What is the role of the Controller in Clean Architecture?

In Clean Architecture, the role of the Controller is to act as an intermediary between the user interface (UI) and the business logic of the application. The Controller is responsible for handling user input, converting it into a format that the business logic can understand, and then passing this data to the appropriate use case interactor. Here are the key responsibilities of the Controller in Clean Architecture:

1. Handling User Input: The Controller receives user input from the UI, such as form submissions, button clicks, or other interactions. It interprets this input to determine the user's intentions.

2. Converting Input to Request Models: The Controller converts the raw user input into a request model that is framework-agnostic. This request model is then passed to the use case interactor, which resides in the use cases circle of Clean Architecture[3].

3. Invoking Use Cases: The Controller calls the appropriate methods on the use case interactor to perform the necessary business logic. The use case interactor processes the request and returns a response model.

4. Converting Response Models: The Controller converts the response model from the use case interac...