Express Starter App

express-starter-app.js

const express = require('express');

// Call the `express` function to create the Express application.
const app = express();

// Define a GET route for the path `/`.
app.get('/', (req, res) => {
  // Return a JSON formatted response.
  res.json({ message: 'Hello world!' });
});

const port = 8081;

// Start the app listening on the provided port.
// The callback function will be called once the server has been started.
app.listen(port, () => console.log(`Listening at http://localhost:${port}...`));