hexagonal-architecture

Hexagonal architecture decouples business logic from infrastructure by enforcing clear domain boundaries through explicit inbound and outbound ports, adapter implementations, and a composition root for wiring, which enhances maintainability and testability.

The best way to structure domain-driven design use cases is through pure orchestration, where use cases orchestrate domain rules and coordinate adapters without coupling to frameworks, keeping the domain logic maintainable and testable.

Yes, you can apply ports and adapters architecture across TypeScript, Java, Kotlin, and Go by using an explicit composition root to wire concrete adapters to ports, enabling multi-language service architectures.

You wire concrete adapters to inbound and outbound ports at the composition root by explicitly mapping infrastructure implementations to the defined port interfaces, ensuring dependencies point inward toward the domain.

You need hexagonal boundaries with explicit ports and adapters when your service architecture requires maintainable domain logic, testable use cases, and decoupled infrastructure to prevent framework lock-in.

Yes, hexagonal architecture requires boundary-driven verification to ensure decoupled adapters correctly fulfill port contracts, validating that domain logic remains isolated from infrastructure dependencies.