1 | "use strict";
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2 | var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
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3 | function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
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4 | return new (P || (P = Promise))(function (resolve, reject) {
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5 | function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
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6 | function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
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7 | function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
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8 | step((generator = generator.apply(thisArg, _arguments || [])).next());
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9 | });
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10 | };
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11 | var __generator = (this && this.__generator) || function (thisArg, body) {
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12 | var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
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13 | return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
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14 | function verb(n) { return function (v) { return step([n, v]); }; }
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15 | function step(op) {
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16 | if (f) throw new TypeError("Generator is already executing.");
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17 | while (_) try {
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18 | 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;
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19 | if (y = 0, t) op = [op[0] & 2, t.value];
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20 | switch (op[0]) {
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21 | case 0: case 1: t = op; break;
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22 | case 4: _.label++; return { value: op[1], done: false };
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23 | case 5: _.label++; y = op[1]; op = [0]; continue;
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24 | case 7: op = _.ops.pop(); _.trys.pop(); continue;
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25 | default:
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26 | if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
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27 | if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
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28 | if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
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29 | if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
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30 | if (t[2]) _.ops.pop();
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31 | _.trys.pop(); continue;
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32 | }
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33 | op = body.call(thisArg, _);
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34 | } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
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35 | if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
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36 | }
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37 | };
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38 | var __read = (this && this.__read) || function (o, n) {
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39 | var m = typeof Symbol === "function" && o[Symbol.iterator];
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40 | if (!m) return o;
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41 | var i = m.call(o), r, ar = [], e;
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42 | try {
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43 | while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);
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44 | }
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45 | catch (error) { e = { error: error }; }
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46 | finally {
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47 | try {
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48 | if (r && !r.done && (m = i["return"])) m.call(i);
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49 | }
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50 | finally { if (e) throw e.error; }
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51 | }
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52 | return ar;
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53 | };
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54 | var __spread = (this && this.__spread) || function () {
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55 | for (var ar = [], i = 0; i < arguments.length; i++) ar = ar.concat(__read(arguments[i]));
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56 | return ar;
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57 | };
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58 | Object.defineProperty(exports, "__esModule", { value: true });
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59 | var core_1 = require("@aws-amplify/core");
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60 | var client_pinpoint_1 = require("@aws-sdk/client-pinpoint");
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61 | var AppUtils_1 = require("../utils/AppUtils");
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62 | var logger = new core_1.ConsoleLogger('EventsBuffer');
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63 | var RETRYABLE_CODES = [429, 500];
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64 | var ACCEPTED_CODES = [202];
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65 | var EventsBuffer = (function () {
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66 | function EventsBuffer(client, config) {
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67 | this._pause = false;
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68 | this._flush = false;
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69 | logger.debug('Instantiating buffer with config:', config);
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70 | this._buffer = [];
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71 | this._client = client;
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72 | this._config = config;
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73 | this._sendBatch = this._sendBatch.bind(this);
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74 | this._startLoop();
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75 | }
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76 | EventsBuffer.prototype.push = function (event) {
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77 | var _a;
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78 | if (this._buffer > this._config.bufferSize) {
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79 | logger.debug('Exceeded analytics events buffer size');
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80 | return event.handlers.reject(new Error('Exceeded the size of analytics events buffer'));
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81 | }
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82 | var eventId = event.params.event.eventId;
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83 | var bufferElement = (_a = {}, _a[eventId] = event, _a);
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84 | this._buffer.push(bufferElement);
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85 | };
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86 | EventsBuffer.prototype.pause = function () {
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87 | this._pause = true;
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88 | };
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89 | EventsBuffer.prototype.resume = function () {
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90 | this._pause = false;
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91 | };
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92 | EventsBuffer.prototype.updateClient = function (client) {
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93 | this._client = client;
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94 | };
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95 | EventsBuffer.prototype.flush = function () {
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96 | this._flush = true;
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97 | };
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98 | EventsBuffer.prototype._startLoop = function () {
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99 | if (this._interval) {
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100 | clearInterval(this._interval);
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101 | }
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102 | var flushInterval = this._config.flushInterval;
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103 | this._interval = setInterval(this._sendBatch, flushInterval);
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104 | };
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105 | EventsBuffer.prototype._sendBatch = function () {
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106 | var bufferLength = this._buffer.length;
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107 | if (this._flush && !bufferLength) {
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108 | clearInterval(this._interval);
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109 | }
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110 |
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111 |
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112 |
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113 |
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114 | if (this._pause || !bufferLength || !AppUtils_1.isAppInForeground()) {
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115 | return;
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116 | }
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117 | var flushSize = this._config.flushSize;
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118 | var batchSize = Math.min(flushSize, bufferLength);
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119 | var bufferSubset = this._buffer.splice(0, batchSize);
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120 | this._putEvents(bufferSubset);
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121 | };
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122 | EventsBuffer.prototype._putEvents = function (buffer) {
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123 | return __awaiter(this, void 0, void 0, function () {
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124 | var eventMap, batchEventParams, command, data, err_1;
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125 | return __generator(this, function (_a) {
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126 | switch (_a.label) {
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127 | case 0:
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128 | eventMap = this._bufferToMap(buffer);
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129 | batchEventParams = this._generateBatchEventParams(eventMap);
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130 | _a.label = 1;
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131 | case 1:
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132 | _a.trys.push([1, 3, , 4]);
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133 | command = new client_pinpoint_1.PutEventsCommand(batchEventParams);
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134 | return [4 , this._client.send(command)];
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135 | case 2:
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136 | data = _a.sent();
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137 | this._processPutEventsSuccessResponse(data, eventMap);
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138 | return [3 , 4];
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139 | case 3:
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140 | err_1 = _a.sent();
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141 | return [2 , this._handlePutEventsFailure(err_1, eventMap)];
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142 | case 4: return [2 ];
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143 | }
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144 | });
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145 | });
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146 | };
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147 | EventsBuffer.prototype._generateBatchEventParams = function (eventMap) {
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148 | var batchEventParams = {
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149 | ApplicationId: '',
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150 | EventsRequest: {
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151 | BatchItem: {},
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152 | },
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153 | };
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154 | Object.values(eventMap).forEach(function (item) {
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155 | var params = item.params;
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156 | var event = params.event, timestamp = params.timestamp, config = params.config;
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157 | var name = event.name, attributes = event.attributes, metrics = event.metrics, eventId = event.eventId, session = event.session;
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158 | var appId = config.appId, endpointId = config.endpointId;
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159 | var batchItem = batchEventParams.EventsRequest.BatchItem;
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160 | batchEventParams.ApplicationId = batchEventParams.ApplicationId || appId;
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161 | if (!batchItem[endpointId]) {
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162 | batchItem[endpointId] = {
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163 | Endpoint: {},
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164 | Events: {},
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165 | };
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166 | }
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167 | batchItem[endpointId].Events[eventId] = {
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168 | EventType: name,
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169 | Timestamp: new Date(timestamp).toISOString(),
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170 | Attributes: attributes,
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171 | Metrics: metrics,
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172 | Session: session,
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173 | };
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174 | });
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175 | return batchEventParams;
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176 | };
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177 | EventsBuffer.prototype._handlePutEventsFailure = function (err, eventMap) {
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178 | logger.debug('_putEvents Failed: ', err);
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179 | var statusCode = err.$metadata && err.$metadata.httpStatusCode;
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180 | if (RETRYABLE_CODES.includes(statusCode)) {
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181 | var retryableEvents = Object.values(eventMap);
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182 | this._retry(retryableEvents);
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183 | return;
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184 | }
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185 | };
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186 | EventsBuffer.prototype._processPutEventsSuccessResponse = function (data, eventMap) {
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187 | var Results = data.EventsResponse.Results;
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188 | var retryableEvents = [];
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189 | Object.entries(Results).forEach(function (_a) {
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190 | var _b = __read(_a, 2), endpointId = _b[0], endpointValues = _b[1];
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191 | var responses = endpointValues.EventsItemResponse;
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192 | Object.entries(responses).forEach(function (_a) {
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193 | var _b, _c;
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194 | var _d = __read(_a, 2), eventId = _d[0], _e = _d[1], StatusCode = _e.StatusCode, Message = _e.Message;
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195 | var eventObject = eventMap[eventId];
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196 |
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197 | var response = {
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198 | EventsResponse: {
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199 | Results: (_b = {},
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200 | _b[endpointId] = {
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201 | EventsItemResponse: (_c = {},
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202 | _c[eventId] = { StatusCode: StatusCode, Message: Message },
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203 | _c),
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204 | },
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205 | _b),
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206 | },
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207 | };
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208 | if (ACCEPTED_CODES.includes(StatusCode)) {
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209 | eventObject.handlers.resolve(response);
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210 | return;
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211 | }
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212 | if (RETRYABLE_CODES.includes(StatusCode)) {
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213 | retryableEvents.push(eventObject);
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214 | return;
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215 | }
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216 | var name = eventObject.params.event.name;
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217 | logger.error("event " + eventId + " : " + name + " failed with error: " + Message);
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218 | return eventObject.handlers.reject(response);
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219 | });
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220 | });
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221 | if (retryableEvents.length) {
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222 | this._retry(retryableEvents);
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223 | }
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224 | };
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225 | EventsBuffer.prototype._retry = function (retryableEvents) {
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226 | var _a;
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227 |
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228 | var eligibleEvents = [];
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229 | retryableEvents.forEach(function (event) {
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230 | var _a;
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231 | var params = event.params;
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232 | var _b = params.event, eventId = _b.eventId, name = _b.name;
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233 | if (params.resendLimit-- > 0) {
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234 | logger.debug("resending event " + eventId + " : " + name + " with " + params.resendLimit + " retry attempts remaining");
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235 | eligibleEvents.push((_a = {}, _a[eventId] = event, _a));
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236 | return;
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237 | }
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238 | logger.debug("no retry attempts remaining for event " + eventId + " : " + name);
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239 | });
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240 |
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241 | (_a = this._buffer).unshift.apply(_a, __spread(eligibleEvents));
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242 | };
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243 |
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244 |
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245 | EventsBuffer.prototype._bufferToMap = function (buffer) {
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246 | return buffer.reduce(function (acc, curVal) {
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247 | var _a = __read(Object.entries(curVal), 1), _b = __read(_a[0], 2), key = _b[0], value = _b[1];
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248 | acc[key] = value;
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249 | return acc;
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250 | }, {});
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251 | };
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252 | return EventsBuffer;
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253 | }());
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254 | exports.default = EventsBuffer;
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255 |
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