OWIN WebApi project on IIS 10 gives 404 on all operations

Question

I have a OWIN WebAPI project which works in the OwinSelfHost, but always results in 404 when hosted on IIS 10, the only thing that works is the initial page public/index.html. I

Answer 1

You have to add OwinHttpHandler to your pipeline:

<handlers>
       <add name="Owin" verb="*" path="*" type="Microsoft.Owin.Host.SystemWeb.OwinHttpHandler, Microsoft.Owin.Host.SystemWeb" />
 </handlers>