index.js

// https://ballpit.github.io/website/pics.zip

const fs = require('fs')
const get = require('simple-get')
const pump = require('pump')
const path = require('path')

get('https://ballpit.github.io/website/pics.zip', (err, res) => {
  if (err) throw err

  const outStream = fs.createWriteStream(path.join(__dirname, 'pics.zip'))

  pump(res, outStream, (err) => {
    if (err) throw err
    console.log('done')
  })
})

package.json

{
  "name": "download-example",
  "version": "0.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "keywords": [],
  "author": "Bret Comnes <bcomnes@gmail.com> (https://bret.io/)",
  "license": "MIT",
  "dependencies": {
    "pump": "^3.0.0",
    "simple-get": "^4.0.0"
  }
}