diff options
Diffstat (limited to 'node_modules/exponential-backoff/dist/backoff.js')
| -rw-r--r-- | node_modules/exponential-backoff/dist/backoff.js | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/node_modules/exponential-backoff/dist/backoff.js b/node_modules/exponential-backoff/dist/backoff.js new file mode 100644 index 0000000..6a1b6bd --- /dev/null +++ b/node_modules/exponential-backoff/dist/backoff.js @@ -0,0 +1,124 @@ +"use strict"; +var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) { + function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); } + return new (P || (P = Promise))(function (resolve, reject) { + function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } } + function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } } + function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); } + step((generator = generator.apply(thisArg, _arguments || [])).next()); + }); +}; +var __generator = (this && this.__generator) || function (thisArg, body) { + var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g; + return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g; + function verb(n) { return function (v) { return step([n, v]); }; } + function step(op) { + if (f) throw new TypeError("Generator is already executing."); + while (_) try { + 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; + if (y = 0, t) op = [op[0] & 2, t.value]; + switch (op[0]) { + case 0: case 1: t = op; break; + case 4: _.label++; return { value: op[1], done: false }; + case 5: _.label++; y = op[1]; op = [0]; continue; + case 7: op = _.ops.pop(); _.trys.pop(); continue; + default: + if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; } + if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; } + if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; } + if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; } + if (t[2]) _.ops.pop(); + _.trys.pop(); continue; + } + op = body.call(thisArg, _); + } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; } + if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true }; + } +}; +Object.defineProperty(exports, "__esModule", { value: true }); +var options_1 = require("./options"); +var delay_factory_1 = require("./delay/delay.factory"); +/** + * Executes a function with exponential backoff. + * @param request the function to be executed + * @param options options to customize the backoff behavior + * @returns Promise that resolves to the result of the `request` function + */ +function backOff(request, options) { + if (options === void 0) { options = {}; } + return __awaiter(this, void 0, void 0, function () { + var sanitizedOptions, backOff; + return __generator(this, function (_a) { + switch (_a.label) { + case 0: + sanitizedOptions = options_1.getSanitizedOptions(options); + backOff = new BackOff(request, sanitizedOptions); + return [4 /*yield*/, backOff.execute()]; + case 1: return [2 /*return*/, _a.sent()]; + } + }); + }); +} +exports.backOff = backOff; +var BackOff = /** @class */ (function () { + function BackOff(request, options) { + this.request = request; + this.options = options; + this.attemptNumber = 0; + } + BackOff.prototype.execute = function () { + return __awaiter(this, void 0, void 0, function () { + var e_1, shouldRetry; + return __generator(this, function (_a) { + switch (_a.label) { + case 0: + if (!!this.attemptLimitReached) return [3 /*break*/, 7]; + _a.label = 1; + case 1: + _a.trys.push([1, 4, , 6]); + return [4 /*yield*/, this.applyDelay()]; + case 2: + _a.sent(); + return [4 /*yield*/, this.request()]; + case 3: return [2 /*return*/, _a.sent()]; + case 4: + e_1 = _a.sent(); + this.attemptNumber++; + return [4 /*yield*/, this.options.retry(e_1, this.attemptNumber)]; + case 5: + shouldRetry = _a.sent(); + if (!shouldRetry || this.attemptLimitReached) { + throw e_1; + } + return [3 /*break*/, 6]; + case 6: return [3 /*break*/, 0]; + case 7: throw new Error("Something went wrong."); + } + }); + }); + }; + Object.defineProperty(BackOff.prototype, "attemptLimitReached", { + get: function () { + return this.attemptNumber >= this.options.numOfAttempts; + }, + enumerable: true, + configurable: true + }); + BackOff.prototype.applyDelay = function () { + return __awaiter(this, void 0, void 0, function () { + var delay; + return __generator(this, function (_a) { + switch (_a.label) { + case 0: + delay = delay_factory_1.DelayFactory(this.options, this.attemptNumber); + return [4 /*yield*/, delay.apply()]; + case 1: + _a.sent(); + return [2 /*return*/]; + } + }); + }); + }; + return BackOff; +}()); +//# sourceMappingURL=backoff.js.map
\ No newline at end of file |