What are the best practices for using Data Transfer Objects (DTOs)?

What are the best practices for using Data Transfer Objects (DTOs) in my application?

Using DTOs can help streamline data transfer between layers. Best practices include keeping them simple, using them for serialization, and avoiding business logic.

Can you explain why it's important to keep DTOs simple?

Keeping DTOs simple ensures they are easy to understand and maintain. It also helps in reducing the overhead when transferring data.

Should I use DTOs for every data transfer?

Not necessarily. Use DTOs when you need to decouple layers or when transferring complex data structures. For simple cases, direct models may suffice.

What are some common mistakes to avoid when using DTOs?

Common mistakes include overloading DTOs with too much data, mixing them with business logic, and failing to version them properly.