Full node http get solution

Retriever

var http = require("http");

Retrieve = function(){

    console.log("retrieve");

    /**
     * Executes a GET request on the given url and returns a JSON object.
     * Default timeout is 20 seconds. 
     * @param url
     * @param callback
     */
    this.getFeed = function(url,callback){
        var result = null;
        var timeout = 20000;

        http.get(url,function(response){
            //console.log("response: " + response.statusCode);
            response.setEncoding('utf8');
            response.setTimeout(timeout,function(err){
                console.log("request timed out");
                callback(null,"Request timed out");
            })
            response.on('data',function(data){
                result = result + data;
            })

            response.on('end',function(){
                callback(null,result);
            })
        });
    }
}

exports.Retrieve = Retrieve;