server.js

/*jshint esversion: 8 */
const express = require('express');
const bodyParser = require('body-parser');
const methodOverride = require('method-override');

const PORT = process.env.PORT || 3000;

const app = express();

// Serve static content for the app from the 'public' directory
app.use(express.static(process.cwd() + '/public'));

app.use(bodyParser.urlencoded({
    extended: false
}));

// Override with POST having ?_method=DELETE
app.use(methodOverride('_method'));

// Set Handlebars as the view engine
const exphbs = require('express-handlebars');

app.engine('handlebars', exphbs({
    defaultLayout: 'main'
}));
app.set('view engine', 'handlebars');

// Import routes and give the server access to them.
const routes = require("./controllers/burgersController.js");

app.use(routes);

app.listen(PORT, function() {
    console.log("App now listening at localhost:" + PORT);
});