An agile development of a simple PHP / JS app

Please Answer the question below or you will not be considered An agile development of a simple PHP / JS app . The app needs to do three main things: 1. Receive webhook data from clickfunnels (it's just json POST to a URL we specify), decode JSON, pop into shopify sdk to place an order 2. Use a simple PHP Shopify SDK ([login to view URL]) - that I already extended and configured to grab all products from the store (one line of code: $products = $shopify->Product->get();) 3. Generate the code for a shopping cart. The styling is already done, just need to input some cart logic You can see the code for the shopping cart here: [login to view URL] IN YOUR PROPOSAL, RESPOND TO THE FOLLOWING QUESTIONS: -What ELEMENT NAME is clickfunnels' stripe integration looking for to determine how many products were ordered, its price, product id, etc? -So our app knows what shopify variants were ordered, they are updated into a hidden field at_variant_data. Show me an example json output of this field.