Création d'un bot pour acheter sur un site internet

Bonjour,
J'ai récupéré un programme. Il s'agit d'un bot pour acheter sur le site nike mais je n'arrive pas à le configurer afin qu'il ajoute l'article souhaiter dans mon panier.
Le lien pour le dossier complet : https://github.com/tylerburleigh/nike-buy-bot
Voici le code:

const puppeteer = require('puppeteer-extra');
const pluginStealth = require("puppeteer-extra-plugin-stealth");
const fs = require('fs');
const {installMouseHelper} = require('./extras/install_mouse_helper');
puppeteer.use(pluginStealth())

// Debugging stuff
const html_path = 'htmls/bot_';
const screenshot_path = 'screenshots/bot_';
const SimpleNodeLogger = require('simple-node-logger'),
 opts = {
  logFilePath: 'logs/' + 'bot.log',
  timestampFormat:'YYYY-MM-DD HH:mm:ss.SSS'
 };
let html = '';


// ####################################
// ####################################
// Parameters to set

// user/pass: the email/username for your Nike.com account
const user = 'myname@gmail.com';
const pass = 'mypassword';

// cv_code: 3-digit credit card validation code for the card saved to your Nike.com account
const cv_code = '123';

// size: the shoe size, as you see in the table of sizes on a product page, e.g., 'M 9 / W 10.5'
const size = 'EU 40';

// url: url to the shoe page, e.g., 'https://www.nike.com/us/launch/t/kobe-4-protro-wizenard/'
const url = 'https://www.nike.com/fr/launch/t/react-vision-gravity-purple/';

// debug: Use debug/logging features?
// Includes writing updates to log file, writing html snapshots, and taking screenshots
const debug = true;

// buy: ****WARNING**** if you set this to true it *may* actually make a purchase
// you can leave this to false and the bot will not "submit order"
const buy = false;





// ####################################
// ####################################
// main flow
(async () => { 

 const browser = await puppeteer.launch({
  ignoreHTTPSErrors: true,
  headless: false
 });

 const page = await browser.newPage();
 
 if(debug == true){ 
  await installMouseHelper(page); // Makes mouse visible
  
  var dir = './htmls';
  if (!fs.existsSync(dir)){
   fs.mkdirSync(dir);
  }
  dir = './screenshots';
  if (!fs.existsSync(dir)){
   fs.mkdirSync(dir);
  }
  dir = './logs';
  if (!fs.existsSync(dir)){
   fs.mkdirSync(dir);
  }
  
  log = SimpleNodeLogger.createSimpleFileLogger( opts );
  log.setLevel('info'); 
  
 }
  
 await page.goto(url);
 page.waitForNavigation({ waitUntil: 'networkidle0' }); // Wait for page to finish loading
 
 
 
 // ##################################################
 // ##################################################
 // ################################## ROUND 1
 // BEGIN
 
 // #### LOG / DEBUG
 if(debug == true){ 
  log.info('1. Page loaded'); 
  html = await page.content();
  fs.writeFileSync(html_path + "_1_loaded_" + Math.floor(new Date() / 1000) + ".html", html);
  page.screenshot({path: screenshot_path + "_1_loaded_" + Math.floor(new Date() / 1000) + '.png'});
 }
 //#### LOG / DEBUG END
 
 await page.waitFor(500);
 
 
 
 
 // ##################################################
 // ##################################################
 // ################################## ROUND 2 
 // Wait for size selector to appear, then scroll to it
 
 await page.waitForSelector('.size-grid-dropdown');
 await page.evaluate(() =>
  document.querySelectorAll(".size-grid-dropdown")[0].scrollIntoView()
 );
 
 // #### LOG / DEBUG
 if(debug == true){ 
  log.info('2. Selectors appeared'); 
  html = await page.content();
  fs.writeFileSync(html_path + "_2_selectors_" + Math.floor(new Date() / 1000) + ".html", html);
  page.screenshot({path: screenshot_path + "_2_selectors_" + Math.floor(new Date() / 1000) + '.png'}); 
 }
 //#### LOG / DEBUG END
 
 await page.waitFor(500);
 
 
 
 
 // ##################################################
 // ##################################################
 // ################################## ROUND 3
 // Pick my size from the options
 
 await page.evaluate(async(size) => {
  let sizes = await Array.from(document.querySelectorAll(".size-grid-dropdown"));
  let sizeIndex = sizes
   .map((s, i) => (s.innerHTML === size ? i : false))
   .filter(Boolean)[0];
  return sizes[sizeIndex].click();
 }, size);
 
 
 //#### LOG / DEBUG
 if(debug == true){ 
  log.info('3. Found and clicked on size');
  html = await page.content();
  fs.writeFileSync(html_path + "_3_size_clicked__" + Math.floor(new Date() / 1000) + ".html", html);
  page.screenshot({path: screenshot_path + "_3_size_clicked_" + Math.floor(new Date() / 1000) + '.png'});
 }
 //#### LOG / DEBUG END
 
 await page.waitFor(500);
 
 
 
 
 // ##################################################
 // ##################################################
 // ################################## ROUND 4 
 // Wait for add to cart button, then scroll into view
 
 await page.waitForSelector('button[data-qa=feed-buy-cta]');
 await page.evaluate(() =>
  document.querySelectorAll("button[data-qa=feed-buy-cta]")[0].scrollIntoView()
 );
 
 //#### LOG / DEBUG
 if(debug == true){ 
  log.info('4. Scrolled to add button');
  html = await page.content();
  fs.writeFileSync(html_path + "_4_scroll_to_add_button__" + Math.floor(new Date() / 1000) + ".html", html);
  page.screenshot({path: screenshot_path + "_4_scroll_to_add_button_" + Math.floor(new Date() / 1000) + '.png'});
 }
 //#### LOG / DEBUG END
 
 await page.waitFor(500);
 
 
 
 
 // ##################################################
 // ##################################################
 // ################################## ROUND 5 
 // Click the add to cart button
 
 await page.evaluate(() =>
  document.querySelectorAll("button[data-qa=feed-buy-cta]")[0].click()
 );

 
 //#### LOG / DEBUG
 if(debug == true){ 
  log.info('5. Clicked add button');
  html = await page.content();
  fs.writeFileSync(html_path + "_5_clicked_add_button__" + Math.floor(new Date() / 1000) + ".html", html);
  page.screenshot({path: screenshot_path + "_5_clicked_add_button_" + Math.floor(new Date() / 1000) + '.png'});
 }
 //#### LOG / DEBUG END
 
 await page.waitFor(500); 
 
 
 
 
 // ##################################################
 // ##################################################
 // ################################## ROUND 6
 // Login
 
 await page.waitForSelector('.emailAddress');
 await page.waitFor(500);
 
 // Username
 await page.focus('.emailAddress > input');
 await page.keyboard.type(user);
 await page.waitFor(200);
 
 // Password
 await page.focus('.password > input')
 await page.keyboard.type(pass);
 await page.waitFor(200);
 
 // Submit
 await page.evaluate(() =>
  document.querySelectorAll(".loginSubmit > input")[0].click()
 ); 

 //#### LOG / DEBUG
 if(debug == true){ 
  log.info('6. Logged in');
  html = await page.content();
  fs.writeFileSync(html_path + "_6_logged_in__" + Math.floor(new Date() / 1000) + ".html", html);
  page.screenshot({path: screenshot_path + "_6_logged_in_" + Math.floor(new Date() / 1000) + '.png'});
 }
 //#### LOG / DEBUG END
 
 await page.waitFor(500); 
 
 
 
 
 // ##################################################
 // ##################################################
 // ################################## ROUND 7
 // Enter credit card info
 
 await page.waitForSelector('.credit-card-iframe');
 await page.waitForSelector('.credit-card-iframe');
 
 await page.evaluate(() =>
  document.querySelectorAll(".credit-card-iframe")[0].scrollIntoView()
 );
 await page.waitFor(200);
 
 const target_frame = page.frames().find(frame => frame.url().includes('paymentcc.nike.com'));
 
 await target_frame.evaluate(
  () => (document.getElementById("cvNumber").focus())
 ); 
 await target_frame.waitFor(1000);
 await page.keyboard.type(cv_code, {delay: 10});
 
 
 //#### LOG / DEBUG
 if(debug == true){ 
  log.info('7. Entered CV');
  html = await page.content();
  fs.writeFileSync(html_path + "_7_entered_cv__" + Math.floor(new Date() / 1000) + ".html", html);
  page.screenshot({path: screenshot_path + "_7_entered_cv_" + Math.floor(new Date() / 1000) + '.png'});
 }
 //#### LOG / DEBUG END
 
 await page.waitFor(500); 
 
 
 
 // ##################################################
 // ##################################################
 // ################################## ROUND 8
 // Click "Save & Continue"
 
 await page.waitForSelector('.save-button');
 const buttons = await page.$$('.save-button');

 await buttons[1].click(); 
 
 //#### LOG / DEBUG
 if(debug == true){ 
  log.info('8. Clicked Save & Continue');
  html = await page.content();
  fs.writeFileSync(html_path + "_8_save_continue__" + Math.floor(new Date() / 1000) + ".html", html);
  page.screenshot({path: screenshot_path + "_8_save_continue_" + Math.floor(new Date() / 1000) + '.png'});
 }
 //#### LOG / DEBUG END
 
 await page.waitFor(500);  
 
 
 
 
 
 // ##################################################
 // ##################################################
 // ################################## ROUND 9
 // Click "Submit Order"
 
 if(buy == true){
  await buttons[2].click();
  
  //#### LOG / DEBUG
  if(debug == true){ 
   log.info('9. Submitted Order');
   html = await page.content();
   fs.writeFileSync(html_path + "_9_submitted_order__" + Math.floor(new Date() / 1000) + ".html", html);
   page.screenshot({path: screenshot_path + "_9_submitted_order_" + Math.floor(new Date() / 1000) + '.png'});
  }
  //#### LOG / DEBUG END
  
  await page.waitFor(500);
  
 }
 
 
 
 
 //await browser.close();
})();

Mon problème ce situe ici :
// Wait for add to cart button, then scroll into view
 
 await page.waitForSelector('button[data-qa=feed-buy-cta]');
 await page.evaluate(() =>
  document.querySelectorAll("button[data-qa=feed-buy-cta]")[0].scrollIntoView()
 );
 
 //#### LOG / DEBUG
 if(debug == true){ 
  log.info('4. Scrolled to add button');
  html = await page.content();
  fs.writeFileSync(html_path + "_4_scroll_to_add_button__" + Math.floor(new Date() / 1000) + ".html", html);
  page.screenshot({path: screenshot_path + "_4_scroll_to_add_button_" + Math.floor(new Date() / 1000) + '.png'});
 }
 //#### LOG / DEBUG END
 
 await page.waitFor(500);
 
 
 
 
 // ##################################################
 // ##################################################
 // ################################## ROUND 5 
 // Click the add to cart button
 
 await page.evaluate(() =>
  document.querySelectorAll("button[data-qa=feed-buy-cta]")[0].click()
 );

 
 //#### LOG / DEBUG
 if(debug == true){ 
  log.info('5. Clicked add button');
  html = await page.content();
  fs.writeFileSync(html_path + "_5_clicked_add_button__" + Math.floor(new Date() / 1000) + ".html", html);
  page.screenshot({path: screenshot_path + "_5_clicked_add_button_" + Math.floor(new Date() / 1000) + '.png'});
 }
 //#### LOG / DEBUG END
 
 await page.waitFor(500);

Pouvez-vous m'aider!!SVP!! Pour me répondre, soit à la suite de ce message soit par mail : ****@*****.**

EDIT : Ajout des balises de code (la coloration syntaxique). Explications disponibles ici : ICI Merci d'y penser dans tes prochains messages.