service-logic

To enforce separation of concerns, encapsulate business rules within service layer implementations while keeping controllers thin to handle only HTTP concerns. This structure coordinates multi-step operations across components without mixing framework-specific logic into domain code.

The service layer pattern encapsulates business rules in dedicated services that coordinate complex workflows across multiple components. This approach isolates domain logic from API controllers, ensuring single responsibility per layer and avoiding framework-specific dependencies in core business code.

Structure your API backend by moving business logic into the service layer, which isolates complex workflows from HTTP controllers. These clear boundaries enforce single responsibility per layer, resulting in testable and maintainable service implementations that satisfy strict coding standards.

Yes, you can coordinate multi-step operations by encapsulating them in service layer implementations. Services manage complex workflows across multiple components while controllers remain thin HTTP handlers, satisfying requirements for testable services and clear separation of concerns.

Domain code contains framework-specific logic when business rules leak into controllers or infrastructure layers. Encapsulating business rules in the service layer enforces separation of concerns, ensuring single responsibility per layer and keeping framework dependencies out of domain code.

You should avoid moving pure HTTP request handling, response formatting, or basic input validation out of controllers. The service layer should specifically encapsulate complex business rules and multi-step workflow coordination, not basic web framework operations.