Simple HTTP server to output request url and post body

Node.js HTTP Server

// content of index.js
const http = require('http')
const port = 3000

const requestHandler = (request, response) => {
  console.log("URL: %s", request.url)
  if (request.method === 'POST') {
    let body = '';
    request.on('data', chunk => {
        body += chunk.toString(); // convert Buffer to string
    });
    request.on('end', () => {
        console.log("body => %s", body);
        response.end('ok');
    });
  }
}

const server = http.createServer(requestHandler)

server.listen(port, (err) => {
  if (err) {
    return console.log('something bad happened', err)
  }

  console.log(`server is listening on ${port}`)
})