Hands-On RESTful Web Services with ASP.NET Core 3

Benefits of dependency injection

Dependency injection is described as follows:

"A set of software design patterns that enable us to develop a loosely coupled code."

The objective of dependency injection is to implement a loosely coupled code and, as a consequence, write maintainable code. In the book, Dependency Injection in .NET, Mark Seemann describes a bright, real-life example of a loosely coupled code. He compares tightly coupled code with cheap hotel hairdryers: some hostels, hotels, and locker rooms bind their hairdryers directly on the wall without a plug to stop guests from stealing them. If the hairdryer stops working, the owner has to cut the power and call a technician, who has to disconnect the hairdryer and replace it with a ...