This is where , popularized by Robert C. Martin ("Uncle Bob") in his seminal book, comes to the rescue.
# 1. Inner Circle (Use Case Layer) class UserRepositoryInterface(ABC): # Defined HERE, not in the DB layer @abstractmethod def save(self, user): pass class RegisterUser: def (self, repo: UserRepositoryInterface): # Dependency Injection self.repo = repo arquitectura limpia robert c martin pdf
def execute(self, user_data): user = User(user_data) # Entity self.repo.save(user) # Calls the interface, not the concrete DB This is where , popularized by Robert C
By drawing boundaries around your business logic and using Dependency Inversion, you stop writing "framework-dependent code" and start writing That single refactor is the first step toward
Open your current project. Find one direct call from a Controller (Web layer) to a Database (ORM layer). Insert an Interface in between. That single refactor is the first step toward Clean Architecture. Did this summary help you? If you enjoyed the post, consider buying the official "Clean Architecture: A Craftsman's Guide to Software Structure and Design" by Robert C. Martin to support the author.