app.js

var express = require('express'),
    path = require('path'),
    favicon = require('serve-favicon'),
    logger = require('morgan'),
    cookieParser = require('cookie-parser'),
    bodyParser = require('body-parser'),
    config = require('./config'),
    db = require('./db'),
    validator = require('express-validator');

const session = require('express-session');
const MongoStore = require('connect-mongo')(session);

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

var app = express();

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

// uncomment after placing your favicon in /public
//app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
app.use(logger('dev'));
app.use(session({
  secret: config.get('session:secret'),
  store: new MongoStore({
    mongooseConnection: db
  })
}));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({extended: false}));
app.use(cookieParser());
app.use(validator({
  errorFormatter: function(param, msg) {
    var namespace = param.split('.')
        , root    = namespace.shift()
        , formParam = root;

    while(namespace.length) {
      formParam += '[' + namespace.shift() + ']';
    }
    return {
      field  : formParam,
      message: msg
    };
  },
  customValidators: {
    isPhoneUA: function(value) {              //'ua-UA':
      return /^(\+380)[0-9]{9}$/.test(value);
    }
  }

}));

//app.use(auth);

app.use('/', routes);

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

// catch 404 and forward to error handler
app.use(function (req, res, next) {
  var err = new Error('Not Found');
  err.status = 404;
  next(err);
});

// error handlers

//app.set('env', 'prod');

// development error handler
// will print stacktrace
if (app.get('env') === 'development') {
  app.use(function (err, req, res, next) {
    res.status(err.status || 500);
    res.render('error', {
      message: err.message,
      error: err
    });
  });
}

// production error handler
// no stacktraces leaked to user
app.use(function (err, req, res, next) {
  res.status(err.status || 500);
  res.render('error', {
    message: err.message,
    error: {}
  });
});

module.exports = app;