loading
index.js
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const request = require('request');

let gitUserProfileDetails;

const delay = (duration) => new Promise(resolve => setTimeout(resolve, duration));

const getData = (url) => {

  return new Promise((resolve, reject) => {

    const options = {
      url: url,
      headers: {
        'User-Agent': 'request'
      }
    };

    request(options, (error, response, body) => {
      if (error) {
        reject(error);
      }
      else {
        resolve(body);
      }
    });

  });

};

const main = () => {

  const gitUserProfileUrl = 'https://api.github.com/users/kenanhancer';

  const gitUserProfilePromise = getData(gitUserProfileUrl);

  gitUserProfilePromise
    .then(JSON.parse)
    .then((result) => {
      gitUserProfileDetails = result;

      const { name, blog, location, ...rest } = gitUserProfileDetails;

      console.log({ name, blog, location });

      console.log();

      const followersUrlPromise = getData(gitUserProfileDetails.followers_url).then(JSON.parse);

      return followersUrlPromise;
    })
    .then((result) => {

      console.log(`Followers of ${gitUserProfileDetails.name}:`);

      for (let i = 0; i < result.length; i++) {

        delay(1000 * i)
          .then((a) => {

            console.log((i + 1) + '-', result[i].login, new Date().toLocaleTimeString());
          });
      }
    })
    .catch(console.log);
}

main();
node v10.16.0