nestedCallbacks.js

const request = require('request');

request(`https://maciejtreder.github.io/asynchronous-javascript/directors`, {json: true}, (err, res, directors) => {
   let tarantinoId = directors.find(director => director.name === "Quentin Tarantino").id;
   request(`https://maciejtreder.github.io/asynchronous-javascript/directors/${tarantinoId}/movies`, {json: true}, (err, res, movies) => {
       let checkedMoviesCount = 0;
       movies.forEach(movie => {
           request(`https://maciejtreder.github.io./asynchronous-javascript/movies/${movie.id}/reviews`, {json: true}, (err, res, reviews) => {
               checkedMoviesCount++;
               aggregatedScore = 0;
               count = 0;
               reviews.forEach(review => {
                   aggregatedScore += review.rating;
                   count++;
               });
               movie.averageRating = aggregatedScore / count;
               if (checkedMoviesCount === movies.length) {
                   movies.sort((m1, m2) => m2.averageRating - m1.averageRating);
                   console.log(`The best movie by Quentin Tarantino is... ${movies[0].title} !!!`);
               }
            });
       });
   });
});