app.js

const express = require('express');
const helmet = require('helmet');
const bodyParser = require('body-parser');
const childProc = require('child_process');
const compression = require('compression');
const app = express();

app.use(helmet());
app.use(compression());

const port = process.env.port || 8080; 

app.use(bodyParser.json()); // parse incoming requests
app.use(bodyParser.urlencoded({ extended: false }));


app.set('port', (process.env.PORT || 8080));
app.use(express.static(__dirname + '/public'));

app.set('view engine', 'pug'); // engine - pug
app.set('views', __dirname + '/views');

const routes = require('./routes/index'); // include routes
app.use('/', routes);

// catch 404 then forward to error handler
app.use((req, res, next) =>
{
  let err = new Error('404, File Not Found');
  err.status = 404;
  next(err);
});

app.listen(app.get('port'), () =>
{
  console.log(`app is running on http://localhost:${port}`);
});

childProc.exec(`open -a "Google Chrome" http://localhost:${port}`, () =>
{
 console.log(`Open on: http://localhost:${port}`);
});