C# / .NET Patterns

Project Structure

Solution Layout

MyApp.sln
Directory.Build.props              # Shared build properties
Directory.Packages.props           # Central package management
src/
  MyApp.Api/                       # ASP.NET Core host (Controllers, Middleware, Program.cs)
  MyApp.Application/               # Use cases, MediatR handlers, Behaviors
  MyApp.Domain/                    # Entities, value objects, domain events
  MyApp.Infrastructure/            # EF Core, external services
tests/
  MyApp.UnitTests/
  MyApp.IntegrationTests/