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

var gitUserProfileDetails;


function delay(duration) {
  return new Promise(resolve => setTimeout(resolve, duration));
}

function getData(url) {

  return new Promise(function (resolve, reject) {

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

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

function main() {

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

  var gitUserProfilePromise = getData(gitUserProfileUrl);

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

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

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

      console.log();

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

      return followersUrlPromise;
    })
    .then(function (result) {

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

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

        (function (x) {

          delay(1000 * x)
            .then(function (a) {

              console.log((x + 1) + '-', result[x].login);
            });

        })(i);
        
      }
    })
    .catch(function (error) {

      console.log(error);
    });
}

main();