httpPagination

const API_URL = 'https://jsonmock.hackerrank.com/api/articles?author=';

async function fetchData(query) {
  return new Promise(function (resolve, reject) {
    https.get(`${API_URL}${query}`, (resp) => {
      let data = '';

      // A chunk of data has been recieved.
      resp.on('data', (chunk) => {
        data += chunk;
      });

      // The whole response has been received. Print out the result.
      resp.on('end', () => {
        resolve(JSON.parse(data));

      }).on("error", (err) => {
        reject('Err: ');
      });
    })
  })
}

async function getArticleTitles(author) {
  let arrayOfTitles = [], totalPages = 1, currentPage = 1, promises = [];
  let response = await fetchData(author);
console.log(response)
  totalPages = response.total_pages;
  currentPage = response.page;

  arrayOfTitles = getTitles(response.data);

  for (let i = currentPage + 1; i <= totalPages; i++) {
    promises.push(fetchData(`${author}&page=${i}`));
  }
  let resp = await Promise.all(promises);
  arrayOfTitles.push(...getArticlesFromPromise(resp));
  return arrayOfTitles;
}

function getArticlesFromPromise(promisesResp) {
  let arrayOfTitles = [];
  promisesResp.map(article => {
    arrayOfTitles.push(...getTitles(article.data));
  });
  return arrayOfTitles;
}

function getTitles(articles) {
  let arrayOfTitles = [];
  articles.map(article => {
    if (article.title) {
      arrayOfTitles.push(article.title)
    } else if (article.story_title) {
      arrayOfTitles.push(article.story_title)
    }
  });
  return arrayOfTitles;
}

getArticleTitles('patricktomas').then(r => console.log(r));