IApplicationBuilder does not contain a definition for UseWebApi

Question

The VS 2015 Update 3 is out and I have started playing with it. But I hit a problem soon after. The IApplicationBuilder interface does not appear to have a definition for the UseWebApi extension method, but IAppBuilder does. In effect, I want to register my Web Api with the OWIN pipeline. Am I missing something?

score 8 · Answer 1 · answered Aug 08 '17 at 18:37

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NuGet command:

Install-Package Microsoft.AspNet.WebApi.OwinSelfHost

Source

answered Aug 08 '17 at 18:37

Josh

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Yip this was what I needed in my framework project. – Ashley Kilgour Jan 04 '21 at 17:31
underrated answer. but I wonder why they don't include this in the owin core package. – Mark Dec 05 '22 at 15:29

score 1 · Answer 2 · answered Jul 19 '16 at 15:24

There is no need for the IApplicationBuilder interface to have a definition for the UseWebApi extension method. In IAppBuilder, it was used to register a Web Api with OWIN. But for IApplicationBuilder, because ASP.NET Core uses a unified model for both Web Api and MVC services, simply use the IApplicationBuilder.UseMvc method. It works!

score 0 · Answer 3 · answered Jul 03 '16 at 15:10

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There is no UseWebApi in Asp.NET Core so I am not sure what the "relevant package" is. Here is a tutorial showing how to build Web API with Asp.NET Core.

answered Jul 03 '16 at 15:10

Pawel

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Thanks Pawel. I have updated my question. I'm an ASP.NET Core newbie. – riccardo Jul 04 '16 at 13:30

IApplicationBuilder does not contain a definition for UseWebApi

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