The Interface Adapters Layer: Controllers and Presenters
In Chapters 4 and 5, we built the core of our task management system—the domain entities that represent our business concepts and the use cases that orchestrate them. The Application layer’s request/response models handle translation between use cases and domain objects, ensuring our core business rules remain pure and focused. However, there’s still a gap between these use cases and the outside world such as web interfaces or command-line tools. This is where the Interface Adapters layer comes in.
The Interface Adapters layer serves as the translator between our application’s core and external concerns. It converts data between formats convenient for external agencies and those expected by our use cases. Through carefully designed controllers and presenters, this layer maintains the architectural boundaries that keep our core business rules isolated and maintainable.
In this chapter, we&...
