<script id='merchantWidgetScript' src="https://www.gstatic.com/shopping/merchant/merchantwidget.js" defer></script>

<script>
  merchantWidgetScript.addEventListener('load', function () {
    merchantwidget.start({
         // REQUIRED FIELDS
         merchant_id: 5827214855,

         // OPTIONAL FIELDS
         position: POSITION,
         region: REGION,
    });
  });
</script>