junior.NET Core
What is Program.cs in .NET Core?
Updated Apr 28, 2026
Short answer
Program.cs is the entry point of the application.
Deep explanation
It configures the host, services, middleware pipeline, and starts the application using the minimal hosting model.
Real-world example
Setting up middleware and endpoints in a web API.
Common mistakes
- Adding business logic inside Program.cs.
Follow-up questions
- What is WebApplicationBuilder?
- What does app.Run() do?