app.js

var env          = process.env;
var express = require('express');

var port = env.NODE_PORT || 8080;
var addr = env.NODE_IP || 'localhost';

var app = express();

var mute,mono,bass,enab;

var freq;

var volume;



app.get('/', function (req, res) {
    
    var resp = "";
    if(req.query.goal)
    {
        enab = req.query.enab?req.query.enab:enab;
        mute = req.query.mute?req.query.mute:mute;
        bass = req.query.bass?req.query.bass:bass;
        mono = req.query.mono?req.query.mono:mono;

        freq = req.query.freq?req.query.freq:freq;

        vol = req.query.vol?req.query.vol:vol;
    }
        resp+=mute+"-"+mono+"-"+bass+"-"+freq+"-"+vol+"-"+enab;
    res.setHeader('Access-Control-Allow-Origin', '*');
    res.setHeader('Access-Control-Allow-Methods', 'GET, POST, OPTIONS, PUT, PATCH, DELETE');

    res.setHeader("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
    res.send(resp);
    
    
});

app.listen(port, addr, function () {
  console.log('Example app listening on '+addr+':'+port+'!');
});