app.js

var tmdbclient = require('themoviedbclient'); //The data base movie module
var express = require('express')
var Twit = require('twit');
var TwitterBot = require('node-twitterbot').TwitterBot;
var movie_id = '',
    movie_title = '',
    link = '',
    urlTab = [],
    tweetedTab = [];
let url = 'https://www.themoviedb.org/movie/';
//Instanciation
var tmdb = new tmdbclient(process.env.TMDB_API_KEY);
tmdb.call("/movie/upcoming", {})
    .then(function(data) {
        for (var property in data) {
            for (var elt in data[property]) {
                if (typeof data[property][elt].id != 'undefined') {
                    movie_id = data[property][elt].id;
                    movie_title = data[property][elt].title;
                    movie_title = movie_title.replace(/ /g, '-').replace(/'/g, '').replace(/,/g, '').toLowerCase();
                    link = url + movie_id + '-' + movie_title;
                    urlTab.push(link);
                }

            }

        }
        var Bot = new TwitterBot({
            consumer_key: process.env.BOT_CONSUMER_KEY,
            consumer_secret: process.env.BOT_CONSUMER_SECRET,
            access_token: process.env.BOT_ACCESS_TOKEN,
            access_token_secret: process.env.BOT_ACCESS_TOKEN_SECRET,
        });
        var movie = urlTab[Math.floor(Math.random() * urlTab.length)];
        tweetedTab.push(movie);
        console.log(tweetedTab.length);
        for (var i = 0; i <= tweetedTab.length; i++) {
            if (movie != tweetedTab[i]) {
                Bot.tweet('Hey! Here is another upcoming movie. Enjoy!' + '\n' + '@b_mahuton' + ' ' + '@themoviedb' + '\n' + movie);
                console.log('tweeted');
            }
        }
    });