Lately, I have been working with eCommerce Mobile applications to treat Shopify and woo-commerce as a headless CMS. Display Projects and the ability to add to Cart and to checkout to place a successful order.
After completing the Cart, the only problem I had was making a similar checkout system that both Shopify and WordPress support. After a couple of research hours, I decided to use web view and handle checkout steps directly from the website.
We all know that Shopify supports add to cart directly from the link, So
http://<You Store>.myshopify.com/cart/<varaiant Id>:<quantity> this will let you add an item the current session of the website and proceed with the checkout process.
You can learn more about it on How to Auto-Add Products & Discount to Shopify Cart via URL | Elevar (getelevar.com)
But it was not possible to do such a thing with Woocommerce, Since the only link to the cart that woo-commerce provide just let you add just one product at a time. So I had to Custom Build a plugin and clone the functionality of Shopify add to cart link.
Simple Add To Cart is a plugin that will let you easily add multiple products into a cart of your browser’s current section and their quantity.
You can install the plugin from here.
And After Activating the plugin, you will be able to
1- Append Products on a cart
2- Reset products and add products to the cart.