Simple Express Web Server

index.js

let path = require('path');
let express = require('express');

let port = process.env.PORT || 8080;
let isProduction = process.env.NODE_ENV === 'production';

let app = express();

app.get('/', (req, res) => {
  res.send('Hello World!');
});

app.listen(port, () => {
  console.log('online');
});