ASP.NET Core 8 Project Structure Best Practices

A clear project structure makes team collaboration smoother. Here are the structural conventions I have accumulated across multiple production projects:

Layering principles

Controllers only handle parameter validation and view assembly; business logic goes to Services; data access goes through repositories or DbContext.

Directory layout

• Controllers - Request entry points
• Models - Entities and view models
• Data - DbContext and seed data
• Services - Business logic
• Views - Razor views

Stick to single responsibility; each file does one thing, and the code naturally becomes maintainable.