function User (app) {
  var base = this;
  base.name = Math.floor(Math.random() * 1000000) + "";

  app.send('event-join', {
    'name': base.name
  });
  
  app.receive('event-join', function(json){
    console.log(json);
    app.chat.receive(json.name, "has joined")
  })

}