hexagonal-architecture

Hexagonal architecture in TypeScript isolates business logic by defining ports and implementing adapters, decoupling the domain from external infrastructure like databases or APIs. This separation ensures your core logic remains independent and maintainable.

Tangled domain logic couples business rules directly to external services, making testing difficult. Hexagonal architecture solves this by decoupling the domain through ports and adapters, enabling comprehensive testing without relying on external data sources or frameworks.

The best way to support multiple payment gateways is implementing hexagonal architecture to define clear interfaces for payment operations. This approach allows easy swapping and testing of different payment methods without altering core domain logic.

To set up ports and adapters, run the hexagonal-architecture skill in your TypeScript project to initialize required directories and interfaces. You must adhere to port and adapter design principles to ensure proper code isolation and testability.

Dependency injection is a key mechanism for implementing hexagonal architecture in TypeScript, facilitating the separation of concerns by injecting adapters into defined ports. This ensures the domain logic remains independent of external dependencies.

You should avoid hexagonal architecture for simple TypeScript scripts or prototypes where defining ports and adapters adds unnecessary overhead. It is best suited for robust projects requiring multiple technologies, frameworks, and strict code isolation.