Download Telegram Stickers (UPDATED)

downloadTelegramStickers.js

// DOM query helpers
// These two do 90% of what you need JQuery for
function qs(query, el = window.document) {
  return el.querySelector(query);
}

function qsa(query, el = window.document) {
  return Array.from(el.querySelectorAll(query));
}

// Trigger a download
function download(image) {
  // Create a dummy element
  var a = document.createElement('a');
  a.href = image;
  // `download` attribute means that clicks trigger download
  a.download = "";
  document.body.appendChild(a);
  a.click();
  document.body.removeChild(a);
}

function downloadStickers() {
  // Find all sticker sets
  const sets = qsa('#content-stickers .emoji-category')
    // We need it's title to prompt users
    .map(set => {
      const $title = qs('.category-title', set);
      const $items = qs('.category-items', set);
      
      return {
        title: $title.innerText,
        node: $items,
      };
    })
    // Those without key aren't packs. "Frequently used" for example.
    .filter(({title, set}) => title !== '' && title !== "Recent");
  
  // Join them into a list of keys-titles
  const availableSets = sets
        .map(({title}, i) => `[${i}]: ${title}`)
        .join('\n')
  console.log(availableSets)
  // Ask which pack the user want to download
  const selectedSet = prompt(availableSets);
  
  // Find all images
  qsa('img', sets[+selectedSet].node)
      // Only care about it's URL
      .map(i => i.attributes.src.value)
      // Filter those with `sticker` in the URL
      // .filter(i => /sticker/.test(i)))
      // Download all
      .forEach(download);
}

downloadStickers()