architecture-patterns

Hexagonal architecture decouples core domain logic from external concerns using Ports and Adapters. This pattern ensures your application's core remains independent of databases or external APIs, allowing you to swap infrastructure components without modifying business rules.

Domain-driven design is needed for complex backend development when you must model intricate business domains effectively. It utilizes concepts like Value Objects, Aggregates, and Bounded Contexts to ensure your software architecture accurately reflects and manages complex business rules.

To generate a clean architecture project structure in Python, use the architecture-patterns skill. It facilitates building modular applications by scaffolding the necessary codebase layers, satisfying requirements for technology independence and strict dependency management.

The best way to decouple domain logic from external databases is by applying hexagonal architecture or clean architecture. Both patterns enforce strict dependency rules, ensuring your core business logic remains independent of the chosen database or payment gateway.

A limitation of hexagonal architecture is the increased boilerplate and abstraction layers required to define ports and adapters. While it maximizes testability and technology independence for scalable applications, it introduces structural complexity that may be excessive for simple CRUD services.