OwinWebApiTest/OwinWebApiTest/Providers/SimpleAuthorizationServerProvider.cs

using Microsoft.Owin.Security.OAuth;
using System.Security.Claims;
using System.Threading.Tasks;

namespace OwinWebApiTest.Providers
{
    public class SimpleAuthorizationServerProvider : OAuthAuthorizationServerProvider
    {
        public override async Task ValidateClientAuthentication(OAuthValidateClientAuthenticationContext context)
        {
            await Task.FromResult(context.Validated());
        }

        public override async Task GrantResourceOwnerCredentials(OAuthGrantResourceOwnerCredentialsContext context)
        {
            await Task.FromResult(context.Validated(new ClaimsIdentity(context.Options.AuthenticationType)));
        }

    }
}