https://www.linkedin.com/learning/asp-dot-net-core-in-dot-net-6-dependency-injection

If you’re a .NET developer or looking to enter the field, it’s essential to have a working understanding of dependency injection, a software development design pattern that allows for having objects that are not dependent on each other. In this course, .NET C# programmer David Grace provides an introduction to dependency injection, from configuration to implementation. He also talks through the advantages of DI and why you should use it. David shows how to implement dependency injection into a real-life example using an ASP.NET Core app, and details the use methods within it. He also looks at the common errors when using dependency injection and how to resolve them.