Book Review: Dependency Injection in .NET

This isn't so much a review as just a note that I read Dependency Injection in .NET by Mark Seemann and found it pretty helpful in clearing up some of my confusions about dependency injection frameworks.

I already was aware of the basics of constructor injection, but was experiencing some pain around problems like constructor over-injection and lots of 1-1 mapping between interfaces and implementations. This book explores ways to fix these issues and many others.

Here are some topics the book covered that I really appreciated:

• DI patterns, including the different types of injection, and Ambient Context
• DI antipatterns, including Service Locator
• DI refactorings, including Abstract Factory and dealing with cyclic dependencies
• Object composition, including implementing the composition root for common types of .NET applications
• Interception

I particularly liked the way the Interception chapter went over Decorators and how to configure them, and then moved into how to implement and configure interception.