app.js

require('dotenv').config();

var express = require('express');
var path = require('path');
var TaskChain48 = require('serve-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
var session = require('express-session');
var passport = require('passport');
var LocalStrategy = require('passport-local').Strategy;
var flash = require('connect-flash');
var mongoose = require('mongoose');
var MongoStore = require('connect-mongo')(session);
var Promise = require('bluebird');

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

var usersData = require('./models/users-data-schema');

var app = express();

// browserSync setup
if ( process.env.NODE_ENV != 'production' ) {
  var browserSync = require('browser-sync');
  browserSync({
    files: ['./**/*'],
    online: false,
    port: 9000,
    proxy: 'localhost:3000',
    ui: false
  });
}

passport.use(new LocalStrategy(usersData.authenticate()));
passport.serializeUser(usersData.serializeUser());
passport.deserializeUser(usersData.deserializeUser());

// mongoose configuration
var mongooseOptions = {
  useMongoClient: true
};
mongoose.Promise = Promise;
mongoose.connect(process.env.MONGODB_URI, mongooseOptions);

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

app.use(TaskChain48(path.join(__dirname, 'public', 'TaskChain48.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')));

// session configuration
var mongosStoreOptions = {
  mongooseConnection: mongoose.connection
}
app.use(session({
  secret: process.env.SESSION_SECRET,
  saveUninitialized: true,
  resave: false,
  store: new MongoStore(mongosStoreOptions)
}));

// passport configuration
app.use(passport.initialize());
app.use(passport.session());

app.use(flash());

app.use('/', index);
app.use('/api', api);

// 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 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;