Tracks the download progress of a request made with mikeal/request, giving insight of various metrics including progress percent, download speed and time remaining
npm install request-progress[![NPM version][npm-image]][npm-url] [![Downloads][downloads-image]][npm-url] [![Build Status][travis-image]][travis-url] [![Coverage Status][coveralls-image]][coveralls-url] [![Dependency status][david-dm-image]][david-dm-url] [![Dev Dependency status][david-dm-dev-image]][david-dm-dev-url]
[npm-url]:https://npmjs.org/package/request-progress
[downloads-image]:http://img.shields.io/npm/dm/request-progress.svg
[npm-image]:http://img.shields.io/npm/v/request-progress.svg
[travis-url]:https://travis-ci.org/IndigoUnited/node-request-progress
[travis-image]:http://img.shields.io/travis/IndigoUnited/node-request-progress/master.svg
[coveralls-url]:https://coveralls.io/r/IndigoUnited/node-request-progress
[coveralls-image]:https://img.shields.io/coveralls/IndigoUnited/node-request-progress/master.svg
[david-dm-url]:https://david-dm.org/IndigoUnited/node-request-progress
[david-dm-image]:https://img.shields.io/david/IndigoUnited/node-request-progress.svg
[david-dm-dev-url]:https://david-dm.org/IndigoUnited/node-request-progress#info=devDependencies
[david-dm-dev-image]:https://img.shields.io/david/dev/IndigoUnited/node-request-progress.svg
Tracks the download progress of a request made with request, giving insight of various metrics including progress percentage, download speed and time remaining.
$ npm install request-progress
``js
var fs = require('fs');
var request = require('request');
var progress = require('request-progress');
// The options argument is optional so you can omit it
progress(request('https://az412801.vo.msecnd.net/vhd/VMBuild_20141027/VirtualBox/IE11/Windows/IE11.Win8.1.For.Windows.VirtualBox.zip'), {
// throttle: 2000, // Throttle the progress event to 2000ms, defaults to 1000ms
// delay: 1000, // Only start to emit after 1000ms delay, defaults to 0ms
// lengthHeader: 'x-transfer-length' // Length header to use, defaults to content-length
})
.on('progress', function (state) {
// The state is an object that looks like this:
// {
// percent: 0.5, // Overall percent (between 0 to 1)
// speed: 554732, // The download speed in bytes/sec
// size: {
// total: 90044871, // The total payload size in bytes
// transferred: 27610959 // The transferred payload size in bytes
// },
// time: {
// elapsed: 36.235, // The total elapsed seconds since the start (3 decimals)
// remaining: 81.403 // The remaining seconds to finish (3 decimals)
// }
// }
console.log('progress', state);
})
.on('error', function (err) {
// Do something with err
})
.on('end', function () {
// Do something after request finishes
})
.pipe(fs.createWriteStream('IE11.Win8.1.For.Windows.VirtualBox.zip'));
`
If the request's response does not include the content-length header, the values of some metrics will be null.speed
Also and time.remaining will be null until it can be calculated.
The state object emitted in the progress event is reused to avoid creating a new object for each event. state
If you wish to peek the object at any time, it is available in request.progressState.
$ npm test $ npm test-cov` to get coverage report
Released under the MIT License.