What is a Scoped .NET Dependency, and Why You Should Use Them

Summary

In this technical discussion, James explores the concept of scoped dependency injection in .NET, focusing on how service lifetimes differ between Singleton, Transient, and Scoped configurations across web and application development scenarios. The presentation demonstrates through a Blazer server application how scoped services maintain state within a single request or user session, unlike Singleton (global) or Transient (always new) approaches. The key practical takeaway is understanding when and why to use scoped dependencies, particularly in web applications where maintaining request-specific state is crucial, with additional nuance for multi-window desktop and mobile development contexts.