cssd-back/node_modules/needle/examples/stream-to-file.js

var fs = require('fs'),
    needle = require('./..'),
    path = require('path');

var url  = process.argv[2] || 'http://www.google.com/images/errors/robot.png';
var file = path.basename(url);

console.log('Downloading ' + file);
needle.get(url).pipe(fs.createWriteStream(file));