server.js

                    require('babel/register'); // Install `babel` hook
var express       = require('express');
var app           = express();
var path          = require('path');
var mongoose      = require('mongoose');
var flash         = require('connect-flash');
var morgan        = require('morgan');
var cookieParser  = require('cookie-parser');
var bodyParser    = require('body-parser');
var session       = require('express-session');
var fs            = require('fs');
var passport      = require('passport');
var favicon       = require('serve-favicon');

var settings        = require('./config/settings.js');
var secrets         = require('./config/secrets.js');
var passportConfig  = require('./config/passport');
var port            = process.env.PORT || settings.ports.server;


// ======================================================================
// Setup the database

mongoose.connect(secrets.mongoUrl);

// ======================================================================
// set up logging

app.use(morgan('dev')); // log every request to the console

// ======================================================================
// Server configuration. If using nginx you might want to var nginx handle these instead

// Enable cross-origin resource sharing (CORS)
var cors = require('cors');
app.use(cors());

// Enable compression
var compression = require('compression');
app.use(compression());

// ======================================================================
// Serve static assets in the public directory. In production serve assets in build as well
//app.use(favicon(path.join(__dirname, '/app/assets/favicon.ico')));

app.use(express.static(path.join(__dirname, 'app/assets')));

if (process.env.NODE_ENV === "production"){
  // In production serve a static directory for the webpack-compiled js and css.
  // In development the webpack dev server handles js and css
  app.use('/build', express.static(path.join(__dirname, '/build')));
}

// ======================================================================
// Parse Cookies, forms and urls

app.use(cookieParser()); // read cookies (needed for auth)
app.use(bodyParser.json()); // get information from html forms
app.use(bodyParser.urlencoded({ extended: true }));

// ======================================================================
// Use ejs for server side templates

app.set('view engine', 'ejs');

// ======================================================================
// Configure session
app.use(session({
  secret: secrets.sessionSecret,
  resave: false,
  saveUninitialized: true
}));

// ======================================================================
// Configure views and routes
app.set('views', __dirname + '/app/views');

// ======================================================================
// Load Controllers
function loadControllers(dir){
  var controllers = {};
  fs.readdirSync(dir).forEach(function(file){
    if(file.substr(-3) == '.js'){
      var name = file.replace('.js', '');
      console.log('Loading controller ' + name);
      controllers[name] = require(dir + file)(app, passport);
    }
  });
  return controllers;
}

var controllers = loadControllers(path.join(__dirname, './app/controllers/'));
controllers.strategies = loadControllers(path.join(__dirname, './app/controllers/strategies/'));

// ======================================================================
// Setup passport
passportConfig(passport, controllers);

app.use(passport.initialize());
app.use(passport.session());
app.use(flash()); // use connect-flash for flash messages stored in session


// ======================================================================
// Setup routes
require('./app/routes.js')(app, controllers);


// ======================================================================
// Launch
app.listen(port);

if (process.env.NODE_ENV !== "production") {
  console.log('Listening on port ' + port);
}