What is the difference between the repository pattern and the service pattern?

What is the difference between the repository pattern and the service pattern?

The repository pattern focuses on data access and encapsulates the logic needed to access data sources, while the service pattern provides business logic and operations that can use one or more repositories.

Can you give me an example of each pattern?

Sure! In the repository pattern, you might have a UserRepository that handles database operations for user data. In the service pattern, you could have a UserService that uses UserRepository to implement user-related business logic, like registration or authentication.

When should I use one pattern over the other?

Use the repository pattern when you need to abstract data access and manage data sources. Use the service pattern when you want to encapsulate business logic and operations that may involve multiple repositories.

Are there any downsides to using these patterns?

Yes, overusing these patterns can lead to unnecessary complexity. It's important to evaluate if they add value to your application architecture.