[NodeJS] HTTP Request without dependencies // https://www.tomas-dvorak.cz/posts/nodejs-request-without-dependencies/

app.js

const request = function(url) {
    return new Promise((resolve, reject) => {
      const lib = url.startsWith('https') ? require('https') : require('http');
      const request = lib.get(url, (response) => {
        if (response.statusCode < 200 || response.statusCode > 299) {
           reject(new Error('Failed to load page, status code: ' + response.statusCode));
         }
        const body = [];
        response.on('data', (chunk) => body.push(chunk));
        response.on('end', () => resolve(body.join('')));
      });
      request.on('error', (err) => reject(err))
      })
  };

request('https://news.ycombinator.com/')
  .then((html) => console.log(html))
  .catch((err) => console.error(err));