base64 encode/decode in Node.js

base64.js

var url = "http://cdn1.giltcdn.com/images/share/uploads/0000/0001/7250/172502872/420x560.jpg";
var encoded = new Buffer(url).toString('base64');
var decoded = new Buffer(encoded, 'base64').toString('ascii')

console.log(encoded);
console.log(decoded);