What architecture do you use in Go applications?

In Go applications, architecture based on Clean Architecture or hexagonal architecture is often used. This allows separating business logic from infrastructure and interfaces, which enhances testability and scalability.

Main layers:

• Domain (business logic) — contains entities and business rules.
• Use Cases (usage scenarios) — implement specific actions and operations.
• Interface Adapters — adapt data between external interfaces and internal layers.
• Infrastructure — work with databases, external APIs, file systems.

Example of package organization:

/pkg
  /domain
  /usecase
  /repository
  /delivery

This approach makes it easy to change implementation details (e.g., database or web framework) without affecting business logic.