NodeJS: How to save facebook profile picture

Question

I am using express and nodejs and am having problems saving facebook profile pictures to my server.

Location of picture: http://profile.ak.fbcdn.net/hprofile-ak-ash2/275619_223605264_963427746_n.jpg

Script Being Used:

    var http = require('http')
    var fs = require('fs')

    var options = {
      host: 'http://profile.ak.fbcdn.net',
      port: 80,
      path: '/hprofile-ak-ash2/275619_223605264_963427746_n.jpg'
    }

    var request = http.get(options, function(res){
      res.setEncoding('binary')

      var imagedata = ''
      res.on('data', function (chunk) {imagedata += chunk})

      res.on('end', function(){
        fs.writeFile('logo.jpg', imagedata, 'binary', function (err) {
          if(err){throw err}
          console.log('It\'s saved!');
        })
      })
    })

The image saves but is empty. Console logging the image data is blank too. I followed this example origionally which does work for me. Just changing the location of the image to the facebook pic breaks the script.

Answer 1

I ended up coming up with a function that worked:

var http    = require('http');
var fs  = require('fs');
var url     = require('url');

var getImg = function(o, cb){
    var port    = o.port || 80,
        url     = url.parse(o.url);

    var options = {
      host: url.hostname,
      port: port,
      path: url.pathname
    };

    http.get(options, function(res) {
        console.log("Got response: " + res.statusCode);
        res.setEncoding('binary')
        var imagedata = ''
        res.on('data', function(chunk){
            imagedata+= chunk; 
        });
        res.on('end', function(){
            fs.writeFile(o.dest, imagedata, 'binary', cb);
        });
    }).on('error', function(e) {
        console.log("Got error: " + e.message);
    });
}

USAGE:

    getImg({
        url: "http://UrlToImage.com",
        dest: __dirname + '/your/path/to/save/imageName.jpg'
    },function(err){
        console.log('image saved!')
    })