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bluebird-delay

v0.1.1

Published

This library provides a method for creating cancelable and unreferencable delays with Bluebird promises

Downloads

6

Readme

bUild Status NPM Status

Overview

This library provides a method for creating cancelable and unreferencable delays with Bluebird promises.

While Bluebird provides a method for delaying, you cannot unreference the timer nor can you cancel the promise.

Examples of use:

var Promise = require("bluebird");
var bluebirdDelay = require("bluebird-delay");

var p1 = bluebirdDelay(1000); // Create a promise that can be canceled and wait 1000ms
.then(function () { /* Post delay action */ })
.catch(Promise.CancellationError, function(e) { /* first delay was canceled */ });
.then(function() { return bluebirdDelay(1000, { unref: true }); });
.catch(Promise.CancellationError, function(e) { /* second delay was canceled */ });

p1.cancel(); // Force the promise to cancel immediately

API

bluebirdDelay(timeout, options)

Returns a cancelable promise that waits up to timeout milliseconds.

Options:

  • unref - Unreferences the timer so that the timer does not prevent Node from exiting
    • REMINDER - if you unref the delay, then Node may exit even while waiting on the delay to proceed with the promise - even if the promise has more actions after the timeout. Use this option with care!

Contributing

Any PRs are welcome but please stick to following the general style of the code and stick to CoffeeScript. I know the opinions on CoffeeScript are...highly varied...I will not go into this debate here - this project is currently written in CoffeeScript and I ask you maintain that for any PRs.