nestjs-api

Structure a NestJS API with hexagonal architecture by isolating the core domain from infrastructure adapters. This approach enforces clean separation of concerns using ports and adapters, enabling independent testing and evolution of domain boundaries across enterprise services.

Implement CQRS in a NestJS API by defining clear write and read models. This pattern separates commands and queries, and supports domain events alongside repository interfaces to handle complex business logic robustly without coupling operations.

Separate domain logic from infrastructure in a NestJS module by applying ports and adapters. This isolates application, domain, and infrastructure layers, reducing coupling and aligning code organization directly with domain concepts for cohesive boundaries.

Yes, this NestJS API structure supports Swagger-based validation. It integrates validation within a modular API skeleton spanning application, domain, and infrastructure layers to ensure scalable enterprise-grade services.

Use hexagonal architecture for a NestJS API when building complex enterprise services requiring easy maintenance and evolution. It aligns code organization with domain concepts, ensuring testable boundaries and clean separation as business rules change.