architecture-patterns

Apply hexagonal architecture by isolating your core business logic inside ports and adapters. This design allows external interfaces like databases or APIs to connect through defined ports, making your backend highly testable and swappable without altering central use cases.

Separate concerns in a legacy monolith by extracting domain logic into independent entities and use cases, wrapping external dependencies behind repository and adapter interfaces, and routing all dependencies through a central composition root to standardize team architecture.

You need domain events in clean architecture when you must decouple side effects from your core use cases. They allow your backend to notify other parts of the system of state changes without hardcoding dependencies, keeping your domain layer maintainable and scalable.

Implement repositories to manage aggregate persistence by defining interfaces as ports within your domain layer. Aggroups encapsulate related entities and enforce business invariants, while repositories handle data retrieval and storage through external adapters.

Clean architecture works for standardizing team backend design by providing structured patterns for entities, use cases, and adapters. It enforces a central composition root and consistent dependency inversion, aligning developers on scalable and testable structural conventions.