A Node.js application using Express.js

main.js

const port = 3000;
const express = require('express');
const app = express();

const getJSONString = (obj) => JSON.stringify(obj, null, 2);

app
  .get('/', (req, res) => {
    console.log(`Method: ${getJSONString(req.method)}`);
    console.log(`URL: ${getJSONString(req.url)}`);
    console.log(`Headers: ${getJSONString(req.headers)}`);

    res.send('Hello, Express.js!');
  })
  .listen(port, () => {
    console.log(`The Express.js server has started and is listening on port number: ${port}`);
  });

package.json

{
  "name": "express-project",
  "version": "1.0.0",
  "description": "A Node.js application using Express.js",
  "main": "main.js",
  "scripts": {
    "start": "node main.js"
  },
  "author": "Tamas Munkacsi",
  "license": "ISC",
  "dependencies": {
    "express": "^4.17.1"
  }
}