ios – What’s the distinction between Apple’s Supplier and Shopper class when setting up the community layer?

I’ve just lately been following Apple tutorials with regard to setting up the community layer for an iOS software.

Under is a diagram of my present community layer in my mission.The TaskClient class retrieves the fashions. The TaskProvider class incorporates an occasion of TaskClient and shops the fashions. This TaskProvider is an ObservableObject that’s injected into the atmosphere. With this ObservableObject I can show these fashions within the presentation layer and if they’re up to date the UI refreshes.

I watched a WWDC2022 video Use Xcode for server-side growth, they seem to observe the identical sample for code between consumer and server. On the finish of the video they clarify what must be subsequent and one being the implementation of including, deletion and updating.

I’d assume that these features go into the TaskClient and with the TaskProvider class the view can name these operations.

I’m making an attempt to know what the aim of this Shopper class is. To me the communication between the consumer and distant server and the caching will be achieved within the Supplier class. What’s the distinction between the 2 lessons? What was the necessity for separation?