server.js

/**
 * 
 * Module Dependencies
 * 
 * */
 var express = require('express');
 var app = express();
 var http = require('http').Server(app);
 var path = require('path');
 var bodyParser = require('body-parser');
 var io = require('socket.io')(http);
 var rethinkdb = require("./rethinkDB.js");
 var mongoDB = require("./mongoDB.js");
 var pgrouting = require("./pgrouting.js");
 

/**
 * 
 * View engine
 * 
 * */
 app.set('views', path.join(__dirname, 'views'));
 app.set('view engine', 'jade');
 
 app.use(bodyParser.json()); //json as param support
 app.use(bodyParser.urlencoded({ extended: false })); //data as param support
 app.use(express.static(path.join(__dirname, 'public'))); //Make resources public
 app.use('/mapa', express.static('public')); //Make resources public at mapa/css/xxx
 app.use(express.static(path.join(__dirname, 'test'))); //Make test directory public... for... testing.... 
 
 
 /**
  * 
  * Set rethinkDB and mongoDB as a global resource.
  * Somebody please optimize this @_@.
  * 
  * */
  app.use( function(req, res, next) {
      res.header("Access-Control-Allow-Origin", "*");
      res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
      req.rethinkdb = rethinkdb;
      req.mongoDB = mongoDB;
      req.io = io;
      req.pgrouting = pgrouting;
      next();
  });


/**
 * 
 * Routers controllers
 * 
 * */
 var indexRouter = require("./routes/router.js");
 var mapaRouter = require("./routes/map.js");
 var carRouter = require("./routes/car.js");
 
 
 app.use("/", indexRouter);
 app.use("/mapa", mapaRouter);
 app.use("/car", carRouter);


/**
 * 
 * Service Configuration
 * 
 * */
app.set('port', process.env.PORT || 16502);


/**
 * 
 * Start
 * 
 * */
http.listen(app.get('port'), function(){
  console.log('Express server listening on port ' + app.get('port'));
  
  /**
   * 
   * RethinkDB listener.
   * When a change happens in the database it's sent through broadcasting with all the new information to the clients.
   * 
   * */
   rethinkdb.listenUpdates(io);
});