dom.js

var twitter = require('twit');
var http = require('http');
var https = require('https');
 
var feed = new twitter({
    consumer_key : '...',
    consumer_secret : '...',
    access_token : '...',
    access_token_secret : '...'
});

var itunes_options = {
  host: 'itunes.apple.com',
	port: 443,
	method: 'GET',
	headers: {
		'Content-Type': 'application/json'
	},
};
 

var app = {
	start : function(){

		http.createServer(function (request, response) {
			app.getFeed(response);
		}).listen(1138);

		console.log("Server running"):
	},

	getFeed : function(res){
		feed.get('statuses/user_timeline', function (err, twitterData) {
			if(err){
				return res.end("Error");
			}

			app.processFedd(twitterData, res);
		});
	},

	processFedd : function(twitterData, res){
		var tweets2WaitFor = 0,
			output = [];

		for (var i = 0, m = twitterData.length; i < m; i += 1) {
 
			// Shows the twenty latest tweets of @cratemag
			// console.log(twitterData[i].text);
			
			if (twitterData[i].entities.hashtags.length >= 1) {
				for (var j = 0, mm = twitterData[i].entities.hashtags.length; j < mm; j += 1) {
					tweets2WaitFor++;
					(function(tweet, hashtag){
						app.getGames(hashtag , function(game){
							output.push({
								"tweet" : {
									"text" : tweet.text,
									"screen_name" : '',
							   		"user" : {
				 						"profile_image_url" : ''
									}
								},
								game : game
							}];
							check();
						});
					})(twitterData[i], twitterData[i].entities.hashtags[j]);
					
				}
			}
		}

		function check(){
			if( (tweets2WaitFor -1) === 0 ){
				res.end(JSON.stringify(output));
			} else {
				tweets2WaitFor--;
			}
		};
	},

	getGames : function(twitterData, callback){
		var itunesOutput = "";
		
		itunes_options.path = '/search?term=' + twitterData.text + '&country=DE&entity=software';

		https.get(itunes_options, function (res) {
 
		    res.on('data', function (itunesData) {
		    	itunesOutput += itunesData;
		    });
 
		    res.on('end', function () {
		    	itunesOutput = JSON.parse(itunesOutput);
		    	var game =  app.filterGame( itunesOutput );
		    	callback( game );
		    });

		    res.on('error', function(){
		    	res.end("error");
		    });
		});
	},

	filterGame : function(data){

		if (data.resultCount >= 1) {
			for (var k = 0, mmm = data.resultCount; k < mmm; k += 1) {
    			if (data.results[k].primaryGenreName == 'Games') {
    				return {
		 				"name" : data.results[k].trackName,
		 				"app_icon_100px" : data.results[k].artworkUrl100,
		 				"formattedPrice" : data.results[k].formattedPrice
    			 	};
      			}
    		}
		}
	},
};  

app.start();