A tutorial covering dependency injection in ASP.NET Core, demonstrating how to extract business logic from controllers into separate service classes. Covers creating class libraries for contracts and implementations, registering services with the built-in DI container using singleton lifetime, organizing registrations via IServiceCollection extension methods, and replacing the built-in container with Autofac to access advanced features like decorators.
Table of contents
Intro #Extracting logic from the controller #Using the builtin container #Using third party containers #Outro #22 Impressions