Node Get Request

var http = require('http');
var express = require('express');
var numeral = require('numeral');
var moment = require('moment');
var open = require('open')

var app = express();

var port = 3000;

app.listen(port, function(err){
    open('http://localhost:' + port);
});

app.get('/', function(req, rep){
    rep.write('Everything is good');
    rep.end();
});

app.get('/btc', function(req, resp){
    resp.write('Todays price...')
    btc(function(data){
        resp.write('Price: ' + data.price + '\r');
        resp.write('Date: ' + data.timeStamp);
        resp.end();
    });
});

function btc(callback){

    var options = {
        hostname: 'winkdex.com',
        path: '/api/v0/price',
        method: 'GET',
        port: 80,
        headers: {}
    };

    http.request(options, function(resp){

        var data = '';
        var btc = {};

        resp.on('data', function(chunk){
            data += chunk
        });

        resp.on('end', function(){
            var result = JSON.parse(data);
            btc.price = numeral(result.price / 100).format('$0.00');
            btc.timeStamp = moment(result.timestamp).format('DD/MM/YYYY');

            callback(btc);
        });

    }).on('error', function(err){
        console.log(err);
    }).end();
}