Dependency injection (also known as DI) is a design pattern in which an object receives the objects it depends on rather than creating them directly. Dependency injection facilitates loose coupling and promotes testability and easy maintenance. It allows you to change your implementations without changing the classes or interfaces that leverage those implementations.
Support for dependency injection is included in ASP.NET Core. As a result, you can inject both framework and application services into your classes rather than depend on tightly coupled components.
