index.js

const express = require('express');
const handlebars = require('express-handlebars');
const bodyParser = require('body-parser');
const methodOverride = require('method-override');
const cookieParser = require('cookie-parser');
const db = require('./db');
const PORT = process.env.PORT || 5000;



// Init express app
const app = express();

// Set up middleware
app.use(bodyParser.urlencoded({ extended: true }));
app.use(express.static('public'));
app.use(methodOverride('_method'));
app.use(cookieParser());

// Set handlebars to be the default view engine
app.engine('handlebars', handlebars.create().engine);
app.set('view engine', 'handlebars');

// Import routes to match incoming requests
require('./routes')(app, db);



// Root GET request (it doesn't belong in any controller file)
app.get('/', (request, response) => {
  response.render('home');
});

// Catch all unmatched requests and return 404 not found page
app.get('*', (request, response) => {
  response.render('404');
});


const server = app.listen(PORT, () => console.log('~~~ Tuning in to the waves of port '+PORT+' ~~~'));

// Run clean up actions when server shuts down
server.on('close', () => {
  console.log('Closed express server');

  db.pool.end(() => {
    console.log('Shut down db connection pool');
  });
});