app.js

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 i18n = require('i18n');
var mongoose = require('mongoose');
var config = require('./config');

i18n.configure({
  locales: ['en'],
  directory: __dirname + '/locales'
});

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

var app = express();

// Mongoose
mongoose.Promise = global.Promise;
mongoose.connect(config.mongodb_uri, {
  keepAlive: true,
  reconnectTries: Number.MAX_VALUE,
  useMongoClient: true
});
mongoose.set('debug', process.env.NODE_ENV === 'development');

// Add CORS headers for dev
//if (process.env.NODE_ENV === 'development') {
app.use(function(req, res, next) {
  res.setHeader('Access-Control-Allow-Origin', '*');
  res.setHeader(
    'Access-Control-Allow-Methods',
    'GET, POST, OPTIONS, PUT, PATCH, DELETE'
  );
  res.setHeader(
    'Access-Control-Allow-Headers',
    'Origin,Accept, X-Requested-With, Content-Type, Access-Control-Request-Method, Access-Control-Request-Headers, Accept, Key, Authorization'
  );
  res.setHeader(
    'Access-Control-All-Headers',
    'Origin, X-Requested-With, Content-Type, Accept, Key'
  );
  res.setHeader('Access-Control-Allow-Credentials', true);
  res.setHeader('Access-Control-Expose-Headers', 'Authorization');
  next();
});
//}

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

// uncomment after placing your favicon in /public
//app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(
  bodyParser.urlencoded({
    extended: false
  })
);
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));
app.use(i18n.init);

app.use('/', index);

// Catch 404 and forward to error handler
app.use(function(req, res, next) {
  var err = new Error(i18n.__('NOT_FOUND'));
  err.status = 404;
  next(err);
});

// Front-end error handler
app.use(function(err, req, res, next) {
  // Set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // Render the error page
  res.status(err.status || 500);
  res.render('error');
});

module.exports = app;