use-case-organization

Standardize CQRS use case organization by grouping Command.cs, Query.cs, Handler.cs, Validator.cs, and Response.cs files under a UseCases/<CaseName>/ directory. This enforces consistent naming prefixes and uniform separation of concerns across the .NET application layer.

The standard CQRS folder structure uses UseCases/<CaseName>/ to group Command.cs, Query.cs, Handler.cs, Validator.cs, and Response.cs. This layout ensures shared naming prefixes for easy discovery and maintains uniform separation of concerns across the codebase.

Separate concerns in clean architecture by isolating responsibilities: Handler.cs executes business logic, Validator.cs enforces rules, and Command.cs or Query.cs defines inputs. A consistency checklist verifies this structural separation and uniform responsibilities across files.

Yes, this CQRS use case structure works with existing .NET C# projects by guiding the refactoring of current UseCases, Handlers, and Validators. It applies standardized folder layouts and naming conventions without requiring external dependencies.

The best way to name files in a MediatR use case folder is to use shared prefixes matching the parent case name, producing files like <Name>Command.cs, <Name>Query.cs, and <Name>Handler.cs. This ensures alignment and easy discovery across the codebase.

CQRS use case structure lacks consistency due to mismatched folder and file names or unclear separation of concerns. Applying a standardized layout with a verification checklist for UseCases, Handlers, and Validators eliminates structural misalignment.