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{"version":3,"sources":["../src/index.ts","../src/lib/AsyncQueue.ts"],"sourcesContent":["export * from './lib/AsyncQueue';\n","/**\n * The AsyncQueue class used to sequentialize burst requests\n */\nexport class AsyncQueue {\n\t/**\n\t * The remaining amount of queued promises\n\t */\n\tpublic get remaining(): number {\n\t\treturn this.promises.length;\n\t}\n\n\t/**\n\t * The promises array\n\t */\n\tprivate promises: InternalAsyncQueueDeferredPromise[] = [];\n\n\t/**\n\t * Waits for last promise and queues a new one\n\t * @example\n\t * ```typescript\n\t * const queue = new AsyncQueue();\n\t * async function request(url, options) {\n\t * await queue.wait();\n\t * try {\n\t * const result = await fetch(url, options);\n\t * // Do some operations with 'result'\n\t * } finally {\n\t * // Remove first entry from the queue and resolve for the next entry\n\t * queue.shift();\n\t * }\n\t * }\n\t *\n\t * request(someUrl1, someOptions1); // Will call fetch() immediately\n\t * request(someUrl2, someOptions2); // Will call fetch() after the first finished\n\t * request(someUrl3, someOptions3); // Will call fetch() after the second finished\n\t * ```\n\t */\n\tpublic wait(): Promise<void> {\n\t\tconst next = this.promises.length ? this.promises[this.promises.length - 1].promise : Promise.resolve();\n\t\tlet resolve: () => void;\n\t\tconst promise = new Promise<void>((res) => {\n\t\t\tresolve = res;\n\t\t});\n\n\t\tthis.promises.push({\n\t\t\tresolve: resolve!,\n\t\t\tpromise\n\t\t});\n\n\t\treturn next;\n\t}\n\n\t/**\n\t * Frees the queue's lock for the next item to process\n\t */\n\tpublic shift(): void {\n\t\tconst deferred = this.promises.shift();\n\t\tif (typeof deferred !== 'undefined') deferred.resolve();\n\t}\n}\n\n/**\n * @internal\n */\ninterface InternalAsyncQueueDeferredPromise {\n\tresolve(): void;\n\tpromise: Promise<void>;\n}\n"],"mappings":";;;;;;;;;;;;;;;;;;;;;;;;;;AAAA;AAAA;AAAA;AAAA;;;ACGO,yBAAiB;AAAA,IAAjB;AAWE,sCAAgD,CAAC;AAAA;AAAA,QAP9C,YAAoB;AAC9B,aAAO,KAAK,SAAS;AAAA,IACtB;AAAA,IA4BO,OAAsB;AAC5B,YAAM,OAAO,KAAK,SAAS,SAAS,KAAK,SAAS,KAAK,SAAS,SAAS,GAAG,UAAU,QAAQ,QAAQ;AACtG,UAAI;AACJ,YAAM,UAAU,IAAI,QAAc,CAAC,QAAQ;AAC1C,kBAAU;AAAA,MACX,CAAC;AAED,WAAK,SAAS,KAAK;AAAA,QAClB;AAAA,QACA;AAAA,MACD,CAAC;AAED,aAAO;AAAA,IACR;AAAA,IAKO,QAAc;AACpB,YAAM,WAAW,KAAK,SAAS,MAAM;AACrC,UAAI,OAAO,aAAa;AAAa,iBAAS,QAAQ;AAAA,IACvD;AAAA,EACD;AAxDO","names":[]}
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