You asked, we’re delivering. One of the most requested features for Wix Code is the ability to work with Wix Apps. Starting today, if you have Wix Stores on your site, your store’s Collections and Products are available as collections in your Wix Code database.
This means you’ll be able to use data binding to customize how you display your products and give your visitors more opportunities to see what you have to offer. We also have APIs that let you get information about your products and for working with your site's store from the backend.
Here are some docs to get you started:
About the Collections collection: https://support.wix.com/en/article/wix-stores-collections-collection-columns
About the Product collection: https://support.wix.com/en/article/wix-stores-product-collection-columns
API for the Product page: https://www.wix.com/code/reference/$w.ProductPage.html
API for the Stores backend: https://www.wix.com/code/reference/wix-stores-backend.html