*Add dist
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import PCancelable from "p-cancelable";
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export interface ClearablePromise<T> extends Promise<T> {
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/**
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Clear the timeout.
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*/
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clear: () => void;
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}
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export type Options<ReturnType> = {
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/**
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Milliseconds before timing out.
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Passing `Infinity` will cause it to never time out.
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*/
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milliseconds: number;
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/**
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Do something other than rejecting with an error on timeout.
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You could for example retry:
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@example
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```
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import {setTimeout} from 'node:timers/promises';
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import pTimeout from 'p-timeout';
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const delayedPromise = () => setTimeout(200);
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await pTimeout(delayedPromise(), {
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milliseconds: 50,
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fallback: () => {
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return pTimeout(delayedPromise(), {
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milliseconds: 300
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});
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},
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});
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```
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*/
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fallback?: () => ReturnType | Promise<ReturnType>;
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/**
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Specify a custom error message or error.
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If you do a custom error, it's recommended to sub-class `pTimeout.TimeoutError`.
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*/
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message?: string | Error;
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/**
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Custom implementations for the `setTimeout` and `clearTimeout` functions.
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Useful for testing purposes, in particular to work around [`sinon.useFakeTimers()`](https://sinonjs.org/releases/latest/fake-timers/).
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@example
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```
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import pTimeout from 'p-timeout';
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import sinon from 'sinon';
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const originalSetTimeout = setTimeout;
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const originalClearTimeout = clearTimeout;
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sinon.useFakeTimers();
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// Use `pTimeout` without being affected by `sinon.useFakeTimers()`:
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await pTimeout(doSomething(), {
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milliseconds: 2000,
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customTimers: {
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setTimeout: originalSetTimeout,
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clearTimeout: originalClearTimeout
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}
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});
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```
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*/
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readonly customTimers?: {
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setTimeout: typeof globalThis.setTimeout;
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clearTimeout: typeof globalThis.clearTimeout;
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};
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/**
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You can abort the promise using [`AbortController`](https://developer.mozilla.org/en-US/docs/Web/API/AbortController).
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_Requires Node.js 16 or later._
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@example
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```
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import pTimeout from 'p-timeout';
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import delay from 'delay';
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const delayedPromise = delay(3000);
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const abortController = new AbortController();
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setTimeout(() => {
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abortController.abort();
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}, 100);
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await pTimeout(delayedPromise, {
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milliseconds: 2000,
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signal: abortController.signal
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});
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```
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*/
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signal?: globalThis.AbortSignal;
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};
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/**
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Timeout a promise after a specified amount of time.
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If you pass in a cancelable promise, specifically a promise with a `.cancel()` method, that method will be called when the `pTimeout` promise times out.
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@param input - Promise to decorate.
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@returns A decorated `input` that times out after `milliseconds` time. It has a `.clear()` method that clears the timeout.
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@example
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```
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import {setTimeout} from 'node:timers/promises';
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import pTimeout from 'p-timeout';
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const delayedPromise = () => setTimeout(200);
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await pTimeout(delayedPromise(), {
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milliseconds: 50,
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fallback: () => {
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return pTimeout(delayedPromise(), 300);
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}
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});
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```
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*/
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export declare class TimeoutError extends Error {
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readonly name: "TimeoutError";
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constructor(message?: string);
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}
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/**
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An error to be thrown when the request is aborted by AbortController.
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DOMException is thrown instead of this Error when DOMException is available.
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*/
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export declare class AbortError extends Error {
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readonly name: "AbortError";
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constructor(message?: string);
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}
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export default function pTimeout<ValueType, ReturnType = ValueType>(promise: PromiseLike<ValueType> | PCancelable<ValueType>, options: Options<ReturnType>): ClearablePromise<ValueType | ReturnType>;
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//# sourceMappingURL=index.d.ts.map
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{"version":3,"file":"index.d.ts","sourceRoot":"","sources":["../src/index.ts"],"names":[],"mappings":"AAAA,OAAO,WAAW,MAAM,cAAc,CAAC;AAEvC,MAAM,WAAW,gBAAgB,CAAC,CAAC,CAAE,SAAQ,OAAO,CAAC,CAAC,CAAC;IACtD;;OAEG;IACH,KAAK,EAAE,MAAM,IAAI,CAAC;CAClB;AAED,MAAM,MAAM,OAAO,CAAC,UAAU,IAAI;IACjC;;;;OAIG;IACH,YAAY,EAAE,MAAM,CAAC;IAErB;;;;;;;;;;;;;;;;;;;;;OAqBG;IACH,QAAQ,CAAC,EAAE,MAAM,UAAU,GAAG,OAAO,CAAC,UAAU,CAAC,CAAC;IAElD;;;;OAIG;IACH,OAAO,CAAC,EAAE,MAAM,GAAG,KAAK,CAAC;IAEzB;;;;;;;;;;;;;;;;;;;;;;;;OAwBG;IACH,QAAQ,CAAC,YAAY,CAAC,EAAE;QACvB,UAAU,EAAE,OAAO,UAAU,CAAC,UAAU,CAAC;QACzC,YAAY,EAAE,OAAO,UAAU,CAAC,YAAY,CAAC;KAC7C,CAAC;IAEF;;;;;;;;;;;;;;;;;;;;;;;OAuBG;IACH,MAAM,CAAC,EAAE,UAAU,CAAC,WAAW,CAAC;CAChC,CAAC;AAEF;;;;;;;;;;;;;;;;;;;;;;GAsBG;AAEH,qBAAa,YAAa,SAAQ,KAAK;IACtC,QAAQ,CAAC,IAAI,EAAE,cAAc,CAAC;gBAClB,OAAO,CAAC,EAAE,MAAM;CAI5B;AAED;;;EAGE;AACF,qBAAa,UAAW,SAAQ,KAAK;IACpC,QAAQ,CAAC,IAAI,EAAE,YAAY,CAAC;gBAChB,OAAO,CAAC,EAAE,MAAM;CAK5B;AAsBD,MAAM,CAAC,OAAO,UAAU,QAAQ,CAAC,SAAS,EAAE,UAAU,GAAG,SAAS,EACjE,OAAO,EAAE,WAAW,CAAC,SAAS,CAAC,GAAG,WAAW,CAAC,SAAS,CAAC,EACxD,OAAO,EAAE,OAAO,CAAC,UAAU,CAAC,GAC1B,gBAAgB,CAAC,SAAS,GAAG,UAAU,CAAC,CAgF1C"}
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@ -0,0 +1,115 @@
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/**
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Timeout a promise after a specified amount of time.
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If you pass in a cancelable promise, specifically a promise with a `.cancel()` method, that method will be called when the `pTimeout` promise times out.
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@param input - Promise to decorate.
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@returns A decorated `input` that times out after `milliseconds` time. It has a `.clear()` method that clears the timeout.
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@example
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```
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import {setTimeout} from 'node:timers/promises';
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import pTimeout from 'p-timeout';
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const delayedPromise = () => setTimeout(200);
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await pTimeout(delayedPromise(), {
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milliseconds: 50,
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fallback: () => {
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return pTimeout(delayedPromise(), 300);
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}
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});
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```
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*/
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export class TimeoutError extends Error {
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name;
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constructor(message) {
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super(message);
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this.name = "TimeoutError";
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}
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}
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/**
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An error to be thrown when the request is aborted by AbortController.
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DOMException is thrown instead of this Error when DOMException is available.
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*/
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export class AbortError extends Error {
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name;
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constructor(message) {
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super();
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this.name = "AbortError";
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this.message = message;
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}
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}
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/**
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TODO: Remove AbortError and just throw DOMException when targeting Node 18.
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*/
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const getDOMException = (errorMessage) => globalThis.DOMException === undefined
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? new AbortError(errorMessage)
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: new DOMException(errorMessage);
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/**
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TODO: Remove below function and just 'reject(signal.reason)' when targeting Node 18.
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*/
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const getAbortedReason = (signal) => {
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const reason = signal.reason === undefined
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? getDOMException("This operation was aborted.")
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: signal.reason;
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return reason instanceof Error ? reason : getDOMException(reason);
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};
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export default function pTimeout(promise, options) {
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const { milliseconds, fallback, message, customTimers = { setTimeout, clearTimeout }, } = options;
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let timer;
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const cancelablePromise = new Promise((resolve, reject) => {
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if (typeof milliseconds !== "number" || Math.sign(milliseconds) !== 1) {
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throw new TypeError(`Expected \`milliseconds\` to be a positive number, got \`${milliseconds}\``);
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}
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if (milliseconds === Number.POSITIVE_INFINITY) {
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resolve(promise);
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return;
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}
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if (options.signal) {
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const { signal } = options;
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if (signal.aborted) {
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reject(getAbortedReason(signal));
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}
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signal.addEventListener("abort", () => {
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reject(getAbortedReason(signal));
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});
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}
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timer = customTimers.setTimeout.call(undefined, () => {
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if (fallback) {
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try {
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resolve(fallback());
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}
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catch (error) {
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reject(error);
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}
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return;
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}
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const errorMessage = typeof message === "string"
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? message
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: `Promise timed out after ${milliseconds} milliseconds`;
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const timeoutError = message instanceof Error ? message : new TimeoutError(errorMessage);
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if (typeof promise?.cancel === "function") {
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promise?.cancel();
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}
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reject(timeoutError);
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}, milliseconds);
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(async () => {
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try {
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resolve(await promise);
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}
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catch (error) {
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reject(error);
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}
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finally {
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customTimers.clearTimeout.call(undefined, timer);
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}
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})();
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});
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cancelablePromise.clear =
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() => {
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customTimers.clearTimeout.call(undefined, timer);
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timer = undefined;
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};
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return cancelablePromise;
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}
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