hexagonal-architecture

Hexagonal architecture, or ports and adapters, isolates core domain logic by defining application use cases and ports, orchestrating infrastructure adapters externally to ensure strict separation of concerns and high testability across software layers.

To implement domain-driven design, structure your core layer using entities and value objects, define repository interfaces as ports, and orchestrate data persistence through external infrastructure adapters to ensure modular software design.

Use ports and adapters when designing features involving core business logic and data persistence, requiring strict dependency rules and high testability, to ensure a clean, scalable, and maintainable software architecture.

Structure application use cases in clean architecture by implementing commands, queries, and external service ports within the application layer, orchestrating infrastructure adapters to handle user interactions and data persistence.

Hexagonal architecture does not require specific frameworks, as it provides structural guidance for defining domain services, domain events, and repository interfaces using plain code to maintain framework independence.