twilio server in express

app.js

var express = require('express'); 
var app = express();
app.use(express.logger('dev'));
app.use(express.bodyParser());
app.use(app.router);
app.post('/upload', function(req, res){
   if(req.files.myUpload){
     var python = require('child_process').spawn(
     'python',
     // second argument is array of parameters, e.g.:
     ["/home/me/pythonScript.py"
     , req.files.myUpload.path
     , req.files.myUpload.type]
     );
     var output = "";
     python.stdout.on('data', function(){ output += data });
     python.on('close', function(code){ 
       if (code !== 0) {  return res.send(500, code); }
       return res.send(200, output)
     });
   } else { res.send(500, 'No file found') }
});

require('http').createServer(app).listen(3000, function(){
  console.log('Listening on 3000');
});

script.js

var exec = require('child_process').exec;
var child = exec('node ./commands/server.js');
child.stdout.on('data', function(data) {
    console.log('stdout: ' + data);
});
child.stderr.on('data', function(data) {
    console.log('stdout: ' + data);
});
child.on('close', function(code) {
    console.log('closing code: ' + code);
});

server.js

var express = require('express'),
    bodyParser = require('body-parser');
 
var app = express();
app.use(bodyParser.urlencoded({
    extended: false
}));
 
app.post('/ring', function(req, res) {
    var from = req.body.From,
        body = req.body.Body;
 
    // do whatever
    // ...
 
    res.send(200);
});