Node script for bulk image download, image scraping for the masses

bulk-image-download.js

var fs = require('fs'),
    request = require('request');
    src = require('./dataset.js');  //external array with url of images that need to be downloaded

var download = function(uri, filename, callback){

    request.head({url:uri, followAllRedirects: true}, function(err, res, body){

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

        var content = res.headers['content-type'];
        var ext = content.split('/')
        console.log(ext);
        filename = filename + '.' + ext[1];

        var r = request({url:uri, followAllRedirects: true}).pipe(fs.createWriteStream(filename));
        r.on('close', callback);
        r.on('error', function(err){
            console.log(err)
        });
    });
};

var count = 16;

function doLoad(){
	var ob = src.data[count];
	console.log('attempt', ob);
	download('http:' + ob, 'downloaded/' + count, function(){
		count++;
		if(count>=src.data.length){
			console.log('Done!')
		}else{
			doLoad();
		}
	    
	});
}
doLoad();