ASP.NET Core - Quick Reference Deep Knowledge : Use with technology: for comprehensive documentation. Program.cs Setup Controller Pattern Service Layer DTOs with Records Dependency Injection Lifetimes | Lifetime | Use For | |----------|---------| | | Lightweight, stateless services | | | Per-request services (repositories, DbContext) | | | Shared state, caches, configuration | Configuration Binding Global Exception Handling Anti-Patterns | Anti-Pattern | Why It's Bad | Correct Approach | |--------------|--------------|------------------| | Business logic in controllers | Violates SRP | Use se…