app.js

const express = require('express');
const nunjucks = require('nunjucks');
const session = require('express-session');
const indexRouter = require('./routes/index-route');

const app = express();

// nunjucks config
nunjucks.configure('views', {
  autoescape: true,
  express: app
});

// init static files
// this files contain css and js for views
app.use(express.static('public'))

// express-session config
app.use(
  session({
    name: 'sid',
    saveUninitialized: false,
    resave: false,
    secret: 'sssh, quiet! it\'s a secret!',
    cookie: {
      maxAge: 1000 * 60 * 60 * 2,
      sameSite: true,
      secure: process.env.NODE_ENV === 'production'
    }
  })
)

// test route
app.get('/index', (req, res) => {
  res.send('App works');
});

// index route
app.use('', indexRouter);

var PORT = process.env.PORT || 8080;
app.listen(PORT, () => { console.log(`Server started at port ${PORT}`) });