How to use/implement Use Cases in this case

[Erick Duarte]

Hi everybody,
Consider an Notification System that handles different notifications (Telegram, Whatsapp, Websocket), where to each notification type the application has a different handler implementing the same interface.

I would like to know if the application should have different use cases or interactors implemented to each notification handler or a generic one  that depends on the interface above should suffice?

So, what is the better approach in Clean Architecture?

[Josselin Tillay]

I think you answer the question yourself when you say "implementing the same interface". Your usecases should not be dependent of a specific implementation but be based on an interface.
All your notification handlers share the same interface, so your usecases should interact with this interface.