A simple script for downloading all images for a listing on BringATrailer.com

bat-download.js

async function ensureCarouselVisible() {
  const imgWrap = document.elementFromPoint(100, 100);
  if (!imgWrap.classList.contains('pswp__item')) {
    // carousel isn't active, make it so
    document.querySelector('.gallery img').click();
    while (!document.elementFromPoint(100, 100).classList.contains('pswp__item')) {
      await delay(50);
    }
  }
}

function delay(ms) {
  return new Promise((resolve) => setTimeout(resolve, ms));
}

// Find the active image, surround it in an anchor tag, then click it.
async function downloadImage() {
  const imgWrap = document.elementFromPoint(100, 100);
  const img = imgWrap.querySelector('.pswp__img');
  if (!img || !img.src) {
    throw new Error("All images downloaded or next image not found.");
  }
  // Full image hasn't loaded yet, so change the src
  const src = img.src
    .split('?')[0] // get rid of querystring
    .replace('-scaled', ''); // Remove `-scaled` to attempt to get the full res image
  return downloadSrc(src);
}

// Create an anchor then download from it
function downloadSrc(src) {
  const a = document.createElement('a');
  a.href = src;
  a.download = "";
  a.click();
}

function nextImage() {
  document.querySelector('.pswp__button.pswp__button--arrow--right').click();
}

function getCounterValue() {
  const [position, total] = document.querySelector('.pswp__counter').textContent.split('/');
  return parseInt(position.trim(), 10);
}

async function run() {
  await ensureCarouselVisible();
  await delay(500);
  const firstValue = getCounterValue();

  async function preloadLoop() {
    nextImage();
    await delay(50);
    if (getCounterValue() !== firstValue) return preloadLoop(); // recurse
  }

  async function imageLoop() {
    try {
      await downloadImage();
    } catch (e) {
      console.log('done!');
      return;
    }
    nextImage();
    await delay(100);
    // console.log('counter', getCounterValue());
    if (getCounterValue() !== firstValue) return imageLoop(); // recurse
  }
  console.log('Running image preload, please wait...');
  await preloadLoop();
  console.log('Running download...');
  return imageLoop();
}

run()
  .then(() => 
    console.log('Download initiated, please wait until your download folder contains the full number of items.'))
  .catch(console.error);

Had same issues with the script as @handro123 - did not download all pictures.
Tried in MSFT Edge - worked great, all pictures downloaded as .jpeg
Thanks!

Worked like a charm in Chrome. Thanks! Made archiving the photos from a purchase easy.

@aronparsons Glad it's helped you. I've bought a lot of cars on BaT so I use this every 6-9mo or so!