HttpContext.Features vs HttpContext.Items In Asp.Net Core

Question

What is the differences between these two Properties?

I can use HttpContext.Items instead of HttpContext.Features to share data

Answer 1

HttpContext.Items is designed to share short-lived per-request data, as you mentioned.

HttpContext.Features is designed to share various HTTP features that allow middleware to create or modify the application's hosting pipeline. It's already filled with several features from .NET, such as IHttpSendFileFeature.

You should use HttpContext.Items to store data, and HttpContext.Features to add any new HTTP features that another middleware class might need.