Get download progress in Node.js with request

Question

I\'m creating an updater that downloads application files using the Node module request. How can I use chunk.length to estimate the remaining file

Answer 1

Using the cool node-request-progress module, you could do something like this in es2015:

import { createWriteStream } from 'fs'
import request from 'request'
import progress from 'request-progress'

progress(request('http://foo.com/bar.zip'))
 .on('progress', state => {

   console.log(state)

   /*
   {
       percentage: 0.5,        // Overall percentage (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)
       }
   }
   */

  })
  .on('error', err => console.log(err))
  .on('end', () => {})
  .pipe(createWriteStream('bar.zip'))