UpdateCartItems

What it does

This class processes updates to items in a GraphQL cart, handling quantity changes, customizable options, and gift messages.

Developers use this when implementing the updateCartItems GraphQL mutation to modify existing cart items, delete items (when quantity is 0 or less), or add/update gift messages for individual items.

It validates input data and coordinates between the cart item repository, update services, and gift message services.

Public Methods

• processCartItems()