;\n continue;\n }\n mi = false;\n if (sh == 0) this[this.t++] = x;else if (sh + k > this.DB) {\n this[this.t - 1] |= (x & (1 << this.DB - sh) - 1) << sh;\n this[this.t++] = x >> this.DB - sh;\n } else this[this.t - 1] |= x << sh;\n sh += k;\n if (sh >= this.DB) sh -= this.DB;\n }\n this.clamp();\n if (mi) BigInteger.ZERO.subTo(this, this);\n}\n\n// (protected) clamp off excess high words\nfunction bnpClamp() {\n var c = this.s & this.DM;\n while (this.t > 0 && this[this.t - 1] == c) --this.t;\n}\n\n// (public) return string representation in given radix\nfunction bnToString(b) {\n if (this.s < 0) return '-' + this.negate().toString(b);\n var k;\n if (b == 16) k = 4;else if (b == 8) k = 3;else if (b == 2) k = 1;else if (b == 32) k = 5;else if (b == 4) k = 2;else throw new Error('Only radix 2, 4, 8, 16, 32 are supported');\n var km = (1 << k) - 1,\n d,\n m = false,\n r = '',\n i = this.t;\n var p = this.DB - i * this.DB % k;\n if (i-- > 0) {\n if (p < this.DB && (d = this[i] >> p) > 0) {\n m = true;\n r = int2char(d);\n }\n while (i >= 0) {\n if (p < k) {\n d = (this[i] & (1 << p) - 1) << k - p;\n d |= this[--i] >> (p += this.DB - k);\n } else {\n d = this[i] >> (p -= k) & km;\n if (p <= 0) {\n p += this.DB;\n --i;\n }\n }\n if (d > 0) m = true;\n if (m) r += int2char(d);\n }\n }\n return m ? r : '0';\n}\n\n// (public) -this\nfunction bnNegate() {\n var r = nbi();\n BigInteger.ZERO.subTo(this, r);\n return r;\n}\n\n// (public) |this|\nfunction bnAbs() {\n return this.s < 0 ? this.negate() : this;\n}\n\n// (public) return + if this > a, - if this < a, 0 if equal\nfunction bnCompareTo(a) {\n var r = this.s - a.s;\n if (r != 0) return r;\n var i = this.t;\n r = i - a.t;\n if (r != 0) return this.s < 0 ? -r : r;\n while (--i >= 0) if ((r = this[i] - a[i]) != 0) return r;\n return 0;\n}\n\n// returns bit length of the integer x\nfunction nbits(x) {\n var r = 1,\n t;\n if ((t = x >>> 16) != 0) {\n x = t;\n r += 16;\n }\n if ((t = x >> 8) != 0) {\n x = t;\n r += 8;\n }\n if ((t = x >> 4) != 0) {\n x = t;\n r += 4;\n }\n if ((t = x >> 2) != 0) {\n x = t;\n r += 2;\n }\n if ((t = x >> 1) != 0) {\n x = t;\n r += 1;\n }\n return r;\n}\n\n// (public) return the number of bits in \"this\"\nfunction bnBitLength() {\n if (this.t <= 0) return 0;\n return this.DB * (this.t - 1) + nbits(this[this.t - 1] ^ this.s & this.DM);\n}\n\n// (protected) r = this << n*DB\nfunction bnpDLShiftTo(n, r) {\n var i;\n for (i = this.t - 1; i >= 0; --i) r[i + n] = this[i];\n for (i = n - 1; i >= 0; --i) r[i] = 0;\n r.t = this.t + n;\n r.s = this.s;\n}\n\n// (protected) r = this >> n*DB\nfunction bnpDRShiftTo(n, r) {\n for (var i = n; i < this.t; ++i) r[i - n] = this[i];\n r.t = Math.max(this.t - n, 0);\n r.s = this.s;\n}\n\n// (protected) r = this << n\nfunction bnpLShiftTo(n, r) {\n var bs = n % this.DB;\n var cbs = this.DB - bs;\n var bm = (1 << cbs) - 1;\n var ds = Math.floor(n / this.DB),\n c = this.s << bs & this.DM,\n i;\n for (i = this.t - 1; i >= 0; --i) {\n r[i + ds + 1] = this[i] >> cbs | c;\n c = (this[i] & bm) << bs;\n }\n for (i = ds - 1; i >= 0; --i) r[i] = 0;\n r[ds] = c;\n r.t = this.t + ds + 1;\n r.s = this.s;\n r.clamp();\n}\n\n// (protected) r = this >> n\nfunction bnpRShiftTo(n, r) {\n r.s = this.s;\n var ds = Math.floor(n / this.DB);\n if (ds >= this.t) {\n r.t = 0;\n return;\n }\n var bs = n % this.DB;\n var cbs = this.DB - bs;\n var bm = (1 << bs) - 1;\n r[0] = this[ds] >> bs;\n for (var i = ds + 1; i < this.t; ++i) {\n r[i - ds - 1] |= (this[i] & bm) << cbs;\n r[i - ds] = this[i] >> bs;\n }\n if (bs > 0) r[this.t - ds - 1] |= (this.s & bm) << cbs;\n r.t = this.t - ds;\n r.clamp();\n}\n\n// (protected) r = this - a\nfunction bnpSubTo(a, r) {\n var i = 0,\n c = 0,\n m = Math.min(a.t, this.t);\n while (i < m) {\n c += this[i] - a[i];\n r[i++] = c & this.DM;\n c >>= this.DB;\n }\n if (a.t < this.t) {\n c -= a.s;\n while (i < this.t) {\n c += this[i];\n r[i++] = c & this.DM;\n c >>= this.DB;\n }\n c += this.s;\n } else {\n c += this.s;\n while (i < a.t) {\n c -= a[i];\n r[i++] = c & this.DM;\n c >>= this.DB;\n }\n c -= a.s;\n }\n r.s = c < 0 ? -1 : 0;\n if (c < -1) r[i++] = this.DV + c;else if (c > 0) r[i++] = c;\n r.t = i;\n r.clamp();\n}\n\n// (protected) r = this * a, r != this,a (HAC 14.12)\n// \"this\" should be the larger one if appropriate.\nfunction bnpMultiplyTo(a, r) {\n var x = this.abs(),\n y = a.abs();\n var i = x.t;\n r.t = i + y.t;\n while (--i >= 0) r[i] = 0;\n for (i = 0; i < y.t; ++i) r[i + x.t] = x.am(0, y[i], r, i, 0, x.t);\n r.s = 0;\n r.clamp();\n if (this.s != a.s) BigInteger.ZERO.subTo(r, r);\n}\n\n// (protected) r = this^2, r != this (HAC 14.16)\nfunction bnpSquareTo(r) {\n var x = this.abs();\n var i = r.t = 2 * x.t;\n while (--i >= 0) r[i] = 0;\n for (i = 0; i < x.t - 1; ++i) {\n var c = x.am(i, x[i], r, 2 * i, 0, 1);\n if ((r[i + x.t] += x.am(i + 1, 2 * x[i], r, 2 * i + 1, c, x.t - i - 1)) >= x.DV) {\n r[i + x.t] -= x.DV;\n r[i + x.t + 1] = 1;\n }\n }\n if (r.t > 0) r[r.t - 1] += x.am(i, x[i], r, 2 * i, 0, 1);\n r.s = 0;\n r.clamp();\n}\n\n// (protected) divide this by m, quotient and remainder to q, r (HAC 14.20)\n// r != q, this != m. q or r may be null.\nfunction bnpDivRemTo(m, q, r) {\n var pm = m.abs();\n if (pm.t <= 0) return;\n var pt = this.abs();\n if (pt.t < pm.t) {\n if (q != null) q.fromInt(0);\n if (r != null) this.copyTo(r);\n return;\n }\n if (r == null) r = nbi();\n var y = nbi(),\n ts = this.s,\n ms = m.s;\n var nsh = this.DB - nbits(pm[pm.t - 1]);\n // normalize modulus\n if (nsh > 0) {\n pm.lShiftTo(nsh, y);\n pt.lShiftTo(nsh, r);\n } else {\n pm.copyTo(y);\n pt.copyTo(r);\n }\n var ys = y.t;\n var y0 = y[ys - 1];\n if (y0 == 0) return;\n var yt = y0 * (1 << this.F1) + (ys > 1 ? y[ys - 2] >> this.F2 : 0);\n var d1 = this.FV / yt,\n d2 = (1 << this.F1) / yt,\n e = 1 << this.F2;\n var i = r.t,\n j = i - ys,\n t = q == null ? nbi() : q;\n y.dlShiftTo(j, t);\n if (r.compareTo(t) >= 0) {\n r[r.t++] = 1;\n r.subTo(t, r);\n }\n BigInteger.ONE.dlShiftTo(ys, t);\n t.subTo(y, y);\n // \"negative\" y so we can replace sub with am later\n while (y.t < ys) y[y.t++] = 0;\n while (--j >= 0) {\n // Estimate quotient digit\n var qd = r[--i] == y0 ? this.DM : Math.floor(r[i] * d1 + (r[i - 1] + e) * d2);\n if ((r[i] += y.am(0, qd, r, j, 0, ys)) < qd) {\n // Try it out\n y.dlShiftTo(j, t);\n r.subTo(t, r);\n while (r[i] < --qd) r.subTo(t, r);\n }\n }\n if (q != null) {\n r.drShiftTo(ys, q);\n if (ts != ms) BigInteger.ZERO.subTo(q, q);\n }\n r.t = ys;\n r.clamp();\n if (nsh > 0) r.rShiftTo(nsh, r);\n // Denormalize remainder\n if (ts < 0) BigInteger.ZERO.subTo(r, r);\n}\n\n// (public) this mod a\nfunction bnMod(a) {\n var r = nbi();\n this.abs().divRemTo(a, null, r);\n if (this.s < 0 && r.compareTo(BigInteger.ZERO) > 0) a.subTo(r, r);\n return r;\n}\n\n// (protected) return \"-1/this % 2^DB\"; useful for Mont. reduction\n// justification:\n// xy == 1 (mod m)\n// xy = 1+km\n// xy(2-xy) = (1+km)(1-km)\n// x[y(2-xy)] = 1-k^2m^2\n// x[y(2-xy)] == 1 (mod m^2)\n// if y is 1/x mod m, then y(2-xy) is 1/x mod m^2\n// should reduce x and y(2-xy) by m^2 at each step to keep size bounded.\n// JS multiply \"overflows\" differently from C/C++, so care is needed here.\nfunction bnpInvDigit() {\n if (this.t < 1) return 0;\n var x = this[0];\n if ((x & 1) == 0) return 0;\n var y = x & 3;\n // y == 1/x mod 2^2\n y = y * (2 - (x & 0xf) * y) & 0xf;\n // y == 1/x mod 2^4\n y = y * (2 - (x & 0xff) * y) & 0xff;\n // y == 1/x mod 2^8\n y = y * (2 - ((x & 0xffff) * y & 0xffff)) & 0xffff;\n // y == 1/x mod 2^16\n // last step - calculate inverse mod DV directly;\n // assumes 16 < DB <= 32 and assumes ability to handle 48-bit ints\n y = y * (2 - x * y % this.DV) % this.DV;\n // y == 1/x mod 2^dbits\n // we really want the negative inverse, and -DV < y < DV\n return y > 0 ? this.DV - y : -y;\n}\nfunction bnEquals(a) {\n return this.compareTo(a) == 0;\n}\n\n// (protected) r = this + a\nfunction bnpAddTo(a, r) {\n var i = 0,\n c = 0,\n m = Math.min(a.t, this.t);\n while (i < m) {\n c += this[i] + a[i];\n r[i++] = c & this.DM;\n c >>= this.DB;\n }\n if (a.t < this.t) {\n c += a.s;\n while (i < this.t) {\n c += this[i];\n r[i++] = c & this.DM;\n c >>= this.DB;\n }\n c += this.s;\n } else {\n c += this.s;\n while (i < a.t) {\n c += a[i];\n r[i++] = c & this.DM;\n c >>= this.DB;\n }\n c += a.s;\n }\n r.s = c < 0 ? -1 : 0;\n if (c > 0) r[i++] = c;else if (c < -1) r[i++] = this.DV + c;\n r.t = i;\n r.clamp();\n}\n\n// (public) this + a\nfunction bnAdd(a) {\n var r = nbi();\n this.addTo(a, r);\n return r;\n}\n\n// (public) this - a\nfunction bnSubtract(a) {\n var r = nbi();\n this.subTo(a, r);\n return r;\n}\n\n// (public) this * a\nfunction bnMultiply(a) {\n var r = nbi();\n this.multiplyTo(a, r);\n return r;\n}\n\n// (public) this / a\nfunction bnDivide(a) {\n var r = nbi();\n this.divRemTo(a, r, null);\n return r;\n}\n\n// Montgomery reduction\nfunction Montgomery(m) {\n this.m = m;\n this.mp = m.invDigit();\n this.mpl = this.mp & 0x7fff;\n this.mph = this.mp >> 15;\n this.um = (1 << m.DB - 15) - 1;\n this.mt2 = 2 * m.t;\n}\n\n// xR mod m\nfunction montConvert(x) {\n var r = nbi();\n x.abs().dlShiftTo(this.m.t, r);\n r.divRemTo(this.m, null, r);\n if (x.s < 0 && r.compareTo(BigInteger.ZERO) > 0) this.m.subTo(r, r);\n return r;\n}\n\n// x/R mod m\nfunction montRevert(x) {\n var r = nbi();\n x.copyTo(r);\n this.reduce(r);\n return r;\n}\n\n// x = x/R mod m (HAC 14.32)\nfunction montReduce(x) {\n while (x.t <= this.mt2)\n // pad x so am has enough room later\n x[x.t++] = 0;\n for (var i = 0; i < this.m.t; ++i) {\n // faster way of calculating u0 = x[i]*mp mod DV\n var j = x[i] & 0x7fff;\n var u0 = j * this.mpl + ((j * this.mph + (x[i] >> 15) * this.mpl & this.um) << 15) & x.DM;\n // use am to combine the multiply-shift-add into one call\n j = i + this.m.t;\n x[j] += this.m.am(0, u0, x, i, 0, this.m.t);\n // propagate carry\n while (x[j] >= x.DV) {\n x[j] -= x.DV;\n x[++j]++;\n }\n }\n x.clamp();\n x.drShiftTo(this.m.t, x);\n if (x.compareTo(this.m) >= 0) x.subTo(this.m, x);\n}\n\n// r = \"x^2/R mod m\"; x != r\nfunction montSqrTo(x, r) {\n x.squareTo(r);\n this.reduce(r);\n}\n\n// r = \"xy/R mod m\"; x,y != r\nfunction montMulTo(x, y, r) {\n x.multiplyTo(y, r);\n this.reduce(r);\n}\nMontgomery.prototype.convert = montConvert;\nMontgomery.prototype.revert = montRevert;\nMontgomery.prototype.reduce = montReduce;\nMontgomery.prototype.mulTo = montMulTo;\nMontgomery.prototype.sqrTo = montSqrTo;\n\n// (public) this^e % m (HAC 14.85)\nfunction bnModPow(e, m, callback) {\n var i = e.bitLength(),\n k,\n r = nbv(1),\n z = new Montgomery(m);\n if (i <= 0) return r;else if (i < 18) k = 1;else if (i < 48) k = 3;else if (i < 144) k = 4;else if (i < 768) k = 5;else k = 6;\n\n // precomputation\n var g = new Array(),\n n = 3,\n k1 = k - 1,\n km = (1 << k) - 1;\n g[1] = z.convert(this);\n if (k > 1) {\n var g2 = nbi();\n z.sqrTo(g[1], g2);\n while (n <= km) {\n g[n] = nbi();\n z.mulTo(g2, g[n - 2], g[n]);\n n += 2;\n }\n }\n var j = e.t - 1,\n w,\n is1 = true,\n r2 = nbi(),\n t;\n i = nbits(e[j]) - 1;\n while (j >= 0) {\n if (i >= k1) w = e[j] >> i - k1 & km;else {\n w = (e[j] & (1 << i + 1) - 1) << k1 - i;\n if (j > 0) w |= e[j - 1] >> this.DB + i - k1;\n }\n n = k;\n while ((w & 1) == 0) {\n w >>= 1;\n --n;\n }\n if ((i -= n) < 0) {\n i += this.DB;\n --j;\n }\n if (is1) {\n // ret == 1, don't bother squaring or multiplying it\n g[w].copyTo(r);\n is1 = false;\n } else {\n while (n > 1) {\n z.sqrTo(r, r2);\n z.sqrTo(r2, r);\n n -= 2;\n }\n if (n > 0) z.sqrTo(r, r2);else {\n t = r;\n r = r2;\n r2 = t;\n }\n z.mulTo(r2, g[w], r);\n }\n while (j >= 0 && (e[j] & 1 << i) == 0) {\n z.sqrTo(r, r2);\n t = r;\n r = r2;\n r2 = t;\n if (--i < 0) {\n i = this.DB - 1;\n --j;\n }\n }\n }\n var result = z.revert(r);\n callback(null, result);\n return result;\n}\n\n// protected\nBigInteger.prototype.copyTo = bnpCopyTo;\nBigInteger.prototype.fromInt = bnpFromInt;\nBigInteger.prototype.fromString = bnpFromString;\nBigInteger.prototype.clamp = bnpClamp;\nBigInteger.prototype.dlShiftTo = bnpDLShiftTo;\nBigInteger.prototype.drShiftTo = bnpDRShiftTo;\nBigInteger.prototype.lShiftTo = bnpLShiftTo;\nBigInteger.prototype.rShiftTo = bnpRShiftTo;\nBigInteger.prototype.subTo = bnpSubTo;\nBigInteger.prototype.multiplyTo = bnpMultiplyTo;\nBigInteger.prototype.squareTo = bnpSquareTo;\nBigInteger.prototype.divRemTo = bnpDivRemTo;\nBigInteger.prototype.invDigit = bnpInvDigit;\nBigInteger.prototype.addTo = bnpAddTo;\n\n// public\nBigInteger.prototype.toString = bnToString;\nBigInteger.prototype.negate = bnNegate;\nBigInteger.prototype.abs = bnAbs;\nBigInteger.prototype.compareTo = bnCompareTo;\nBigInteger.prototype.bitLength = bnBitLength;\nBigInteger.prototype.mod = bnMod;\nBigInteger.prototype.equals = bnEquals;\nBigInteger.prototype.add = bnAdd;\nBigInteger.prototype.subtract = bnSubtract;\nBigInteger.prototype.multiply = bnMultiply;\nBigInteger.prototype.divide = bnDivide;\nBigInteger.prototype.modPow = bnModPow;\n\n// \"constants\"\nBigInteger.ZERO = nbv(0);\nBigInteger.ONE = nbv(1);","/*!\n * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.\n * SPDX-License-Identifier: Apache-2.0\n */\n\nimport { Buffer } from 'buffer';\nimport WordArray from './utils/WordArray';\nimport { Sha256 } from '@aws-crypto/sha256-js';\n\n/**\n * Returns a Buffer with a sequence of random nBytes\n *\n * @param {number} nBytes\n * @returns {Buffer} fixed-length sequence of random bytes\n */\n\nfunction randomBytes(nBytes) {\n return Buffer.from(new WordArray().random(nBytes).toString(), 'hex');\n}\nimport BigInteger from './BigInteger';\n\n/**\n * Tests if a hex string has it most significant bit set (case-insensitive regex)\n */\nvar HEX_MSB_REGEX = /^[89a-f]/i;\nvar initN = 'FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD1' + '29024E088A67CC74020BBEA63B139B22514A08798E3404DD' + 'EF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245' + 'E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7ED' + 'EE386BFB5A899FA5AE9F24117C4B1FE649286651ECE45B3D' + 'C2007CB8A163BF0598DA48361C55D39A69163FA8FD24CF5F' + '83655D23DCA3AD961C62F356208552BB9ED529077096966D' + '670C354E4ABC9804F1746C08CA18217C32905E462E36CE3B' + 'E39E772C180E86039B2783A2EC07A28FB5C55DF06F4C52C9' + 'DE2BCBF6955817183995497CEA956AE515D2261898FA0510' + '15728E5A8AAAC42DAD33170D04507A33A85521ABDF1CBA64' + 'ECFB850458DBEF0A8AEA71575D060C7DB3970F85A6E1E4C7' + 'ABF5AE8CDB0933D71E8C94E04A25619DCEE3D2261AD2EE6B' + 'F12FFA06D98A0864D87602733EC86A64521F2B18177B200C' + 'BBE117577A615D6C770988C0BAD946E208E24FA074E5AB31' + '43DB5BFCE0FD108E4B82D120A93AD2CAFFFFFFFFFFFFFFFF';\nvar newPasswordRequiredChallengeUserAttributePrefix = 'userAttributes.';\n\n/** @class */\nvar AuthenticationHelper = /*#__PURE__*/function () {\n /**\n * Constructs a new AuthenticationHelper object\n * @param {string} PoolName Cognito user pool name.\n */\n function AuthenticationHelper(PoolName) {\n this.N = new BigInteger(initN, 16);\n this.g = new BigInteger('2', 16);\n this.k = new BigInteger(this.hexHash(\"\" + this.padHex(this.N) + this.padHex(this.g)), 16);\n this.smallAValue = this.generateRandomSmallA();\n this.getLargeAValue(function () {});\n this.infoBits = Buffer.from('Caldera Derived Key', 'utf8');\n this.poolName = PoolName;\n }\n\n /**\n * @returns {BigInteger} small A, a random number\n */\n var _proto = AuthenticationHelper.prototype;\n _proto.getSmallAValue = function getSmallAValue() {\n return this.smallAValue;\n }\n\n /**\n * @param {nodeCallback} callback Called with (err, largeAValue)\n * @returns {void}\n */;\n _proto.getLargeAValue = function getLargeAValue(callback) {\n var _this = this;\n if (this.largeAValue) {\n callback(null, this.largeAValue);\n } else {\n this.calculateA(this.smallAValue, function (err, largeAValue) {\n if (err) {\n callback(err, null);\n }\n _this.largeAValue = largeAValue;\n callback(null, _this.largeAValue);\n });\n }\n }\n\n /**\n * helper function to generate a random big integer\n * @returns {BigInteger} a random value.\n * @private\n */;\n _proto.generateRandomSmallA = function generateRandomSmallA() {\n // This will be interpreted as a postive 128-bit integer\n var hexRandom = randomBytes(128).toString('hex');\n var randomBigInt = new BigInteger(hexRandom, 16);\n\n // There is no need to do randomBigInt.mod(this.N - 1) as N (3072-bit) is > 128 bytes (1024-bit)\n\n return randomBigInt;\n }\n\n /**\n * helper function to generate a random string\n * @returns {string} a random value.\n * @private\n */;\n _proto.generateRandomString = function generateRandomString() {\n return randomBytes(40).toString('base64');\n }\n\n /**\n * @returns {string} Generated random value included in password hash.\n */;\n _proto.getRandomPassword = function getRandomPassword() {\n return this.randomPassword;\n }\n\n /**\n * @returns {string} Generated random value included in devices hash.\n */;\n _proto.getSaltDevices = function getSaltDevices() {\n return this.SaltToHashDevices;\n }\n\n /**\n * @returns {string} Value used to verify devices.\n */;\n _proto.getVerifierDevices = function getVerifierDevices() {\n return this.verifierDevices;\n }\n\n /**\n * Generate salts and compute verifier.\n * @param {string} deviceGroupKey Devices to generate verifier for.\n * @param {string} username User to generate verifier for.\n * @param {nodeCallback} callback Called with (err, null)\n * @returns {void}\n */;\n _proto.generateHashDevice = function generateHashDevice(deviceGroupKey, username, callback) {\n var _this2 = this;\n this.randomPassword = this.generateRandomString();\n var combinedString = \"\" + deviceGroupKey + username + \":\" + this.randomPassword;\n var hashedString = this.hash(combinedString);\n var hexRandom = randomBytes(16).toString('hex');\n\n // The random hex will be unambiguously represented as a postive integer\n this.SaltToHashDevices = this.padHex(new BigInteger(hexRandom, 16));\n this.g.modPow(new BigInteger(this.hexHash(this.SaltToHashDevices + hashedString), 16), this.N, function (err, verifierDevicesNotPadded) {\n if (err) {\n callback(err, null);\n }\n _this2.verifierDevices = _this2.padHex(verifierDevicesNotPadded);\n callback(null, null);\n });\n }\n\n /**\n * Calculate the client's public value A = g^a%N\n * with the generated random number a\n * @param {BigInteger} a Randomly generated small A.\n * @param {nodeCallback} callback Called with (err, largeAValue)\n * @returns {void}\n * @private\n */;\n _proto.calculateA = function calculateA(a, callback) {\n var _this3 = this;\n this.g.modPow(a, this.N, function (err, A) {\n if (err) {\n callback(err, null);\n }\n if (A.mod(_this3.N).equals(BigInteger.ZERO)) {\n callback(new Error('Illegal paramater. A mod N cannot be 0.'), null);\n }\n callback(null, A);\n });\n }\n\n /**\n * Calculate the client's value U which is the hash of A and B\n * @param {BigInteger} A Large A value.\n * @param {BigInteger} B Server B value.\n * @returns {BigInteger} Computed U value.\n * @private\n */;\n _proto.calculateU = function calculateU(A, B) {\n this.UHexHash = this.hexHash(this.padHex(A) + this.padHex(B));\n var finalU = new BigInteger(this.UHexHash, 16);\n return finalU;\n }\n\n /**\n * Calculate a hash from a bitArray\n * @param {Buffer} buf Value to hash.\n * @returns {String} Hex-encoded hash.\n * @private\n */;\n _proto.hash = function hash(buf) {\n var awsCryptoHash = new Sha256();\n awsCryptoHash.update(buf);\n var resultFromAWSCrypto = awsCryptoHash.digestSync();\n var hashHex = Buffer.from(resultFromAWSCrypto).toString('hex');\n return new Array(64 - hashHex.length).join('0') + hashHex;\n }\n\n /**\n * Calculate a hash from a hex string\n * @param {String} hexStr Value to hash.\n * @returns {String} Hex-encoded hash.\n * @private\n */;\n _proto.hexHash = function hexHash(hexStr) {\n return this.hash(Buffer.from(hexStr, 'hex'));\n }\n\n /**\n * Standard hkdf algorithm\n * @param {Buffer} ikm Input key material.\n * @param {Buffer} salt Salt value.\n * @returns {Buffer} Strong key material.\n * @private\n */;\n _proto.computehkdf = function computehkdf(ikm, salt) {\n var infoBitsBuffer = Buffer.concat([this.infoBits, Buffer.from(String.fromCharCode(1), 'utf8')]);\n var awsCryptoHash = new Sha256(salt);\n awsCryptoHash.update(ikm);\n var resultFromAWSCryptoPrk = awsCryptoHash.digestSync();\n var awsCryptoHashHmac = new Sha256(resultFromAWSCryptoPrk);\n awsCryptoHashHmac.update(infoBitsBuffer);\n var resultFromAWSCryptoHmac = awsCryptoHashHmac.digestSync();\n var hashHexFromAWSCrypto = resultFromAWSCryptoHmac;\n var currentHex = hashHexFromAWSCrypto.slice(0, 16);\n return currentHex;\n }\n\n /**\n * Calculates the final hkdf based on computed S value, and computed U value and the key\n * @param {String} username Username.\n * @param {String} password Password.\n * @param {BigInteger} serverBValue Server B value.\n * @param {BigInteger} salt Generated salt.\n * @param {nodeCallback} callback Called with (err, hkdfValue)\n * @returns {void}\n */;\n _proto.getPasswordAuthenticationKey = function getPasswordAuthenticationKey(username, password, serverBValue, salt, callback) {\n var _this4 = this;\n if (serverBValue.mod(this.N).equals(BigInteger.ZERO)) {\n throw new Error('B cannot be zero.');\n }\n this.UValue = this.calculateU(this.largeAValue, serverBValue);\n if (this.UValue.equals(BigInteger.ZERO)) {\n throw new Error('U cannot be zero.');\n }\n var usernamePassword = \"\" + this.poolName + username + \":\" + password;\n var usernamePasswordHash = this.hash(usernamePassword);\n var xValue = new BigInteger(this.hexHash(this.padHex(salt) + usernamePasswordHash), 16);\n this.calculateS(xValue, serverBValue, function (err, sValue) {\n if (err) {\n callback(err, null);\n }\n var hkdf = _this4.computehkdf(Buffer.from(_this4.padHex(sValue), 'hex'), Buffer.from(_this4.padHex(_this4.UValue), 'hex'));\n callback(null, hkdf);\n });\n }\n\n /**\n * Calculates the S value used in getPasswordAuthenticationKey\n * @param {BigInteger} xValue Salted password hash value.\n * @param {BigInteger} serverBValue Server B value.\n * @param {nodeCallback} callback Called on success or error.\n * @returns {void}\n */;\n _proto.calculateS = function calculateS(xValue, serverBValue, callback) {\n var _this5 = this;\n this.g.modPow(xValue, this.N, function (err, gModPowXN) {\n if (err) {\n callback(err, null);\n }\n var intValue2 = serverBValue.subtract(_this5.k.multiply(gModPowXN));\n intValue2.modPow(_this5.smallAValue.add(_this5.UValue.multiply(xValue)), _this5.N, function (err2, result) {\n if (err2) {\n callback(err2, null);\n }\n callback(null, result.mod(_this5.N));\n });\n });\n }\n\n /**\n * Return constant newPasswordRequiredChallengeUserAttributePrefix\n * @return {newPasswordRequiredChallengeUserAttributePrefix} constant prefix value\n */;\n _proto.getNewPasswordRequiredChallengeUserAttributePrefix = function getNewPasswordRequiredChallengeUserAttributePrefix() {\n return newPasswordRequiredChallengeUserAttributePrefix;\n }\n\n /**\n * Returns an unambiguous, even-length hex string of the two's complement encoding of an integer.\n *\n * It is compatible with the hex encoding of Java's BigInteger's toByteArray(), wich returns a\n * byte array containing the two's-complement representation of a BigInteger. The array contains\n * the minimum number of bytes required to represent the BigInteger, including at least one sign bit.\n *\n * Examples showing how ambiguity is avoided by left padding with:\n * \t\"00\" (for positive values where the most-significant-bit is set)\n * \"FF\" (for negative values where the most-significant-bit is set)\n *\n * padHex(bigInteger.fromInt(-236)) === \"FF14\"\n * padHex(bigInteger.fromInt(20)) === \"14\"\n *\n * padHex(bigInteger.fromInt(-200)) === \"FF38\"\n * padHex(bigInteger.fromInt(56)) === \"38\"\n *\n * padHex(bigInteger.fromInt(-20)) === \"EC\"\n * padHex(bigInteger.fromInt(236)) === \"00EC\"\n *\n * padHex(bigInteger.fromInt(-56)) === \"C8\"\n * padHex(bigInteger.fromInt(200)) === \"00C8\"\n *\n * @param {BigInteger} bigInt Number to encode.\n * @returns {String} even-length hex string of the two's complement encoding.\n */;\n _proto.padHex = function padHex(bigInt) {\n if (!(bigInt instanceof BigInteger)) {\n throw new Error('Not a BigInteger');\n }\n var isNegative = bigInt.compareTo(BigInteger.ZERO) < 0;\n\n /* Get a hex string for abs(bigInt) */\n var hexStr = bigInt.abs().toString(16);\n\n /* Pad hex to even length if needed */\n hexStr = hexStr.length % 2 !== 0 ? \"0\" + hexStr : hexStr;\n\n /* Prepend \"00\" if the most significant bit is set */\n hexStr = HEX_MSB_REGEX.test(hexStr) ? \"00\" + hexStr : hexStr;\n if (isNegative) {\n /* Flip the bits of the representation */\n var invertedNibbles = hexStr.split('').map(function (x) {\n var invertedNibble = ~parseInt(x, 16) & 0xf;\n return '0123456789ABCDEF'.charAt(invertedNibble);\n }).join('');\n\n /* After flipping the bits, add one to get the 2's complement representation */\n var flippedBitsBI = new BigInteger(invertedNibbles, 16).add(BigInteger.ONE);\n hexStr = flippedBitsBI.toString(16);\n\n /*\n For hex strings starting with 'FF8', 'FF' can be dropped, e.g. 0xFFFF80=0xFF80=0x80=-128\n \t\tAny sequence of '1' bits on the left can always be substituted with a single '1' bit\n without changing the represented value.\n \t\tThis only happens in the case when the input is 80...00\n */\n if (hexStr.toUpperCase().startsWith('FF8')) {\n hexStr = hexStr.substring(2);\n }\n }\n return hexStr;\n };\n return AuthenticationHelper;\n}();\nexport { AuthenticationHelper as default };","/*!\n * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.\n * SPDX-License-Identifier: Apache-2.0\n */\n\nimport { Buffer } from 'buffer';\n\n/** @class */\nvar CognitoJwtToken = /*#__PURE__*/function () {\n /**\n * Constructs a new CognitoJwtToken object\n * @param {string=} token The JWT token.\n */\n function CognitoJwtToken(token) {\n // Assign object\n this.jwtToken = token || '';\n this.payload = this.decodePayload();\n }\n\n /**\n * @returns {string} the record's token.\n */\n var _proto = CognitoJwtToken.prototype;\n _proto.getJwtToken = function getJwtToken() {\n return this.jwtToken;\n }\n\n /**\n * @returns {int} the token's expiration (exp member).\n */;\n _proto.getExpiration = function getExpiration() {\n return this.payload.exp;\n }\n\n /**\n * @returns {int} the token's \"issued at\" (iat member).\n */;\n _proto.getIssuedAt = function getIssuedAt() {\n return this.payload.iat;\n }\n\n /**\n * @returns {object} the token's payload.\n */;\n _proto.decodePayload = function decodePayload() {\n var payload = this.jwtToken.split('.')[1];\n try {\n return JSON.parse(Buffer.from(payload, 'base64').toString('utf8'));\n } catch (err) {\n return {};\n }\n };\n return CognitoJwtToken;\n}();\nexport { CognitoJwtToken as default };","function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; _setPrototypeOf(subClass, superClass); }\nfunction _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf ? Object.setPrototypeOf.bind() : function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }\n/*!\n * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.\n * SPDX-License-Identifier: Apache-2.0\n */\n\nimport CognitoJwtToken from './CognitoJwtToken';\n\n/** @class */\nvar CognitoAccessToken = /*#__PURE__*/function (_CognitoJwtToken) {\n _inheritsLoose(CognitoAccessToken, _CognitoJwtToken);\n /**\n * Constructs a new CognitoAccessToken object\n * @param {string=} AccessToken The JWT access token.\n */\n function CognitoAccessToken(_temp) {\n var _ref = _temp === void 0 ? {} : _temp,\n AccessToken = _ref.AccessToken;\n return _CognitoJwtToken.call(this, AccessToken || '') || this;\n }\n return CognitoAccessToken;\n}(CognitoJwtToken);\nexport { CognitoAccessToken as default };","function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; _setPrototypeOf(subClass, superClass); }\nfunction _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf ? Object.setPrototypeOf.bind() : function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }\n/*!\n * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.\n * SPDX-License-Identifier: Apache-2.0\n */\n\nimport CognitoJwtToken from './CognitoJwtToken';\n\n/** @class */\nvar CognitoIdToken = /*#__PURE__*/function (_CognitoJwtToken) {\n _inheritsLoose(CognitoIdToken, _CognitoJwtToken);\n /**\n * Constructs a new CognitoIdToken object\n * @param {string=} IdToken The JWT Id token\n */\n function CognitoIdToken(_temp) {\n var _ref = _temp === void 0 ? {} : _temp,\n IdToken = _ref.IdToken;\n return _CognitoJwtToken.call(this, IdToken || '') || this;\n }\n return CognitoIdToken;\n}(CognitoJwtToken);\nexport { CognitoIdToken as default };","/*!\n * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.\n * SPDX-License-Identifier: Apache-2.0\n */\n/** @class */\nvar CognitoRefreshToken = /*#__PURE__*/function () {\n /**\n * Constructs a new CognitoRefreshToken object\n * @param {string=} RefreshToken The JWT refresh token.\n */\n function CognitoRefreshToken(_temp) {\n var _ref = _temp === void 0 ? {} : _temp,\n RefreshToken = _ref.RefreshToken;\n // Assign object\n this.token = RefreshToken || '';\n }\n\n /**\n * @returns {string} the record's token.\n */\n var _proto = CognitoRefreshToken.prototype;\n _proto.getToken = function getToken() {\n return this.token;\n };\n return CognitoRefreshToken;\n}();\nexport { CognitoRefreshToken as default };","/*!\n * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.\n * SPDX-License-Identifier: Apache-2.0\n */\nimport { version } from './version';\nvar BASE_USER_AGENT = \"aws-amplify/\" + version;\nexport var Platform = {\n userAgent: BASE_USER_AGENT,\n isReactNative: typeof navigator !== 'undefined' && navigator.product === 'ReactNative'\n};\nexport var getUserAgent = function getUserAgent() {\n return Platform.userAgent;\n};\n\n/**\n * @deprecated use named import\n */\nexport default Platform;","/*!\n * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.\n * SPDX-License-Identifier: Apache-2.0\n */\n/** @class */\nvar CognitoUserSession = /*#__PURE__*/function () {\n /**\n * Constructs a new CognitoUserSession object\n * @param {CognitoIdToken} IdToken The session's Id token.\n * @param {CognitoRefreshToken=} RefreshToken The session's refresh token.\n * @param {CognitoAccessToken} AccessToken The session's access token.\n * @param {int} ClockDrift The saved computer's clock drift or undefined to force calculation.\n */\n function CognitoUserSession(_temp) {\n var _ref = _temp === void 0 ? {} : _temp,\n IdToken = _ref.IdToken,\n RefreshToken = _ref.RefreshToken,\n AccessToken = _ref.AccessToken,\n ClockDrift = _ref.ClockDrift;\n if (AccessToken == null || IdToken == null) {\n throw new Error('Id token and Access Token must be present.');\n }\n this.idToken = IdToken;\n this.refreshToken = RefreshToken;\n this.accessToken = AccessToken;\n this.clockDrift = ClockDrift === undefined ? this.calculateClockDrift() : ClockDrift;\n }\n\n /**\n * @returns {CognitoIdToken} the session's Id token\n */\n var _proto = CognitoUserSession.prototype;\n _proto.getIdToken = function getIdToken() {\n return this.idToken;\n }\n\n /**\n * @returns {CognitoRefreshToken} the session's refresh token\n */;\n _proto.getRefreshToken = function getRefreshToken() {\n return this.refreshToken;\n }\n\n /**\n * @returns {CognitoAccessToken} the session's access token\n */;\n _proto.getAccessToken = function getAccessToken() {\n return this.accessToken;\n }\n\n /**\n * @returns {int} the session's clock drift\n */;\n _proto.getClockDrift = function getClockDrift() {\n return this.clockDrift;\n }\n\n /**\n * @returns {int} the computer's clock drift\n */;\n _proto.calculateClockDrift = function calculateClockDrift() {\n var now = Math.floor(new Date() / 1000);\n var iat = Math.min(this.accessToken.getIssuedAt(), this.idToken.getIssuedAt());\n return now - iat;\n }\n\n /**\n * Checks to see if the session is still valid based on session expiry information found\n * in tokens and the current time (adjusted with clock drift)\n * @returns {boolean} if the session is still valid\n */;\n _proto.isValid = function isValid() {\n var now = Math.floor(new Date() / 1000);\n var adjusted = now - this.clockDrift;\n return adjusted < this.accessToken.getExpiration() && adjusted < this.idToken.getExpiration();\n };\n return CognitoUserSession;\n}();\nexport { CognitoUserSession as default };","/*!\n * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.\n * SPDX-License-Identifier: Apache-2.0\n */\n\nvar monthNames = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];\nvar weekNames = ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'];\n\n/** @class */\nvar DateHelper = /*#__PURE__*/function () {\n function DateHelper() {}\n var _proto = DateHelper.prototype;\n /**\n * @returns {string} The current time in \"ddd MMM D HH:mm:ss UTC YYYY\" format.\n */\n _proto.getNowString = function getNowString() {\n var now = new Date();\n var weekDay = weekNames[now.getUTCDay()];\n var month = monthNames[now.getUTCMonth()];\n var day = now.getUTCDate();\n var hours = now.getUTCHours();\n if (hours < 10) {\n hours = \"0\" + hours;\n }\n var minutes = now.getUTCMinutes();\n if (minutes < 10) {\n minutes = \"0\" + minutes;\n }\n var seconds = now.getUTCSeconds();\n if (seconds < 10) {\n seconds = \"0\" + seconds;\n }\n var year = now.getUTCFullYear();\n\n // ddd MMM D HH:mm:ss UTC YYYY\n var dateNow = weekDay + \" \" + month + \" \" + day + \" \" + hours + \":\" + minutes + \":\" + seconds + \" UTC \" + year;\n return dateNow;\n };\n return DateHelper;\n}();\nexport { DateHelper as default };","/*!\n * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.\n * SPDX-License-Identifier: Apache-2.0\n */\n/** @class */\nvar CognitoUserAttribute = /*#__PURE__*/function () {\n /**\n * Constructs a new CognitoUserAttribute object\n * @param {string=} Name The record's name\n * @param {string=} Value The record's value\n */\n function CognitoUserAttribute(_temp) {\n var _ref = _temp === void 0 ? {} : _temp,\n Name = _ref.Name,\n Value = _ref.Value;\n this.Name = Name || '';\n this.Value = Value || '';\n }\n\n /**\n * @returns {string} the record's value.\n */\n var _proto = CognitoUserAttribute.prototype;\n _proto.getValue = function getValue() {\n return this.Value;\n }\n\n /**\n * Sets the record's value.\n * @param {string} value The new value.\n * @returns {CognitoUserAttribute} The record for method chaining.\n */;\n _proto.setValue = function setValue(value) {\n this.Value = value;\n return this;\n }\n\n /**\n * @returns {string} the record's name.\n */;\n _proto.getName = function getName() {\n return this.Name;\n }\n\n /**\n * Sets the record's name\n * @param {string} name The new name.\n * @returns {CognitoUserAttribute} The record for method chaining.\n */;\n _proto.setName = function setName(name) {\n this.Name = name;\n return this;\n }\n\n /**\n * @returns {string} a string representation of the record.\n */;\n _proto.toString = function toString() {\n return JSON.stringify(this);\n }\n\n /**\n * @returns {object} a flat object representing the record.\n */;\n _proto.toJSON = function toJSON() {\n return {\n Name: this.Name,\n Value: this.Value\n };\n };\n return CognitoUserAttribute;\n}();\nexport { CognitoUserAttribute as default };","/*!\n * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.\n * SPDX-License-Identifier: Apache-2.0\n */\n\nvar dataMemory = {};\n\n/** @class */\nexport var MemoryStorage = /*#__PURE__*/function () {\n function MemoryStorage() {}\n /**\n * This is used to set a specific item in storage\n * @param {string} key - the key for the item\n * @param {object} value - the value\n * @returns {string} value that was set\n */\n MemoryStorage.setItem = function setItem(key, value) {\n dataMemory[key] = value;\n return dataMemory[key];\n }\n\n /**\n * This is used to get a specific key from storage\n * @param {string} key - the key for the item\n * This is used to clear the storage\n * @returns {string} the data item\n */;\n MemoryStorage.getItem = function getItem(key) {\n return Object.prototype.hasOwnProperty.call(dataMemory, key) ? dataMemory[key] : undefined;\n }\n\n /**\n * This is used to remove an item from storage\n * @param {string} key - the key being set\n * @returns {boolean} return true\n */;\n MemoryStorage.removeItem = function removeItem(key) {\n return delete dataMemory[key];\n }\n\n /**\n * This is used to clear the storage\n * @returns {string} nothing\n */;\n MemoryStorage.clear = function clear() {\n dataMemory = {};\n return dataMemory;\n };\n return MemoryStorage;\n}();\n\n/** @class */\nvar StorageHelper = /*#__PURE__*/function () {\n /**\n * This is used to get a storage object\n * @returns {object} the storage\n */\n function StorageHelper() {\n try {\n this.storageWindow = window.localStorage;\n this.storageWindow.setItem('aws.cognito.test-ls', 1);\n this.storageWindow.removeItem('aws.cognito.test-ls');\n } catch (exception) {\n this.storageWindow = MemoryStorage;\n }\n }\n\n /**\n * This is used to return the storage\n * @returns {object} the storage\n */\n var _proto = StorageHelper.prototype;\n _proto.getStorage = function getStorage() {\n return this.storageWindow;\n };\n return StorageHelper;\n}();\nexport { StorageHelper as default };","/*!\n * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.\n * SPDX-License-Identifier: Apache-2.0\n */\n\nimport { Buffer } from 'buffer';\nimport { Sha256 } from '@aws-crypto/sha256-js';\nimport { Platform } from './Platform';\nimport BigInteger from './BigInteger';\nimport AuthenticationHelper from './AuthenticationHelper';\nimport CognitoAccessToken from './CognitoAccessToken';\nimport CognitoIdToken from './CognitoIdToken';\nimport CognitoRefreshToken from './CognitoRefreshToken';\nimport CognitoUserSession from './CognitoUserSession';\nimport DateHelper from './DateHelper';\nimport CognitoUserAttribute from './CognitoUserAttribute';\nimport StorageHelper from './StorageHelper';\n\n/**\n * @callback nodeCallback\n * @template T result\n * @param {*} err The operation failure reason, or null.\n * @param {T} result The operation result.\n */\n\n/**\n * @callback onFailure\n * @param {*} err Failure reason.\n */\n\n/**\n * @callback onSuccess\n * @template T result\n * @param {T} result The operation result.\n */\n\n/**\n * @callback mfaRequired\n * @param {*} details MFA challenge details.\n */\n\n/**\n * @callback customChallenge\n * @param {*} details Custom challenge details.\n */\n\n/**\n * @callback inputVerificationCode\n * @param {*} data Server response.\n */\n\n/**\n * @callback authSuccess\n * @param {CognitoUserSession} session The new session.\n * @param {bool=} userConfirmationNecessary User must be confirmed.\n */\n\nvar isNavigatorAvailable = typeof navigator !== 'undefined';\nvar userAgent = isNavigatorAvailable ? Platform.isReactNative ? 'react-native' : navigator.userAgent : 'nodejs';\n\n/** @class */\nvar CognitoUser = /*#__PURE__*/function () {\n /**\n * Constructs a new CognitoUser object\n * @param {object} data Creation options\n * @param {string} data.Username The user's username.\n * @param {CognitoUserPool} data.Pool Pool containing the user.\n * @param {object} data.Storage Optional storage object.\n */\n function CognitoUser(data) {\n if (data == null || data.Username == null || data.Pool == null) {\n throw new Error('Username and Pool information are required.');\n }\n this.username = data.Username || '';\n this.pool = data.Pool;\n this.Session = null;\n this.client = data.Pool.client;\n this.signInUserSession = null;\n this.authenticationFlowType = 'USER_SRP_AUTH';\n this.storage = data.Storage || new StorageHelper().getStorage();\n this.keyPrefix = \"CognitoIdentityServiceProvider.\" + this.pool.getClientId();\n this.userDataKey = this.keyPrefix + \".\" + this.username + \".userData\";\n }\n\n /**\n * Sets the session for this user\n * @param {CognitoUserSession} signInUserSession the session\n * @returns {void}\n */\n var _proto = CognitoUser.prototype;\n _proto.setSignInUserSession = function setSignInUserSession(signInUserSession) {\n this.clearCachedUserData();\n this.signInUserSession = signInUserSession;\n this.cacheTokens();\n }\n\n /**\n * @returns {CognitoUserSession} the current session for this user\n */;\n _proto.getSignInUserSession = function getSignInUserSession() {\n return this.signInUserSession;\n }\n\n /**\n * @returns {string} the user's username\n */;\n _proto.getUsername = function getUsername() {\n return this.username;\n }\n\n /**\n * @returns {String} the authentication flow type\n */;\n _proto.getAuthenticationFlowType = function getAuthenticationFlowType() {\n return this.authenticationFlowType;\n }\n\n /**\n * sets authentication flow type\n * @param {string} authenticationFlowType New value.\n * @returns {void}\n */;\n _proto.setAuthenticationFlowType = function setAuthenticationFlowType(authenticationFlowType) {\n this.authenticationFlowType = authenticationFlowType;\n }\n\n /**\n * This is used for authenticating the user through the custom authentication flow.\n * @param {AuthenticationDetails} authDetails Contains the authentication data\n * @param {object} callback Result callback map.\n * @param {onFailure} callback.onFailure Called on any error.\n * @param {customChallenge} callback.customChallenge Custom challenge\n * response required to continue.\n * @param {authSuccess} callback.onSuccess Called on success with the new session.\n * @returns {void}\n */;\n _proto.initiateAuth = function initiateAuth(authDetails, callback) {\n var _this = this;\n var authParameters = authDetails.getAuthParameters();\n authParameters.USERNAME = this.username;\n var clientMetaData = Object.keys(authDetails.getValidationData()).length !== 0 ? authDetails.getValidationData() : authDetails.getClientMetadata();\n var jsonReq = {\n AuthFlow: 'CUSTOM_AUTH',\n ClientId: this.pool.getClientId(),\n AuthParameters: authParameters,\n ClientMetadata: clientMetaData\n };\n if (this.getUserContextData()) {\n jsonReq.UserContextData = this.getUserContextData();\n }\n this.client.request('InitiateAuth', jsonReq, function (err, data) {\n if (err) {\n return callback.onFailure(err);\n }\n var challengeName = data.ChallengeName;\n var challengeParameters = data.ChallengeParameters;\n if (challengeName === 'CUSTOM_CHALLENGE') {\n _this.Session = data.Session;\n return callback.customChallenge(challengeParameters);\n }\n _this.signInUserSession = _this.getCognitoUserSession(data.AuthenticationResult);\n _this.cacheTokens();\n return callback.onSuccess(_this.signInUserSession);\n });\n }\n\n /**\n * This is used for authenticating the user.\n * stuff\n * @param {AuthenticationDetails} authDetails Contains the authentication data\n * @param {object} callback Result callback map.\n * @param {onFailure} callback.onFailure Called on any error.\n * @param {newPasswordRequired} callback.newPasswordRequired new\n * password and any required attributes are required to continue\n * @param {mfaRequired} callback.mfaRequired MFA code\n * required to continue.\n * @param {customChallenge} callback.customChallenge Custom challenge\n * response required to continue.\n * @param {authSuccess} callback.onSuccess Called on success with the new session.\n * @returns {void}\n */;\n _proto.authenticateUser = function authenticateUser(authDetails, callback) {\n if (this.authenticationFlowType === 'USER_PASSWORD_AUTH') {\n return this.authenticateUserPlainUsernamePassword(authDetails, callback);\n } else if (this.authenticationFlowType === 'USER_SRP_AUTH' || this.authenticationFlowType === 'CUSTOM_AUTH') {\n return this.authenticateUserDefaultAuth(authDetails, callback);\n }\n return callback.onFailure(new Error('Authentication flow type is invalid.'));\n }\n\n /**\n * PRIVATE ONLY: This is an internal only method and should not\n * be directly called by the consumers.\n * It calls the AuthenticationHelper for SRP related\n * stuff\n * @param {AuthenticationDetails} authDetails Contains the authentication data\n * @param {object} callback Result callback map.\n * @param {onFailure} callback.onFailure Called on any error.\n * @param {newPasswordRequired} callback.newPasswordRequired new\n * password and any required attributes are required to continue\n * @param {mfaRequired} callback.mfaRequired MFA code\n * required to continue.\n * @param {customChallenge} callback.customChallenge Custom challenge\n * response required to continue.\n * @param {authSuccess} callback.onSuccess Called on success with the new session.\n * @returns {void}\n */;\n _proto.authenticateUserDefaultAuth = function authenticateUserDefaultAuth(authDetails, callback) {\n var _this2 = this;\n var authenticationHelper = new AuthenticationHelper(this.pool.getUserPoolName());\n var dateHelper = new DateHelper();\n var serverBValue;\n var salt;\n var authParameters = {};\n if (this.deviceKey != null) {\n authParameters.DEVICE_KEY = this.deviceKey;\n }\n authParameters.USERNAME = this.username;\n authenticationHelper.getLargeAValue(function (errOnAValue, aValue) {\n // getLargeAValue callback start\n if (errOnAValue) {\n callback.onFailure(errOnAValue);\n }\n authParameters.SRP_A = aValue.toString(16);\n if (_this2.authenticationFlowType === 'CUSTOM_AUTH') {\n authParameters.CHALLENGE_NAME = 'SRP_A';\n }\n var clientMetaData = Object.keys(authDetails.getValidationData()).length !== 0 ? authDetails.getValidationData() : authDetails.getClientMetadata();\n var jsonReq = {\n AuthFlow: _this2.authenticationFlowType,\n ClientId: _this2.pool.getClientId(),\n AuthParameters: authParameters,\n ClientMetadata: clientMetaData\n };\n if (_this2.getUserContextData(_this2.username)) {\n jsonReq.UserContextData = _this2.getUserContextData(_this2.username);\n }\n _this2.client.request('InitiateAuth', jsonReq, function (err, data) {\n if (err) {\n return callback.onFailure(err);\n }\n var challengeParameters = data.ChallengeParameters;\n _this2.username = challengeParameters.USER_ID_FOR_SRP;\n _this2.userDataKey = _this2.keyPrefix + \".\" + _this2.username + \".userData\";\n serverBValue = new BigInteger(challengeParameters.SRP_B, 16);\n salt = new BigInteger(challengeParameters.SALT, 16);\n _this2.getCachedDeviceKeyAndPassword();\n authenticationHelper.getPasswordAuthenticationKey(_this2.username, authDetails.getPassword(), serverBValue, salt, function (errOnHkdf, hkdf) {\n // getPasswordAuthenticationKey callback start\n if (errOnHkdf) {\n callback.onFailure(errOnHkdf);\n }\n var dateNow = dateHelper.getNowString();\n var concatBuffer = Buffer.concat([Buffer.from(_this2.pool.getUserPoolName(), 'utf8'), Buffer.from(_this2.username, 'utf8'), Buffer.from(challengeParameters.SECRET_BLOCK, 'base64'), Buffer.from(dateNow, 'utf8')]);\n var awsCryptoHash = new Sha256(hkdf);\n awsCryptoHash.update(concatBuffer);\n var resultFromAWSCrypto = awsCryptoHash.digestSync();\n var signatureString = Buffer.from(resultFromAWSCrypto).toString('base64');\n var challengeResponses = {};\n challengeResponses.USERNAME = _this2.username;\n challengeResponses.PASSWORD_CLAIM_SECRET_BLOCK = challengeParameters.SECRET_BLOCK;\n challengeResponses.TIMESTAMP = dateNow;\n challengeResponses.PASSWORD_CLAIM_SIGNATURE = signatureString;\n if (_this2.deviceKey != null) {\n challengeResponses.DEVICE_KEY = _this2.deviceKey;\n }\n var respondToAuthChallenge = function respondToAuthChallenge(challenge, challengeCallback) {\n return _this2.client.request('RespondToAuthChallenge', challenge, function (errChallenge, dataChallenge) {\n if (errChallenge && errChallenge.code === 'ResourceNotFoundException' && errChallenge.message.toLowerCase().indexOf('device') !== -1) {\n challengeResponses.DEVICE_KEY = null;\n _this2.deviceKey = null;\n _this2.randomPassword = null;\n _this2.deviceGroupKey = null;\n _this2.clearCachedDeviceKeyAndPassword();\n return respondToAuthChallenge(challenge, challengeCallback);\n }\n return challengeCallback(errChallenge, dataChallenge);\n });\n };\n var jsonReqResp = {\n ChallengeName: 'PASSWORD_VERIFIER',\n ClientId: _this2.pool.getClientId(),\n ChallengeResponses: challengeResponses,\n Session: data.Session,\n ClientMetadata: clientMetaData\n };\n if (_this2.getUserContextData()) {\n jsonReqResp.UserContextData = _this2.getUserContextData();\n }\n respondToAuthChallenge(jsonReqResp, function (errAuthenticate, dataAuthenticate) {\n if (errAuthenticate) {\n return callback.onFailure(errAuthenticate);\n }\n return _this2.authenticateUserInternal(dataAuthenticate, authenticationHelper, callback);\n });\n return undefined;\n // getPasswordAuthenticationKey callback end\n });\n return undefined;\n });\n // getLargeAValue callback end\n });\n }\n\n /**\n * PRIVATE ONLY: This is an internal only method and should not\n * be directly called by the consumers.\n * @param {AuthenticationDetails} authDetails Contains the authentication data.\n * @param {object} callback Result callback map.\n * @param {onFailure} callback.onFailure Called on any error.\n * @param {mfaRequired} callback.mfaRequired MFA code\n * required to continue.\n * @param {authSuccess} callback.onSuccess Called on success with the new session.\n * @returns {void}\n */;\n _proto.authenticateUserPlainUsernamePassword = function authenticateUserPlainUsernamePassword(authDetails, callback) {\n var _this3 = this;\n var authParameters = {};\n authParameters.USERNAME = this.username;\n authParameters.PASSWORD = authDetails.getPassword();\n if (!authParameters.PASSWORD) {\n callback.onFailure(new Error('PASSWORD parameter is required'));\n return;\n }\n var authenticationHelper = new AuthenticationHelper(this.pool.getUserPoolName());\n this.getCachedDeviceKeyAndPassword();\n if (this.deviceKey != null) {\n authParameters.DEVICE_KEY = this.deviceKey;\n }\n var clientMetaData = Object.keys(authDetails.getValidationData()).length !== 0 ? authDetails.getValidationData() : authDetails.getClientMetadata();\n var jsonReq = {\n AuthFlow: 'USER_PASSWORD_AUTH',\n ClientId: this.pool.getClientId(),\n AuthParameters: authParameters,\n ClientMetadata: clientMetaData\n };\n if (this.getUserContextData(this.username)) {\n jsonReq.UserContextData = this.getUserContextData(this.username);\n }\n // USER_PASSWORD_AUTH happens in a single round-trip: client sends userName and password,\n // Cognito UserPools verifies password and returns tokens.\n this.client.request('InitiateAuth', jsonReq, function (err, authResult) {\n if (err) {\n return callback.onFailure(err);\n }\n return _this3.authenticateUserInternal(authResult, authenticationHelper, callback);\n });\n }\n\n /**\n * PRIVATE ONLY: This is an internal only method and should not\n * be directly called by the consumers.\n * @param {object} dataAuthenticate authentication data\n * @param {object} authenticationHelper helper created\n * @param {callback} callback passed on from caller\n * @returns {void}\n */;\n _proto.authenticateUserInternal = function authenticateUserInternal(dataAuthenticate, authenticationHelper, callback) {\n var _this4 = this;\n var challengeName = dataAuthenticate.ChallengeName;\n var challengeParameters = dataAuthenticate.ChallengeParameters;\n if (challengeName === 'SMS_MFA') {\n this.Session = dataAuthenticate.Session;\n return callback.mfaRequired(challengeName, challengeParameters);\n }\n if (challengeName === 'SELECT_MFA_TYPE') {\n this.Session = dataAuthenticate.Session;\n return callback.selectMFAType(challengeName, challengeParameters);\n }\n if (challengeName === 'MFA_SETUP') {\n this.Session = dataAuthenticate.Session;\n return callback.mfaSetup(challengeName, challengeParameters);\n }\n if (challengeName === 'SOFTWARE_TOKEN_MFA') {\n this.Session = dataAuthenticate.Session;\n return callback.totpRequired(challengeName, challengeParameters);\n }\n if (challengeName === 'CUSTOM_CHALLENGE') {\n this.Session = dataAuthenticate.Session;\n return callback.customChallenge(challengeParameters);\n }\n if (challengeName === 'NEW_PASSWORD_REQUIRED') {\n this.Session = dataAuthenticate.Session;\n var userAttributes = null;\n var rawRequiredAttributes = null;\n var requiredAttributes = [];\n var userAttributesPrefix = authenticationHelper.getNewPasswordRequiredChallengeUserAttributePrefix();\n if (challengeParameters) {\n userAttributes = JSON.parse(dataAuthenticate.ChallengeParameters.userAttributes);\n rawRequiredAttributes = JSON.parse(dataAuthenticate.ChallengeParameters.requiredAttributes);\n }\n if (rawRequiredAttributes) {\n for (var i = 0; i < rawRequiredAttributes.length; i++) {\n requiredAttributes[i] = rawRequiredAttributes[i].substr(userAttributesPrefix.length);\n }\n }\n return callback.newPasswordRequired(userAttributes, requiredAttributes);\n }\n if (challengeName === 'DEVICE_SRP_AUTH') {\n this.Session = dataAuthenticate.Session;\n this.getDeviceResponse(callback);\n return undefined;\n }\n this.signInUserSession = this.getCognitoUserSession(dataAuthenticate.AuthenticationResult);\n this.challengeName = challengeName;\n this.cacheTokens();\n var newDeviceMetadata = dataAuthenticate.AuthenticationResult.NewDeviceMetadata;\n if (newDeviceMetadata == null) {\n return callback.onSuccess(this.signInUserSession);\n }\n authenticationHelper.generateHashDevice(dataAuthenticate.AuthenticationResult.NewDeviceMetadata.DeviceGroupKey, dataAuthenticate.AuthenticationResult.NewDeviceMetadata.DeviceKey, function (errGenHash) {\n if (errGenHash) {\n return callback.onFailure(errGenHash);\n }\n var deviceSecretVerifierConfig = {\n Salt: Buffer.from(authenticationHelper.getSaltDevices(), 'hex').toString('base64'),\n PasswordVerifier: Buffer.from(authenticationHelper.getVerifierDevices(), 'hex').toString('base64')\n };\n _this4.verifierDevices = deviceSecretVerifierConfig.PasswordVerifier;\n _this4.deviceGroupKey = newDeviceMetadata.DeviceGroupKey;\n _this4.randomPassword = authenticationHelper.getRandomPassword();\n _this4.client.request('ConfirmDevice', {\n DeviceKey: newDeviceMetadata.DeviceKey,\n AccessToken: _this4.signInUserSession.getAccessToken().getJwtToken(),\n DeviceSecretVerifierConfig: deviceSecretVerifierConfig,\n DeviceName: userAgent\n }, function (errConfirm, dataConfirm) {\n if (errConfirm) {\n return callback.onFailure(errConfirm);\n }\n _this4.deviceKey = dataAuthenticate.AuthenticationResult.NewDeviceMetadata.DeviceKey;\n _this4.cacheDeviceKeyAndPassword();\n if (dataConfirm.UserConfirmationNecessary === true) {\n return callback.onSuccess(_this4.signInUserSession, dataConfirm.UserConfirmationNecessary);\n }\n return callback.onSuccess(_this4.signInUserSession);\n });\n return undefined;\n });\n return undefined;\n }\n\n /**\n * This method is user to complete the NEW_PASSWORD_REQUIRED challenge.\n * Pass the new password with any new user attributes to be updated.\n * User attribute keys must be of format userAttributes..\n * @param {string} newPassword new password for this user\n * @param {object} requiredAttributeData map with values for all required attributes\n * @param {object} callback Result callback map.\n * @param {onFailure} callback.onFailure Called on any error.\n * @param {mfaRequired} callback.mfaRequired MFA code required to continue.\n * @param {customChallenge} callback.customChallenge Custom challenge\n * response required to continue.\n * @param {authSuccess} callback.onSuccess Called on success with the new session.\n * @param {ClientMetadata} clientMetadata object which is passed from client to Cognito Lambda trigger\n * @returns {void}\n */;\n _proto.completeNewPasswordChallenge = function completeNewPasswordChallenge(newPassword, requiredAttributeData, callback, clientMetadata) {\n var _this5 = this;\n if (!newPassword) {\n return callback.onFailure(new Error('New password is required.'));\n }\n var authenticationHelper = new AuthenticationHelper(this.pool.getUserPoolName());\n var userAttributesPrefix = authenticationHelper.getNewPasswordRequiredChallengeUserAttributePrefix();\n var finalUserAttributes = {};\n if (requiredAttributeData) {\n Object.keys(requiredAttributeData).forEach(function (key) {\n finalUserAttributes[userAttributesPrefix + key] = requiredAttributeData[key];\n });\n }\n finalUserAttributes.NEW_PASSWORD = newPassword;\n finalUserAttributes.USERNAME = this.username;\n var jsonReq = {\n ChallengeName: 'NEW_PASSWORD_REQUIRED',\n ClientId: this.pool.getClientId(),\n ChallengeResponses: finalUserAttributes,\n Session: this.Session,\n ClientMetadata: clientMetadata\n };\n if (this.getUserContextData()) {\n jsonReq.UserContextData = this.getUserContextData();\n }\n this.client.request('RespondToAuthChallenge', jsonReq, function (errAuthenticate, dataAuthenticate) {\n if (errAuthenticate) {\n return callback.onFailure(errAuthenticate);\n }\n return _this5.authenticateUserInternal(dataAuthenticate, authenticationHelper, callback);\n });\n return undefined;\n }\n\n /**\n * This is used to get a session using device authentication. It is called at the end of user\n * authentication\n *\n * @param {object} callback Result callback map.\n * @param {onFailure} callback.onFailure Called on any error.\n * @param {authSuccess} callback.onSuccess Called on success with the new session.\n * @param {ClientMetadata} clientMetadata object which is passed from client to Cognito Lambda trigger\n * @returns {void}\n * @private\n */;\n _proto.getDeviceResponse = function getDeviceResponse(callback, clientMetadata) {\n var _this6 = this;\n var authenticationHelper = new AuthenticationHelper(this.deviceGroupKey);\n var dateHelper = new DateHelper();\n var authParameters = {};\n authParameters.USERNAME = this.username;\n authParameters.DEVICE_KEY = this.deviceKey;\n authenticationHelper.getLargeAValue(function (errAValue, aValue) {\n // getLargeAValue callback start\n if (errAValue) {\n callback.onFailure(errAValue);\n }\n authParameters.SRP_A = aValue.toString(16);\n var jsonReq = {\n ChallengeName: 'DEVICE_SRP_AUTH',\n ClientId: _this6.pool.getClientId(),\n ChallengeResponses: authParameters,\n ClientMetadata: clientMetadata,\n Session: _this6.Session\n };\n if (_this6.getUserContextData()) {\n jsonReq.UserContextData = _this6.getUserContextData();\n }\n _this6.client.request('RespondToAuthChallenge', jsonReq, function (err, data) {\n if (err) {\n return callback.onFailure(err);\n }\n var challengeParameters = data.ChallengeParameters;\n var serverBValue = new BigInteger(challengeParameters.SRP_B, 16);\n var salt = new BigInteger(challengeParameters.SALT, 16);\n authenticationHelper.getPasswordAuthenticationKey(_this6.deviceKey, _this6.randomPassword, serverBValue, salt, function (errHkdf, hkdf) {\n // getPasswordAuthenticationKey callback start\n if (errHkdf) {\n return callback.onFailure(errHkdf);\n }\n var dateNow = dateHelper.getNowString();\n var concatBuffer = Buffer.concat([Buffer.from(_this6.deviceGroupKey, 'utf8'), Buffer.from(_this6.deviceKey, 'utf8'), Buffer.from(challengeParameters.SECRET_BLOCK, 'base64'), Buffer.from(dateNow, 'utf8')]);\n var awsCryptoHash = new Sha256(hkdf);\n awsCryptoHash.update(concatBuffer);\n var resultFromAWSCrypto = awsCryptoHash.digestSync();\n var signatureString = Buffer.from(resultFromAWSCrypto).toString('base64');\n var challengeResponses = {};\n challengeResponses.USERNAME = _this6.username;\n challengeResponses.PASSWORD_CLAIM_SECRET_BLOCK = challengeParameters.SECRET_BLOCK;\n challengeResponses.TIMESTAMP = dateNow;\n challengeResponses.PASSWORD_CLAIM_SIGNATURE = signatureString;\n challengeResponses.DEVICE_KEY = _this6.deviceKey;\n var jsonReqResp = {\n ChallengeName: 'DEVICE_PASSWORD_VERIFIER',\n ClientId: _this6.pool.getClientId(),\n ChallengeResponses: challengeResponses,\n Session: data.Session\n };\n if (_this6.getUserContextData()) {\n jsonReqResp.UserContextData = _this6.getUserContextData();\n }\n _this6.client.request('RespondToAuthChallenge', jsonReqResp, function (errAuthenticate, dataAuthenticate) {\n if (errAuthenticate) {\n return callback.onFailure(errAuthenticate);\n }\n _this6.signInUserSession = _this6.getCognitoUserSession(dataAuthenticate.AuthenticationResult);\n _this6.cacheTokens();\n return callback.onSuccess(_this6.signInUserSession);\n });\n return undefined;\n // getPasswordAuthenticationKey callback end\n });\n return undefined;\n });\n // getLargeAValue callback end\n });\n }\n\n /**\n * This is used for a certain user to confirm the registration by using a confirmation code\n * @param {string} confirmationCode Code entered by user.\n * @param {bool} forceAliasCreation Allow migrating from an existing email / phone number.\n * @param {nodeCallback} callback Called on success or error.\n * @param {ClientMetadata} clientMetadata object which is passed from client to Cognito Lambda trigger\n * @returns {void}\n */;\n _proto.confirmRegistration = function confirmRegistration(confirmationCode, forceAliasCreation, callback, clientMetadata) {\n var jsonReq = {\n ClientId: this.pool.getClientId(),\n ConfirmationCode: confirmationCode,\n Username: this.username,\n ForceAliasCreation: forceAliasCreation,\n ClientMetadata: clientMetadata\n };\n if (this.getUserContextData()) {\n jsonReq.UserContextData = this.getUserContextData();\n }\n this.client.request('ConfirmSignUp', jsonReq, function (err) {\n if (err) {\n return callback(err, null);\n }\n return callback(null, 'SUCCESS');\n });\n }\n\n /**\n * This is used by the user once he has the responses to a custom challenge\n * @param {string} answerChallenge The custom challenge answer.\n * @param {object} callback Result callback map.\n * @param {onFailure} callback.onFailure Called on any error.\n * @param {customChallenge} callback.customChallenge\n * Custom challenge response required to continue.\n * @param {authSuccess} callback.onSuccess Called on success with the new session.\n * @param {ClientMetadata} clientMetadata object which is passed from client to Cognito Lambda trigger\n * @returns {void}\n */;\n _proto.sendCustomChallengeAnswer = function sendCustomChallengeAnswer(answerChallenge, callback, clientMetadata) {\n var _this7 = this;\n var challengeResponses = {};\n challengeResponses.USERNAME = this.username;\n challengeResponses.ANSWER = answerChallenge;\n var authenticationHelper = new AuthenticationHelper(this.pool.getUserPoolName());\n this.getCachedDeviceKeyAndPassword();\n if (this.deviceKey != null) {\n challengeResponses.DEVICE_KEY = this.deviceKey;\n }\n var jsonReq = {\n ChallengeName: 'CUSTOM_CHALLENGE',\n ChallengeResponses: challengeResponses,\n ClientId: this.pool.getClientId(),\n Session: this.Session,\n ClientMetadata: clientMetadata\n };\n if (this.getUserContextData()) {\n jsonReq.UserContextData = this.getUserContextData();\n }\n this.client.request('RespondToAuthChallenge', jsonReq, function (err, data) {\n if (err) {\n return callback.onFailure(err);\n }\n return _this7.authenticateUserInternal(data, authenticationHelper, callback);\n });\n }\n\n /**\n * This is used by the user once he has an MFA code\n * @param {string} confirmationCode The MFA code entered by the user.\n * @param {object} callback Result callback map.\n * @param {string} mfaType The mfa we are replying to.\n * @param {onFailure} callback.onFailure Called on any error.\n * @param {authSuccess} callback.onSuccess Called on success with the new session.\n * @param {ClientMetadata} clientMetadata object which is passed from client to Cognito Lambda trigger\n * @returns {void}\n */;\n _proto.sendMFACode = function sendMFACode(confirmationCode, callback, mfaType, clientMetadata) {\n var _this8 = this;\n var challengeResponses = {};\n challengeResponses.USERNAME = this.username;\n challengeResponses.SMS_MFA_CODE = confirmationCode;\n var mfaTypeSelection = mfaType || 'SMS_MFA';\n if (mfaTypeSelection === 'SOFTWARE_TOKEN_MFA') {\n challengeResponses.SOFTWARE_TOKEN_MFA_CODE = confirmationCode;\n }\n if (this.deviceKey != null) {\n challengeResponses.DEVICE_KEY = this.deviceKey;\n }\n var jsonReq = {\n ChallengeName: mfaTypeSelection,\n ChallengeResponses: challengeResponses,\n ClientId: this.pool.getClientId(),\n Session: this.Session,\n ClientMetadata: clientMetadata\n };\n if (this.getUserContextData()) {\n jsonReq.UserContextData = this.getUserContextData();\n }\n this.client.request('RespondToAuthChallenge', jsonReq, function (err, dataAuthenticate) {\n if (err) {\n return callback.onFailure(err);\n }\n var challengeName = dataAuthenticate.ChallengeName;\n if (challengeName === 'DEVICE_SRP_AUTH') {\n _this8.getDeviceResponse(callback);\n return undefined;\n }\n _this8.signInUserSession = _this8.getCognitoUserSession(dataAuthenticate.AuthenticationResult);\n _this8.cacheTokens();\n if (dataAuthenticate.AuthenticationResult.NewDeviceMetadata == null) {\n return callback.onSuccess(_this8.signInUserSession);\n }\n var authenticationHelper = new AuthenticationHelper(_this8.pool.getUserPoolName());\n authenticationHelper.generateHashDevice(dataAuthenticate.AuthenticationResult.NewDeviceMetadata.DeviceGroupKey, dataAuthenticate.AuthenticationResult.NewDeviceMetadata.DeviceKey, function (errGenHash) {\n if (errGenHash) {\n return callback.onFailure(errGenHash);\n }\n var deviceSecretVerifierConfig = {\n Salt: Buffer.from(authenticationHelper.getSaltDevices(), 'hex').toString('base64'),\n PasswordVerifier: Buffer.from(authenticationHelper.getVerifierDevices(), 'hex').toString('base64')\n };\n _this8.verifierDevices = deviceSecretVerifierConfig.PasswordVerifier;\n _this8.deviceGroupKey = dataAuthenticate.AuthenticationResult.NewDeviceMetadata.DeviceGroupKey;\n _this8.randomPassword = authenticationHelper.getRandomPassword();\n _this8.client.request('ConfirmDevice', {\n DeviceKey: dataAuthenticate.AuthenticationResult.NewDeviceMetadata.DeviceKey,\n AccessToken: _this8.signInUserSession.getAccessToken().getJwtToken(),\n DeviceSecretVerifierConfig: deviceSecretVerifierConfig,\n DeviceName: userAgent\n }, function (errConfirm, dataConfirm) {\n if (errConfirm) {\n return callback.onFailure(errConfirm);\n }\n _this8.deviceKey = dataAuthenticate.AuthenticationResult.NewDeviceMetadata.DeviceKey;\n _this8.cacheDeviceKeyAndPassword();\n if (dataConfirm.UserConfirmationNecessary === true) {\n return callback.onSuccess(_this8.signInUserSession, dataConfirm.UserConfirmationNecessary);\n }\n return callback.onSuccess(_this8.signInUserSession);\n });\n return undefined;\n });\n return undefined;\n });\n }\n\n /**\n * This is used by an authenticated user to change the current password\n * @param {string} oldUserPassword The current password.\n * @param {string} newUserPassword The requested new password.\n * @param {nodeCallback} callback Called on success or error.\n * @param {ClientMetadata} clientMetadata object which is passed from client to Cognito Lambda trigger\n * @returns {void}\n */;\n _proto.changePassword = function changePassword(oldUserPassword, newUserPassword, callback, clientMetadata) {\n if (!(this.signInUserSession != null && this.signInUserSession.isValid())) {\n return callback(new Error('User is not authenticated'), null);\n }\n this.client.request('ChangePassword', {\n PreviousPassword: oldUserPassword,\n ProposedPassword: newUserPassword,\n AccessToken: this.signInUserSession.getAccessToken().getJwtToken(),\n ClientMetadata: clientMetadata\n }, function (err) {\n if (err) {\n return callback(err, null);\n }\n return callback(null, 'SUCCESS');\n });\n return undefined;\n }\n\n /**\n * This is used by an authenticated user to enable MFA for itself\n * @deprecated\n * @param {nodeCallback} callback Called on success or error.\n * @returns {void}\n */;\n _proto.enableMFA = function enableMFA(callback) {\n if (this.signInUserSession == null || !this.signInUserSession.isValid()) {\n return callback(new Error('User is not authenticated'), null);\n }\n var mfaOptions = [];\n var mfaEnabled = {\n DeliveryMedium: 'SMS',\n AttributeName: 'phone_number'\n };\n mfaOptions.push(mfaEnabled);\n this.client.request('SetUserSettings', {\n MFAOptions: mfaOptions,\n AccessToken: this.signInUserSession.getAccessToken().getJwtToken()\n }, function (err) {\n if (err) {\n return callback(err, null);\n }\n return callback(null, 'SUCCESS');\n });\n return undefined;\n }\n\n /**\n * This is used by an authenticated user to enable MFA for itself\n * @param {IMfaSettings} smsMfaSettings the sms mfa settings\n * @param {IMFASettings} softwareTokenMfaSettings the software token mfa settings\n * @param {nodeCallback} callback Called on success or error.\n * @returns {void}\n */;\n _proto.setUserMfaPreference = function setUserMfaPreference(smsMfaSettings, softwareTokenMfaSettings, callback) {\n if (this.signInUserSession == null || !this.signInUserSession.isValid()) {\n return callback(new Error('User is not authenticated'), null);\n }\n this.client.request('SetUserMFAPreference', {\n SMSMfaSettings: smsMfaSettings,\n SoftwareTokenMfaSettings: softwareTokenMfaSettings,\n AccessToken: this.signInUserSession.getAccessToken().getJwtToken()\n }, function (err) {\n if (err) {\n return callback(err, null);\n }\n return callback(null, 'SUCCESS');\n });\n return undefined;\n }\n\n /**\n * This is used by an authenticated user to disable MFA for itself\n * @deprecated\n * @param {nodeCallback} callback Called on success or error.\n * @returns {void}\n */;\n _proto.disableMFA = function disableMFA(callback) {\n if (this.signInUserSession == null || !this.signInUserSession.isValid()) {\n return callback(new Error('User is not authenticated'), null);\n }\n var mfaOptions = [];\n this.client.request('SetUserSettings', {\n MFAOptions: mfaOptions,\n AccessToken: this.signInUserSession.getAccessToken().getJwtToken()\n }, function (err) {\n if (err) {\n return callback(err, null);\n }\n return callback(null, 'SUCCESS');\n });\n return undefined;\n }\n\n /**\n * This is used by an authenticated user to delete itself\n * @param {nodeCallback} callback Called on success or error.\n * @param {ClientMetadata} clientMetadata object which is passed from client to Cognito Lambda trigger\n * @returns {void}\n */;\n _proto.deleteUser = function deleteUser(callback, clientMetadata) {\n var _this9 = this;\n if (this.signInUserSession == null || !this.signInUserSession.isValid()) {\n return callback(new Error('User is not authenticated'), null);\n }\n this.client.request('DeleteUser', {\n AccessToken: this.signInUserSession.getAccessToken().getJwtToken(),\n ClientMetadata: clientMetadata\n }, function (err) {\n if (err) {\n return callback(err, null);\n }\n _this9.clearCachedUser();\n return callback(null, 'SUCCESS');\n });\n return undefined;\n }\n\n /**\n * @typedef {CognitoUserAttribute | { Name:string, Value:string }} AttributeArg\n */\n /**\n * This is used by an authenticated user to change a list of attributes\n * @param {AttributeArg[]} attributes A list of the new user attributes.\n * @param {nodeCallback} callback Called on success or error.\n * @param {ClientMetadata} clientMetadata object which is passed from client to Cognito Lambda trigger\n * @returns {void}\n */;\n _proto.updateAttributes = function updateAttributes(attributes, callback, clientMetadata) {\n var _this10 = this;\n if (this.signInUserSession == null || !this.signInUserSession.isValid()) {\n return callback(new Error('User is not authenticated'), null);\n }\n this.client.request('UpdateUserAttributes', {\n AccessToken: this.signInUserSession.getAccessToken().getJwtToken(),\n UserAttributes: attributes,\n ClientMetadata: clientMetadata\n }, function (err, result) {\n if (err) {\n return callback(err, null);\n }\n\n // update cached user\n return _this10.getUserData(function () {\n return callback(null, 'SUCCESS', result);\n }, {\n bypassCache: true\n });\n });\n return undefined;\n }\n\n /**\n * This is used by an authenticated user to get a list of attributes\n * @param {nodeCallback} callback Called on success or error.\n * @returns {void}\n */;\n _proto.getUserAttributes = function getUserAttributes(callback) {\n if (!(this.signInUserSession != null && this.signInUserSession.isValid())) {\n return callback(new Error('User is not authenticated'), null);\n }\n this.client.request('GetUser', {\n AccessToken: this.signInUserSession.getAccessToken().getJwtToken()\n }, function (err, userData) {\n if (err) {\n return callback(err, null);\n }\n var attributeList = [];\n for (var i = 0; i < userData.UserAttributes.length; i++) {\n var attribute = {\n Name: userData.UserAttributes[i].Name,\n Value: userData.UserAttributes[i].Value\n };\n var userAttribute = new CognitoUserAttribute(attribute);\n attributeList.push(userAttribute);\n }\n return callback(null, attributeList);\n });\n return undefined;\n }\n\n /**\n * This was previously used by an authenticated user to get MFAOptions,\n * but no longer returns a meaningful response. Refer to the documentation for\n * how to setup and use MFA: https://docs.amplify.aws/lib/auth/mfa/q/platform/js\n * @deprecated\n * @param {nodeCallback} callback Called on success or error.\n * @returns {void}\n */;\n _proto.getMFAOptions = function getMFAOptions(callback) {\n if (!(this.signInUserSession != null && this.signInUserSession.isValid())) {\n return callback(new Error('User is not authenticated'), null);\n }\n this.client.request('GetUser', {\n AccessToken: this.signInUserSession.getAccessToken().getJwtToken()\n }, function (err, userData) {\n if (err) {\n return callback(err, null);\n }\n return callback(null, userData.MFAOptions);\n });\n return undefined;\n }\n\n /**\n * PRIVATE ONLY: This is an internal only method and should not\n * be directly called by the consumers.\n */;\n _proto.createGetUserRequest = function createGetUserRequest() {\n return this.client.promisifyRequest('GetUser', {\n AccessToken: this.signInUserSession.getAccessToken().getJwtToken()\n });\n }\n\n /**\n * PRIVATE ONLY: This is an internal only method and should not\n * be directly called by the consumers.\n */;\n _proto.refreshSessionIfPossible = function refreshSessionIfPossible(options) {\n var _this11 = this;\n if (options === void 0) {\n options = {};\n }\n // best effort, if not possible\n return new Promise(function (resolve) {\n var refresh = _this11.signInUserSession.getRefreshToken();\n if (refresh && refresh.getToken()) {\n _this11.refreshSession(refresh, resolve, options.clientMetadata);\n } else {\n resolve();\n }\n });\n }\n\n /**\n * @typedef {Object} GetUserDataOptions\n * @property {boolean} bypassCache - force getting data from Cognito service\n * @property {Record} clientMetadata - clientMetadata for getSession\n */\n\n /**\n * This is used by an authenticated users to get the userData\n * @param {nodeCallback} callback Called on success or error.\n * @param {GetUserDataOptions} params\n * @returns {void}\n */;\n _proto.getUserData = function getUserData(callback, params) {\n var _this12 = this;\n if (!(this.signInUserSession != null && this.signInUserSession.isValid())) {\n this.clearCachedUserData();\n return callback(new Error('User is not authenticated'), null);\n }\n var userData = this.getUserDataFromCache();\n if (!userData) {\n this.fetchUserData().then(function (data) {\n callback(null, data);\n })[\"catch\"](callback);\n return;\n }\n if (this.isFetchUserDataAndTokenRequired(params)) {\n this.fetchUserData().then(function (data) {\n return _this12.refreshSessionIfPossible(params).then(function () {\n return data;\n });\n }).then(function (data) {\n return callback(null, data);\n })[\"catch\"](callback);\n return;\n }\n try {\n callback(null, JSON.parse(userData));\n return;\n } catch (err) {\n this.clearCachedUserData();\n callback(err, null);\n return;\n }\n }\n\n /**\n *\n * PRIVATE ONLY: This is an internal only method and should not\n * be directly called by the consumers.\n */;\n _proto.getUserDataFromCache = function getUserDataFromCache() {\n var userData = this.storage.getItem(this.userDataKey);\n return userData;\n }\n\n /**\n *\n * PRIVATE ONLY: This is an internal only method and should not\n * be directly called by the consumers.\n */;\n _proto.isFetchUserDataAndTokenRequired = function isFetchUserDataAndTokenRequired(params) {\n var _ref = params || {},\n _ref$bypassCache = _ref.bypassCache,\n bypassCache = _ref$bypassCache === void 0 ? false : _ref$bypassCache;\n return bypassCache;\n }\n /**\n *\n * PRIVATE ONLY: This is an internal only method and should not\n * be directly called by the consumers.\n */;\n _proto.fetchUserData = function fetchUserData() {\n var _this13 = this;\n return this.createGetUserRequest().then(function (data) {\n _this13.cacheUserData(data);\n return data;\n });\n }\n\n /**\n * This is used by an authenticated user to delete a list of attributes\n * @param {string[]} attributeList Names of the attributes to delete.\n * @param {nodeCallback} callback Called on success or error.\n * @returns {void}\n */;\n _proto.deleteAttributes = function deleteAttributes(attributeList, callback) {\n var _this14 = this;\n if (!(this.signInUserSession != null && this.signInUserSession.isValid())) {\n return callback(new Error('User is not authenticated'), null);\n }\n this.client.request('DeleteUserAttributes', {\n UserAttributeNames: attributeList,\n AccessToken: this.signInUserSession.getAccessToken().getJwtToken()\n }, function (err) {\n if (err) {\n return callback(err, null);\n }\n\n // update cached user\n return _this14.getUserData(function () {\n return callback(null, 'SUCCESS');\n }, {\n bypassCache: true\n });\n });\n return undefined;\n }\n\n /**\n * This is used by a user to resend a confirmation code\n * @param {nodeCallback} callback Called on success or error.\n * @param {ClientMetadata} clientMetadata object which is passed from client to Cognito Lambda trigger\n * @returns {void}\n */;\n _proto.resendConfirmationCode = function resendConfirmationCode(callback, clientMetadata) {\n var jsonReq = {\n ClientId: this.pool.getClientId(),\n Username: this.username,\n ClientMetadata: clientMetadata\n };\n this.client.request('ResendConfirmationCode', jsonReq, function (err, result) {\n if (err) {\n return callback(err, null);\n }\n return callback(null, result);\n });\n }\n\n /**\n * @typedef {Object} GetSessionOptions\n * @property {Record} clientMetadata - clientMetadata for getSession\n */\n\n /**\n * This is used to get a session, either from the session object\n * or from the local storage, or by using a refresh token\n *\n * @param {nodeCallback} callback Called on success or error.\n * @param {GetSessionOptions} options\n * @returns {void}\n */;\n _proto.getSession = function getSession(callback, options) {\n if (options === void 0) {\n options = {};\n }\n if (this.username == null) {\n return callback(new Error('Username is null. Cannot retrieve a new session'), null);\n }\n if (this.signInUserSession != null && this.signInUserSession.isValid()) {\n return callback(null, this.signInUserSession);\n }\n var keyPrefix = \"CognitoIdentityServiceProvider.\" + this.pool.getClientId() + \".\" + this.username;\n var idTokenKey = keyPrefix + \".idToken\";\n var accessTokenKey = keyPrefix + \".accessToken\";\n var refreshTokenKey = keyPrefix + \".refreshToken\";\n var clockDriftKey = keyPrefix + \".clockDrift\";\n if (this.storage.getItem(idTokenKey)) {\n var idToken = new CognitoIdToken({\n IdToken: this.storage.getItem(idTokenKey)\n });\n var accessToken = new CognitoAccessToken({\n AccessToken: this.storage.getItem(accessTokenKey)\n });\n var refreshToken = new CognitoRefreshToken({\n RefreshToken: this.storage.getItem(refreshTokenKey)\n });\n var clockDrift = parseInt(this.storage.getItem(clockDriftKey), 0) || 0;\n var sessionData = {\n IdToken: idToken,\n AccessToken: accessToken,\n RefreshToken: refreshToken,\n ClockDrift: clockDrift\n };\n var cachedSession = new CognitoUserSession(sessionData);\n if (cachedSession.isValid()) {\n this.signInUserSession = cachedSession;\n return callback(null, this.signInUserSession);\n }\n if (!refreshToken.getToken()) {\n return callback(new Error('Cannot retrieve a new session. Please authenticate.'), null);\n }\n this.refreshSession(refreshToken, callback, options.clientMetadata);\n } else {\n callback(new Error('Local storage is missing an ID Token, Please authenticate'), null);\n }\n return undefined;\n }\n\n /**\n * This uses the refreshToken to retrieve a new session\n * @param {CognitoRefreshToken} refreshToken A previous session's refresh token.\n * @param {nodeCallback} callback Called on success or error.\n * @param {ClientMetadata} clientMetadata object which is passed from client to Cognito Lambda trigger\n * @returns {void}\n */;\n _proto.refreshSession = function refreshSession(refreshToken, callback, clientMetadata) {\n var _this15 = this;\n var wrappedCallback = this.pool.wrapRefreshSessionCallback ? this.pool.wrapRefreshSessionCallback(callback) : callback;\n var authParameters = {};\n authParameters.REFRESH_TOKEN = refreshToken.getToken();\n var keyPrefix = \"CognitoIdentityServiceProvider.\" + this.pool.getClientId();\n var lastUserKey = keyPrefix + \".LastAuthUser\";\n if (this.storage.getItem(lastUserKey)) {\n this.username = this.storage.getItem(lastUserKey);\n var deviceKeyKey = keyPrefix + \".\" + this.username + \".deviceKey\";\n this.deviceKey = this.storage.getItem(deviceKeyKey);\n authParameters.DEVICE_KEY = this.deviceKey;\n }\n var jsonReq = {\n ClientId: this.pool.getClientId(),\n AuthFlow: 'REFRESH_TOKEN_AUTH',\n AuthParameters: authParameters,\n ClientMetadata: clientMetadata\n };\n if (this.getUserContextData()) {\n jsonReq.UserContextData = this.getUserContextData();\n }\n this.client.request('InitiateAuth', jsonReq, function (err, authResult) {\n if (err) {\n if (err.code === 'NotAuthorizedException') {\n _this15.clearCachedUser();\n }\n return wrappedCallback(err, null);\n }\n if (authResult) {\n var authenticationResult = authResult.AuthenticationResult;\n if (!Object.prototype.hasOwnProperty.call(authenticationResult, 'RefreshToken')) {\n authenticationResult.RefreshToken = refreshToken.getToken();\n }\n _this15.signInUserSession = _this15.getCognitoUserSession(authenticationResult);\n _this15.cacheTokens();\n return wrappedCallback(null, _this15.signInUserSession);\n }\n return undefined;\n });\n }\n\n /**\n * This is used to save the session tokens to local storage\n * @returns {void}\n */;\n _proto.cacheTokens = function cacheTokens() {\n var keyPrefix = \"CognitoIdentityServiceProvider.\" + this.pool.getClientId();\n var idTokenKey = keyPrefix + \".\" + this.username + \".idToken\";\n var accessTokenKey = keyPrefix + \".\" + this.username + \".accessToken\";\n var refreshTokenKey = keyPrefix + \".\" + this.username + \".refreshToken\";\n var clockDriftKey = keyPrefix + \".\" + this.username + \".clockDrift\";\n var lastUserKey = keyPrefix + \".LastAuthUser\";\n this.storage.setItem(idTokenKey, this.signInUserSession.getIdToken().getJwtToken());\n this.storage.setItem(accessTokenKey, this.signInUserSession.getAccessToken().getJwtToken());\n this.storage.setItem(refreshTokenKey, this.signInUserSession.getRefreshToken().getToken());\n this.storage.setItem(clockDriftKey, \"\" + this.signInUserSession.getClockDrift());\n this.storage.setItem(lastUserKey, this.username);\n }\n\n /**\n * This is to cache user data\n */;\n _proto.cacheUserData = function cacheUserData(userData) {\n this.storage.setItem(this.userDataKey, JSON.stringify(userData));\n }\n\n /**\n * This is to remove cached user data\n */;\n _proto.clearCachedUserData = function clearCachedUserData() {\n this.storage.removeItem(this.userDataKey);\n };\n _proto.clearCachedUser = function clearCachedUser() {\n this.clearCachedTokens();\n this.clearCachedUserData();\n }\n\n /**\n * This is used to cache the device key and device group and device password\n * @returns {void}\n */;\n _proto.cacheDeviceKeyAndPassword = function cacheDeviceKeyAndPassword() {\n var keyPrefix = \"CognitoIdentityServiceProvider.\" + this.pool.getClientId() + \".\" + this.username;\n var deviceKeyKey = keyPrefix + \".deviceKey\";\n var randomPasswordKey = keyPrefix + \".randomPasswordKey\";\n var deviceGroupKeyKey = keyPrefix + \".deviceGroupKey\";\n this.storage.setItem(deviceKeyKey, this.deviceKey);\n this.storage.setItem(randomPasswordKey, this.randomPassword);\n this.storage.setItem(deviceGroupKeyKey, this.deviceGroupKey);\n }\n\n /**\n * This is used to get current device key and device group and device password\n * @returns {void}\n */;\n _proto.getCachedDeviceKeyAndPassword = function getCachedDeviceKeyAndPassword() {\n var keyPrefix = \"CognitoIdentityServiceProvider.\" + this.pool.getClientId() + \".\" + this.username;\n var deviceKeyKey = keyPrefix + \".deviceKey\";\n var randomPasswordKey = keyPrefix + \".randomPasswordKey\";\n var deviceGroupKeyKey = keyPrefix + \".deviceGroupKey\";\n if (this.storage.getItem(deviceKeyKey)) {\n this.deviceKey = this.storage.getItem(deviceKeyKey);\n this.randomPassword = this.storage.getItem(randomPasswordKey);\n this.deviceGroupKey = this.storage.getItem(deviceGroupKeyKey);\n }\n }\n\n /**\n * This is used to clear the device key info from local storage\n * @returns {void}\n */;\n _proto.clearCachedDeviceKeyAndPassword = function clearCachedDeviceKeyAndPassword() {\n var keyPrefix = \"CognitoIdentityServiceProvider.\" + this.pool.getClientId() + \".\" + this.username;\n var deviceKeyKey = keyPrefix + \".deviceKey\";\n var randomPasswordKey = keyPrefix + \".randomPasswordKey\";\n var deviceGroupKeyKey = keyPrefix + \".deviceGroupKey\";\n this.storage.removeItem(deviceKeyKey);\n this.storage.removeItem(randomPasswordKey);\n this.storage.removeItem(deviceGroupKeyKey);\n }\n\n /**\n * This is used to clear the session tokens from local storage\n * @returns {void}\n */;\n _proto.clearCachedTokens = function clearCachedTokens() {\n var keyPrefix = \"CognitoIdentityServiceProvider.\" + this.pool.getClientId();\n var idTokenKey = keyPrefix + \".\" + this.username + \".idToken\";\n var accessTokenKey = keyPrefix + \".\" + this.username + \".accessToken\";\n var refreshTokenKey = keyPrefix + \".\" + this.username + \".refreshToken\";\n var lastUserKey = keyPrefix + \".LastAuthUser\";\n var clockDriftKey = keyPrefix + \".\" + this.username + \".clockDrift\";\n this.storage.removeItem(idTokenKey);\n this.storage.removeItem(accessTokenKey);\n this.storage.removeItem(refreshTokenKey);\n this.storage.removeItem(lastUserKey);\n this.storage.removeItem(clockDriftKey);\n }\n\n /**\n * This is used to build a user session from tokens retrieved in the authentication result\n * @param {object} authResult Successful auth response from server.\n * @returns {CognitoUserSession} The new user session.\n * @private\n */;\n _proto.getCognitoUserSession = function getCognitoUserSession(authResult) {\n var idToken = new CognitoIdToken(authResult);\n var accessToken = new CognitoAccessToken(authResult);\n var refreshToken = new CognitoRefreshToken(authResult);\n var sessionData = {\n IdToken: idToken,\n AccessToken: accessToken,\n RefreshToken: refreshToken\n };\n return new CognitoUserSession(sessionData);\n }\n\n /**\n * This is used to initiate a forgot password request\n * @param {object} callback Result callback map.\n * @param {onFailure} callback.onFailure Called on any error.\n * @param {inputVerificationCode?} callback.inputVerificationCode\n * Optional callback raised instead of onSuccess with response data.\n * @param {onSuccess} callback.onSuccess Called on success.\n * @param {ClientMetadata} clientMetadata object which is passed from client to Cognito Lambda trigger\n * @returns {void}\n */;\n _proto.forgotPassword = function forgotPassword(callback, clientMetadata) {\n var jsonReq = {\n ClientId: this.pool.getClientId(),\n Username: this.username,\n ClientMetadata: clientMetadata\n };\n if (this.getUserContextData()) {\n jsonReq.UserContextData = this.getUserContextData();\n }\n this.client.request('ForgotPassword', jsonReq, function (err, data) {\n if (err) {\n return callback.onFailure(err);\n }\n if (typeof callback.inputVerificationCode === 'function') {\n return callback.inputVerificationCode(data);\n }\n return callback.onSuccess(data);\n });\n }\n\n /**\n * This is used to confirm a new password using a confirmationCode\n * @param {string} confirmationCode Code entered by user.\n * @param {string} newPassword Confirm new password.\n * @param {object} callback Result callback map.\n * @param {onFailure} callback.onFailure Called on any error.\n * @param {onSuccess} callback.onSuccess Called on success.\n * @param {ClientMetadata} clientMetadata object which is passed from client to Cognito Lambda trigger\n * @returns {void}\n */;\n _proto.confirmPassword = function confirmPassword(confirmationCode, newPassword, callback, clientMetadata) {\n var jsonReq = {\n ClientId: this.pool.getClientId(),\n Username: this.username,\n ConfirmationCode: confirmationCode,\n Password: newPassword,\n ClientMetadata: clientMetadata\n };\n if (this.getUserContextData()) {\n jsonReq.UserContextData = this.getUserContextData();\n }\n this.client.request('ConfirmForgotPassword', jsonReq, function (err) {\n if (err) {\n return callback.onFailure(err);\n }\n return callback.onSuccess('SUCCESS');\n });\n }\n\n /**\n * This is used to initiate an attribute confirmation request\n * @param {string} attributeName User attribute that needs confirmation.\n * @param {object} callback Result callback map.\n * @param {onFailure} callback.onFailure Called on any error.\n * @param {inputVerificationCode} callback.inputVerificationCode Called on success.\n * @param {ClientMetadata} clientMetadata object which is passed from client to Cognito Lambda trigger\n * @returns {void}\n */;\n _proto.getAttributeVerificationCode = function getAttributeVerificationCode(attributeName, callback, clientMetadata) {\n if (this.signInUserSession == null || !this.signInUserSession.isValid()) {\n return callback.onFailure(new Error('User is not authenticated'));\n }\n this.client.request('GetUserAttributeVerificationCode', {\n AttributeName: attributeName,\n AccessToken: this.signInUserSession.getAccessToken().getJwtToken(),\n ClientMetadata: clientMetadata\n }, function (err, data) {\n if (err) {\n return callback.onFailure(err);\n }\n if (typeof callback.inputVerificationCode === 'function') {\n return callback.inputVerificationCode(data);\n }\n return callback.onSuccess('SUCCESS');\n });\n return undefined;\n }\n\n /**\n * This is used to confirm an attribute using a confirmation code\n * @param {string} attributeName Attribute being confirmed.\n * @param {string} confirmationCode Code entered by user.\n * @param {object} callback Result callback map.\n * @param {onFailure} callback.onFailure Called on any error.\n * @param {onSuccess} callback.onSuccess Called on success.\n * @returns {void}\n */;\n _proto.verifyAttribute = function verifyAttribute(attributeName, confirmationCode, callback) {\n if (this.signInUserSession == null || !this.signInUserSession.isValid()) {\n return callback.onFailure(new Error('User is not authenticated'));\n }\n this.client.request('VerifyUserAttribute', {\n AttributeName: attributeName,\n Code: confirmationCode,\n AccessToken: this.signInUserSession.getAccessToken().getJwtToken()\n }, function (err) {\n if (err) {\n return callback.onFailure(err);\n }\n return callback.onSuccess('SUCCESS');\n });\n return undefined;\n }\n\n /**\n * This is used to get the device information using the current device key\n * @param {object} callback Result callback map.\n * @param {onFailure} callback.onFailure Called on any error.\n * @param {onSuccess<*>} callback.onSuccess Called on success with device data.\n * @returns {void}\n */;\n _proto.getDevice = function getDevice(callback) {\n if (this.signInUserSession == null || !this.signInUserSession.isValid()) {\n return callback.onFailure(new Error('User is not authenticated'));\n }\n this.client.request('GetDevice', {\n AccessToken: this.signInUserSession.getAccessToken().getJwtToken(),\n DeviceKey: this.deviceKey\n }, function (err, data) {\n if (err) {\n return callback.onFailure(err);\n }\n return callback.onSuccess(data);\n });\n return undefined;\n }\n\n /**\n * This is used to forget a specific device\n * @param {string} deviceKey Device key.\n * @param {object} callback Result callback map.\n * @param {onFailure} callback.onFailure Called on any error.\n * @param {onSuccess} callback.onSuccess Called on success.\n * @returns {void}\n */;\n _proto.forgetSpecificDevice = function forgetSpecificDevice(deviceKey, callback) {\n if (this.signInUserSession == null || !this.signInUserSession.isValid()) {\n return callback.onFailure(new Error('User is not authenticated'));\n }\n this.client.request('ForgetDevice', {\n AccessToken: this.signInUserSession.getAccessToken().getJwtToken(),\n DeviceKey: deviceKey\n }, function (err) {\n if (err) {\n return callback.onFailure(err);\n }\n return callback.onSuccess('SUCCESS');\n });\n return undefined;\n }\n\n /**\n * This is used to forget the current device\n * @param {object} callback Result callback map.\n * @param {onFailure} callback.onFailure Called on any error.\n * @param {onSuccess} callback.onSuccess Called on success.\n * @returns {void}\n */;\n _proto.forgetDevice = function forgetDevice(callback) {\n var _this16 = this;\n this.forgetSpecificDevice(this.deviceKey, {\n onFailure: callback.onFailure,\n onSuccess: function onSuccess(result) {\n _this16.deviceKey = null;\n _this16.deviceGroupKey = null;\n _this16.randomPassword = null;\n _this16.clearCachedDeviceKeyAndPassword();\n return callback.onSuccess(result);\n }\n });\n }\n\n /**\n * This is used to set the device status as remembered\n * @param {object} callback Result callback map.\n * @param {onFailure} callback.onFailure Called on any error.\n * @param {onSuccess} callback.onSuccess Called on success.\n * @returns {void}\n */;\n _proto.setDeviceStatusRemembered = function setDeviceStatusRemembered(callback) {\n if (this.signInUserSession == null || !this.signInUserSession.isValid()) {\n return callback.onFailure(new Error('User is not authenticated'));\n }\n this.client.request('UpdateDeviceStatus', {\n AccessToken: this.signInUserSession.getAccessToken().getJwtToken(),\n DeviceKey: this.deviceKey,\n DeviceRememberedStatus: 'remembered'\n }, function (err) {\n if (err) {\n return callback.onFailure(err);\n }\n return callback.onSuccess('SUCCESS');\n });\n return undefined;\n }\n\n /**\n * This is used to set the device status as not remembered\n * @param {object} callback Result callback map.\n * @param {onFailure} callback.onFailure Called on any error.\n * @param {onSuccess} callback.onSuccess Called on success.\n * @returns {void}\n */;\n _proto.setDeviceStatusNotRemembered = function setDeviceStatusNotRemembered(callback) {\n if (this.signInUserSession == null || !this.signInUserSession.isValid()) {\n return callback.onFailure(new Error('User is not authenticated'));\n }\n this.client.request('UpdateDeviceStatus', {\n AccessToken: this.signInUserSession.getAccessToken().getJwtToken(),\n DeviceKey: this.deviceKey,\n DeviceRememberedStatus: 'not_remembered'\n }, function (err) {\n if (err) {\n return callback.onFailure(err);\n }\n return callback.onSuccess('SUCCESS');\n });\n return undefined;\n }\n\n /**\n * This is used to list all devices for a user\n *\n * @param {int} limit the number of devices returned in a call\n * @param {string | null} paginationToken the pagination token in case any was returned before\n * @param {object} callback Result callback map.\n * @param {onFailure} callback.onFailure Called on any error.\n * @param {onSuccess<*>} callback.onSuccess Called on success with device list.\n * @returns {void}\n */;\n _proto.listDevices = function listDevices(limit, paginationToken, callback) {\n if (this.signInUserSession == null || !this.signInUserSession.isValid()) {\n return callback.onFailure(new Error('User is not authenticated'));\n }\n var requestParams = {\n AccessToken: this.signInUserSession.getAccessToken().getJwtToken(),\n Limit: limit\n };\n if (paginationToken) {\n requestParams.PaginationToken = paginationToken;\n }\n this.client.request('ListDevices', requestParams, function (err, data) {\n if (err) {\n return callback.onFailure(err);\n }\n return callback.onSuccess(data);\n });\n return undefined;\n }\n\n /**\n * This is used to globally revoke all tokens issued to a user\n * @param {object} callback Result callback map.\n * @param {onFailure} callback.onFailure Called on any error.\n * @param {onSuccess} callback.onSuccess Called on success.\n * @returns {void}\n */;\n _proto.globalSignOut = function globalSignOut(callback) {\n var _this17 = this;\n if (this.signInUserSession == null || !this.signInUserSession.isValid()) {\n return callback.onFailure(new Error('User is not authenticated'));\n }\n this.client.request('GlobalSignOut', {\n AccessToken: this.signInUserSession.getAccessToken().getJwtToken()\n }, function (err) {\n if (err) {\n return callback.onFailure(err);\n }\n _this17.clearCachedUser();\n return callback.onSuccess('SUCCESS');\n });\n return undefined;\n }\n\n /**\n * This is used for the user to signOut of the application and clear the cached tokens.\n * @returns {void}\n */;\n _proto.signOut = function signOut(revokeTokenCallback) {\n var _this18 = this;\n // If tokens won't be revoked, we just clean the client data.\n if (!revokeTokenCallback || typeof revokeTokenCallback !== 'function') {\n this.cleanClientData();\n return;\n }\n this.getSession(function (error, _session) {\n if (error) {\n return revokeTokenCallback(error);\n }\n _this18.revokeTokens(function (err) {\n _this18.cleanClientData();\n revokeTokenCallback(err);\n });\n });\n };\n _proto.revokeTokens = function revokeTokens(revokeTokenCallback) {\n if (revokeTokenCallback === void 0) {\n revokeTokenCallback = function revokeTokenCallback() {};\n }\n if (typeof revokeTokenCallback !== 'function') {\n throw new Error('Invalid revokeTokenCallback. It should be a function.');\n }\n var tokensToBeRevoked = [];\n if (!this.signInUserSession) {\n var error = new Error('User is not authenticated');\n return revokeTokenCallback(error);\n }\n if (!this.signInUserSession.getAccessToken()) {\n var _error = new Error('No Access token available');\n return revokeTokenCallback(_error);\n }\n var refreshToken = this.signInUserSession.getRefreshToken().getToken();\n var accessToken = this.signInUserSession.getAccessToken();\n if (this.isSessionRevocable(accessToken)) {\n if (refreshToken) {\n return this.revokeToken({\n token: refreshToken,\n callback: revokeTokenCallback\n });\n }\n }\n revokeTokenCallback();\n };\n _proto.isSessionRevocable = function isSessionRevocable(token) {\n if (token && typeof token.decodePayload === 'function') {\n try {\n var _token$decodePayload = token.decodePayload(),\n origin_jti = _token$decodePayload.origin_jti;\n return !!origin_jti;\n } catch (err) {\n // Nothing to do, token doesnt have origin_jti claim\n }\n }\n return false;\n };\n _proto.cleanClientData = function cleanClientData() {\n this.signInUserSession = null;\n this.clearCachedUser();\n };\n _proto.revokeToken = function revokeToken(_ref2) {\n var token = _ref2.token,\n callback = _ref2.callback;\n this.client.requestWithRetry('RevokeToken', {\n Token: token,\n ClientId: this.pool.getClientId()\n }, function (err) {\n if (err) {\n return callback(err);\n }\n callback();\n });\n }\n\n /**\n * This is used by a user trying to select a given MFA\n * @param {string} answerChallenge the mfa the user wants\n * @param {nodeCallback} callback Called on success or error.\n * @returns {void}\n */;\n _proto.sendMFASelectionAnswer = function sendMFASelectionAnswer(answerChallenge, callback) {\n var _this19 = this;\n var challengeResponses = {};\n challengeResponses.USERNAME = this.username;\n challengeResponses.ANSWER = answerChallenge;\n var jsonReq = {\n ChallengeName: 'SELECT_MFA_TYPE',\n ChallengeResponses: challengeResponses,\n ClientId: this.pool.getClientId(),\n Session: this.Session\n };\n if (this.getUserContextData()) {\n jsonReq.UserContextData = this.getUserContextData();\n }\n this.client.request('RespondToAuthChallenge', jsonReq, function (err, data) {\n if (err) {\n return callback.onFailure(err);\n }\n _this19.Session = data.Session;\n if (answerChallenge === 'SMS_MFA') {\n return callback.mfaRequired(data.ChallengeName, data.ChallengeParameters);\n }\n if (answerChallenge === 'SOFTWARE_TOKEN_MFA') {\n return callback.totpRequired(data.ChallengeName, data.ChallengeParameters);\n }\n return undefined;\n });\n }\n\n /**\n * This returns the user context data for advanced security feature.\n * @returns {string} the user context data from CognitoUserPool\n */;\n _proto.getUserContextData = function getUserContextData() {\n var pool = this.pool;\n return pool.getUserContextData(this.username);\n }\n\n /**\n * This is used by an authenticated or a user trying to authenticate to associate a TOTP MFA\n * @param {nodeCallback} callback Called on success or error.\n * @returns {void}\n */;\n _proto.associateSoftwareToken = function associateSoftwareToken(callback) {\n var _this20 = this;\n if (!(this.signInUserSession != null && this.signInUserSession.isValid())) {\n this.client.request('AssociateSoftwareToken', {\n Session: this.Session\n }, function (err, data) {\n if (err) {\n return callback.onFailure(err);\n }\n _this20.Session = data.Session;\n return callback.associateSecretCode(data.SecretCode);\n });\n } else {\n this.client.request('AssociateSoftwareToken', {\n AccessToken: this.signInUserSession.getAccessToken().getJwtToken()\n }, function (err, data) {\n if (err) {\n return callback.onFailure(err);\n }\n return callback.associateSecretCode(data.SecretCode);\n });\n }\n }\n\n /**\n * This is used by an authenticated or a user trying to authenticate to verify a TOTP MFA\n * @param {string} totpCode The MFA code entered by the user.\n * @param {string} friendlyDeviceName The device name we are assigning to the device.\n * @param {nodeCallback} callback Called on success or error.\n * @returns {void}\n */;\n _proto.verifySoftwareToken = function verifySoftwareToken(totpCode, friendlyDeviceName, callback) {\n var _this21 = this;\n if (!(this.signInUserSession != null && this.signInUserSession.isValid())) {\n this.client.request('VerifySoftwareToken', {\n Session: this.Session,\n UserCode: totpCode,\n FriendlyDeviceName: friendlyDeviceName\n }, function (err, data) {\n if (err) {\n return callback.onFailure(err);\n }\n _this21.Session = data.Session;\n var challengeResponses = {};\n challengeResponses.USERNAME = _this21.username;\n var jsonReq = {\n ChallengeName: 'MFA_SETUP',\n ClientId: _this21.pool.getClientId(),\n ChallengeResponses: challengeResponses,\n Session: _this21.Session\n };\n if (_this21.getUserContextData()) {\n jsonReq.UserContextData = _this21.getUserContextData();\n }\n _this21.client.request('RespondToAuthChallenge', jsonReq, function (errRespond, dataRespond) {\n if (errRespond) {\n return callback.onFailure(errRespond);\n }\n _this21.signInUserSession = _this21.getCognitoUserSession(dataRespond.AuthenticationResult);\n _this21.cacheTokens();\n return callback.onSuccess(_this21.signInUserSession);\n });\n return undefined;\n });\n } else {\n this.client.request('VerifySoftwareToken', {\n AccessToken: this.signInUserSession.getAccessToken().getJwtToken(),\n UserCode: totpCode,\n FriendlyDeviceName: friendlyDeviceName\n }, function (err, data) {\n if (err) {\n return callback.onFailure(err);\n }\n return callback.onSuccess(data);\n });\n }\n };\n return CognitoUser;\n}();\nexport { CognitoUser as default };","import { getUserAgent } from './Platform';\nimport { AUTH_CATEGORY } from './Platform/constants';\n\n// constructor\nfunction UserAgent() {}\n// public\nUserAgent.prototype.userAgent = getUserAgent();\nexport var appendToCognitoUserAgent = function appendToCognitoUserAgent(content) {\n if (!content) {\n return;\n }\n if (UserAgent.prototype.userAgent && !UserAgent.prototype.userAgent.includes(content)) {\n UserAgent.prototype.userAgent = UserAgent.prototype.userAgent.concat(' ', content);\n }\n if (!UserAgent.prototype.userAgent || UserAgent.prototype.userAgent === '') {\n UserAgent.prototype.userAgent = content;\n }\n};\nexport var addAuthCategoryToCognitoUserAgent = function addAuthCategoryToCognitoUserAgent() {\n UserAgent.category = AUTH_CATEGORY;\n};\nexport var addFrameworkToCognitoUserAgent = function addFrameworkToCognitoUserAgent(framework) {\n UserAgent.framework = framework;\n};\nexport var getAmplifyUserAgent = function getAmplifyUserAgent(action) {\n var uaCategoryAction = UserAgent.category ? \" \" + UserAgent.category : '';\n var uaFramework = UserAgent.framework ? \" framework/\" + UserAgent.framework : '';\n var userAgent = \"\" + UserAgent.prototype.userAgent + uaCategoryAction + uaFramework;\n return userAgent;\n};\n\n// class for defining the amzn user-agent\nexport default UserAgent;","function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; _setPrototypeOf(subClass, superClass); }\nfunction _wrapNativeSuper(Class) { var _cache = typeof Map === \"function\" ? new Map() : undefined; _wrapNativeSuper = function _wrapNativeSuper(Class) { if (Class === null || !_isNativeFunction(Class)) return Class; if (typeof Class !== \"function\") { throw new TypeError(\"Super expression must either be null or a function\"); } if (typeof _cache !== \"undefined\") { if (_cache.has(Class)) return _cache.get(Class); _cache.set(Class, Wrapper); } function Wrapper() { return _construct(Class, arguments, _getPrototypeOf(this).constructor); } Wrapper.prototype = Object.create(Class.prototype, { constructor: { value: Wrapper, enumerable: false, writable: true, configurable: true } }); return _setPrototypeOf(Wrapper, Class); }; return _wrapNativeSuper(Class); }\nfunction _construct(Parent, args, Class) { if (_isNativeReflectConstruct()) { _construct = Reflect.construct.bind(); } else { _construct = function _construct(Parent, args, Class) { var a = [null]; a.push.apply(a, args); var Constructor = Function.bind.apply(Parent, a); var instance = new Constructor(); if (Class) _setPrototypeOf(instance, Class.prototype); return instance; }; } return _construct.apply(null, arguments); }\nfunction _isNativeReflectConstruct() { if (typeof Reflect === \"undefined\" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === \"function\") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }\nfunction _isNativeFunction(fn) { try { return Function.toString.call(fn).indexOf(\"[native code]\") !== -1; } catch (e) { return typeof fn === \"function\"; } }\nfunction _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf ? Object.setPrototypeOf.bind() : function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }\nfunction _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf.bind() : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }\nimport 'isomorphic-unfetch';\nimport { getAmplifyUserAgent } from './UserAgent';\nvar CognitoError = /*#__PURE__*/function (_Error) {\n _inheritsLoose(CognitoError, _Error);\n function CognitoError(message, code, name, statusCode) {\n var _this;\n _this = _Error.call(this, message) || this;\n _this.code = code;\n _this.name = name;\n _this.statusCode = statusCode;\n return _this;\n }\n return CognitoError;\n}( /*#__PURE__*/_wrapNativeSuper(Error));\n/** @class */\nvar Client = /*#__PURE__*/function () {\n /**\n * Constructs a new AWS Cognito Identity Provider client object\n * @param {string} region AWS region\n * @param {string} endpoint endpoint\n * @param {object} fetchOptions options for fetch API (only credentials is supported)\n */\n function Client(region, endpoint, fetchOptions) {\n this.endpoint = endpoint || \"https://cognito-idp.\" + region + \".amazonaws.com/\";\n var _ref = fetchOptions || {},\n credentials = _ref.credentials;\n this.fetchOptions = credentials ? {\n credentials: credentials\n } : {};\n }\n\n /**\n * Makes an unauthenticated request on AWS Cognito Identity Provider API\n * using fetch\n * @param {string} operation API operation\n * @param {object} params Input parameters\n * @returns Promise