Marketing Cloud: Streaming Catalog Updates for Shopify

{% for variant in product.variants %}
  _etmc.push(["updateItem", 
         {
          "item": "{{ product.handle }}",   
          "unique_id": "{{ variant.sku }}",
          "name": "{{ product.title }}",
          "url": "https://yourstoredomain{{ product.url }}?variant={{ variant.id }}",
          "item_type": "product",
          "available": "{% if product.available == true %}Y{% else %}N{% endif %}",
          "image_url": "https:{{ product | img_url: "medium" }}",
          "price": "{{ variant.price | money_without_currency }}",
          "description": "{{ product.description }}",
          "Type": "{{ product.type }}",
          "Tags": ["{{ product.tags | join: '", "' }}"]
          }
          ]);
{% endfor %}