Download files with node.js

node-download.js

var fs = require('fs'),
  stub = require('./stub'),
  _ = require('underscore'),
  request = require('request');

// config for local file
var basePath = "images/",
  data = stub.data,
  urlRoot = "http://cdn.catalogs.com/";

// setup path
fs.mkdir(basePath);

// setup download
// http://stackoverflow.com/questions/12740659/downloading-images-with-node-js
var download = function(uri, filename, callback) {
  console.log(uri, filename);

  // make the filename not need a directory
  var file = filename.split('/')[filename.split('/').length - 1];

  request.head(uri, function(err, res, body) {

    console.log('content-type:', res.headers['content-type']);
    console.log('content-length:', res.headers['content-length']);

    var r = request(uri).pipe(fs.createWriteStream(basePath + file));
    r.on('close', callback);
    r.on('error', error);
  });
};

// build src array
pages_src = [];

// iterate through array
_.each(data, function(item) {
  var img_src = item.images.src_large;
  var filepath = (urlRoot + img_src).toString();

  // var directory = _.initial(filename.split('/')).join('/');
  // fs.mkdir(directory);
  download(filepath, img_src, function() {
    console.log('downloaded', img_src);
  });
});

// handle errors
var error = function(message) {
  console.log(message);
};

You can use filename.split('/').pop() to avoid indexing it