On the category pages, we developed an easy to navigate functionality that enables users to manage and add product quantity in real-time, right from the category page, without any page reload. This makes it easier for customers to quick-buy and bulk-buy without having to open each product page individually.
We decided to implement this functionality with GraphQL, instead of the default Ajax, to decrease time of adding product to the cart.This change to GraphQL removed almost half a second from the operation processing time.