.NET Core Microservices - Configure Shopping Cart API with New Methods

The video tutorial explains how to enhance a shopping cart API by adding methods to apply and remove coupons. It covers the implementation of these methods in the repository, including retrieving and updating the card header from the database. The tutorial also details the addition of endpoints in the cart controller to handle these operations, ensuring the API can process coupon applications and removals effectively.

What is the return type of the method used to apply a coupon?

How do you implement the endpoints for applying and removing coupons in the CART controller?