Architecture

Clean Architecture in Golang separates concerns into distinct layers like Domain, Usecase, and Adapter. This approach enforces dependency inversion and interface segregation to ensure maintainability and scalability across your application structure.

The recommended standard project layout for Golang uses directories like cmd, internal, and pkg. This package-oriented design organizes code effectively, separating executable entry points from internal application logic and reusable public packages.

Dependency injection in Golang is implemented through explicit interface-based design. By defining interfaces at the point of use and injecting concrete implementations, you enforce dependency inversion and decouple your core business logic from external adapters.

You need the cmd, internal, and pkg directories when organizing a Golang project for maintainability. The cmd directory holds main entry points, internal restricts private application code, and pkg exposes reusable public libraries for external import.

Domain-Driven Design integrates with the standard Go project layout by structuring project files around domain boundaries. This combination supports package-oriented design and interface segregation, ensuring your architecture aligns with business requirements and Clean Architecture principles.

The best way to enforce separation of concerns in Golang is by applying Clean Architecture principles. This involves dividing your codebase into explicit Domain, Usecase, and Adapter layers, which isolates business rules from infrastructure and external frameworks.