Using Business Logic Classes in C# with .NET MAUI

Question

What are the best practices for creating business logic classes in C# for a bank application? Specifically, how do business logic classes interact with data access classes, and how can expression-bodied members be utilized in this context?

Answer 1

The business logic, database logic and UI should be loosely coupled. You should use the adapter pattern for the business logic to interact with data access layer and the UI. Your layers should expose interfaces. I away create explicit request / response models for each layer.

https://www.dofactory.com/net/adapter-design-pattern

you also might be interest in the orchestration, Choreography, or saga patterns to manage the interactions.

https://jamiemaguire.net/index.php/2017/05/06/simplify-your-architecture-using-the-orchestrator-pattern/

https://microservices.io/patterns/data/saga.html

https://learn.microsoft.com/en-us/azure/architecture/patterns/choreography