server.js

#!/bin/env node
var express = require('express');
var path = require('path');
var favicon = require('serve-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');

var baseRoutes = require('./routes/index');

var App = function(){

  // Scope
  var self = this;

  // Setup
  self.ipaddr  = process.env.OPENSHIFT_NODEJS_IP;
  self.port    = parseInt(process.env.OPENSHIFT_NODEJS_PORT) || 8080;

  if (typeof self.ipaddr === "undefined") {
    console.warn('No OPENSHIFT_NODEJS_IP environment variable');
  };

  // Web app logic
  self.routes = {};
  self.routes['health'] = function(req, res){ res.send('1'); };

  self.routes['root'] = function(req, res){
    self.db.collection('names').find().toArray(function(err, names) {
        res.header("Content-Type:","text/json");
        res.end(JSON.stringify(names));
    });
  };

  // Webapp urls
  self.app  = express();

  // view engine setup
  self.app.set('views', path.join(__dirname, 'views'));
  self.app.set('view engine', 'ejs');

  // uncomment after placing your favicon in /public
  //app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
  self.app.use(logger('dev'));
  self.app.use(bodyParser.json());
  self.app.use(bodyParser.urlencoded({ extended: false }));
  self.app.use(cookieParser());
  self.app.use(express.static(path.join(__dirname, 'public')));

  self.app.use('/', baseRoutes);
  self.app.use('/lib/', express.static(path.join(__dirname, 'node_modules')));
  self.app.get('/', baseRoutes);

  self.app.get('/health', self.routes['health']);

  //starting the nodejs server with express

  self.startServer = function(){
    self.app.listen(self.port, self.ipaddr, function(){
      console.log('%s: Node server started on %s:%d ...', Date(Date.now()), self.ipaddr, self.port);
    });
  }

  // Destructors
  self.terminator = function(sig) {
    if (typeof sig === "string") {
      console.log('%s: Received %s - terminating Node server ...', Date(Date.now()), sig);
      process.exit(1);
    };
    console.log('%s: Node server stopped.', Date(Date.now()) );
  };

  process.on('exit', function() { self.terminator(); });

  self.terminatorSetup = function(element, index, array) {
    process.on(element, function() { self.terminator(element); });
  };

  ['SIGHUP', 'SIGINT', 'SIGQUIT', 'SIGILL', 'SIGTRAP', 'SIGABRT', 'SIGBUS', 'SIGFPE', 'SIGUSR1', 'SIGSEGV', 'SIGUSR2', 'SIGPIPE', 'SIGTERM'].forEach(self.terminatorSetup);

};

//make a new express app
var app = new App();

//call the connectDb function and pass in the start server command
app.startServer();