What are common mistakes in service layer design?

What are some common mistakes people make when designing a service layer?

Some common mistakes include not separating concerns, overloading the service layer with business logic, and ignoring error handling.

Can you explain why separating concerns is important?

Separating concerns helps maintain code clarity, makes testing easier, and allows for better scalability and maintainability.

What about error handling? Why is it often overlooked?

Error handling is often overlooked because developers focus on happy paths. However, robust error handling is crucial for user experience and system reliability.

How can I improve my service layer design?

You can improve your design by following best practices like using DTOs, implementing proper logging, and ensuring clear API contracts.