How is communication between components within a module implemented when using the Clean Swift approach?

In Clean Swift, communication between components within a module is organized through well-defined protocols and data passing, which ensures low coupling and testability.

Main components of the module:

• Interactor — business logic
• Presenter — data preparation for display
• View Controller — UI display
• Router — navigation

Communication occurs as follows:

1. The View Controller sends requests to the Interactor via a protocol (e.g., doSomething()).
2. The Interactor processes the data and passes the result to the Presenter.
3. The Presenter formats the data and passes it back to the View Controller for display.
4. The Router handles screen transitions, called from the View Controller or Interactor.

All connections are implemented through protocols, allowing easy replacement and testing of components.

Example protocol for the Interactor:

protocol SomeBusinessLogic {
    func doSomething(request: SomeRequest)
}

The View Controller calls interactor.doSomething(request:), and then the data flows through the chain.