CleanHexagonal

CleanHexagonal is a software architectural pattern that emphasizes the separation of concerns within an application, promoting maintainability, testability, and flexibility. It builds upon the principles of hexagonal architecture, also known as ports and adapters, by advocating for a clear distinction between the core business logic and external interfaces or frameworks.

The pattern centers around the idea that an application's core (the domain) should remain independent of external systems such as databases, user interfaces, or third-party services. This core exposes a set of ports—interfaces that facilitate communication with external components. Adapters then implement these ports, enabling interaction with specific technologies or frameworks without altering the core business logic.

The term "CleanHexagonal" often refers to a refined interpretation of the traditional hexagonal architecture, emphasizing clean separation and minimal coupling. It encourages developers to design modular, loosely coupled components, which simplifies testing and future adaptations.

Implementing CleanHexagonal involves defining clear boundaries within the codebase, using dependency inversion to invert control over external interactions, and ensuring that the core logic remains agnostic of external technology choices. This approach enhances the application's maintainability and scalability by enabling easy substitution or modification of external components.

Overall, CleanHexagonal is valued for fostering robust, adaptable software systems by promoting a clean separation between business rules and external dependencies, aligning with broader principles of modular and clean software design.