Express bodyParser

I have a big problem with Node.js and Express.

I want to use the body elements of my request but I dont know how to use the bodyParser() in my program; it's not just app.use()...

See for yourself:

requestServer = function(){
  var express = require('express');
  this.ex = express;

  //this.app = require('express')();
  this.app = express();
  this.server = require('http').createServer(this.app);
  this.io = require('socket.io').listen(this.server, {log: false});
  this.socket = []; 

  this.app.post('/test/', this.testFunction.bind(this));

  this.io.sockets.on('connection', this.socketConnection.bind(this));

  this.app.use(express.bodyParser());
};

...

requestServer.prototype.positionChange = function(req, res){    
  console.log(req.body); // says its undefined???
  console.log(req.body.name); // also undefined :(
};

...

var server = new requestServer();
server.listen(6667);

What am I doing wrong?

If you want to use nodejs, express and bodyParser i suggest you to make yourself clear about the method used for the request. Do you mean to use the get method or the post ? Remember to answer according to the utilization of the information you gain with the communication.

I suppose you want to use the post method because the body parser has been created for the post method, and the query for the get method.

---client side: just write a form element specifying it uses the post method. Give each input element a name. 

 <form method="POST" action="/readRequest">
      <input type="text" name="email" hint="email" value="" size="40"/>
      <inpnut type="submit" value="request" /> 
 </form>

---node side : into the middleware you want to catch the /readRequest, read the values with the '.' operator on the request element

function (req, res, next){ 
  console.log('Email received: '+req.body.email); 
  next();
}

BodyParser is no longer being used widely due to security exploits with it. It is now integrated in Express itself. Don't use it.

Should not this

var server = new requestServer();
server.listen(6667);

be this

var server = new requestServer();
server.app.listen(6667);

Since app is the express object, which is returned. Can you post the full code where positionChange is called.