Why is there both a System.Net.Http and System.Web.Http namespace?

Question

Just a simple question as I\'m studying the various class libraries available in .NET. I noticed that there\'s a System.Net.Http namespace and a System.Web.H

Answer 1

From my experience, the separation between the two namespaces becomes clear when you look at the difference between self hosted webapi services vs IIS-hosted. Self hosted only requires System.Http, whilst IIS hosted needs both. See Difference between "MapHttpRoute" and "MapRoute"? for a similar discussion and useful links.

So, the reason there are two is so that you can create a self-hosted web service that doesn't depend on the entire ASP.NET stack.

Neither of them are deprecated.

I haven't seen an official Microsoft explanation for this, but that's the best I've been able to find.