FlashGet

Parallel download module & command line tool ( largesize file supported )

FlashGet use http/https module to redirect source url and split file fragment when parallel threads download. fs.writeStream was very smooth running on SolidStateDrive, but if on your iot device, u really need to set low currency.

How to use?

Command line tool

npm i flashget -g

flashget url -c currency threads option -c parallel threads, if your server is hhd, recommended set 2 threads.

flashget -c 20 http://www.mirrorservice.org/sites/releases.ubuntu.com/18.04.3/ubuntu-18.04.3-desktop-amd64.iso

Or u can ignored c param, default is 3

flashget http://www.mirrorservice.org/sites/releases.ubuntu.com/18.04.3/ubuntu-18.04.3-desktop-amd64.iso

downloading( 3%) ⸨=-------------------⸩ 6060kb/s [1000/2000]

Node module

Import flashget to your project, very easy.

npm i flashget

const Downloader = require('flashget');

let task = new Downloader({
    url: 'http://www.mirrorservice.org/sites/releases.ubuntu.com/18.04.3/ubuntu-18.04.3-desktop-amd64.iso',
    currency: 5, // default is 3
    output: './ubuntu-18.04.3-desktop-amd64.iso'
});

task.on('error', (err) => {
    console.log(err);
});

task.on('end', (path) => {
    console.log(`your file download here ${ path }`);
});

task.on('progress', (pro, speed) => {
    console.log('progress', pro);
    console.log('speed', speed + ' kb/s');
});

task.begin();

On chain called

new Downloader({
    url: 'http://www.mirrorservice.org/sites/releases.ubuntu.com/18.04.3/ubuntu-18.04.3-desktop-amd64.iso', // url
    currency: 5, // parallel thread
    output: './ubuntu-18.04.3-desktop-amd64.iso' // save as
})
.on('error', (err) => console.log(err) )
.on('end', (exportname) => console.log(`your file download here ${ exportname }`))
.on('progress', (progress) => console.log( progress ) )
.begin();

Test

npm run test