سلام چگونه میتونم در web api کاربر را احراز هویت کنم من از claaim استفاده کردم اما انجام نمی شود

   var identity = new ClaimsIdentity(context.Options.AuthenticationType);

   identity.AddClaim(new Claim(ClaimTypes.Role, "user"));




                identity.AddClaim(new Claim("username", getUser.RealUserName));
                identity.AddClaim(new Claim(ClaimTypes.NameIdentifier, getUser.RealUserName));

                identity.AddClaim(new Claim(ClaimTypes.Name, getUser.LastName));

                var m = context.Validated(identity);

  public class Startup
    {
        public void Configuration(IAppBuilder app)
        {
            app.UseCors(Microsoft.Owin.Cors.CorsOptions.AllowAll);
                var myProvider = new HphAuthorization();

                OAuthAuthorizationServerOptions options = new OAuthAuthorizationServerOptions
                {

                    AllowInsecureHttp = true,

                    TokenEndpointPath = new PathString("/m/token"),

                    AccessTokenExpireTimeSpan = TimeSpan.FromDays(1),

                    Provider = myProvider,
                    AuthenticationMode = Microsoft.Owin.Security.AuthenticationMode.Active,
              

                };

                app.UseOAuthAuthorizationServer(options);
                app.UseOAuthBearerAuthentication(new OAuthBearerAuthenticationOptions());
               app.UseOAuthBearerTokens(options);
                HttpConfiguration config = new HttpConfiguration();
                WebApiConfig.Register(config);
           
        }       
  
    }

             var testServer = TestServer.Create<Startup>();
            var requestParams = new List<KeyValuePair<string, string>>
                {
        new KeyValuePair<string, string>("grant_type", "password"),
        new KeyValuePair<string, string>("username", username ),
        new KeyValuePair<string, string>("password",password)
                };
            var requestParamsFormUrlEncoded = new FormUrlEncodedContent(requestParams);          
            var tokenServiceResponse = await  testServer.HttpClient.PostAsync(
                "/m/token", requestParamsFormUrlEncoded);
         
            var identity = (ClaimsPrincipal)System.Threading.Thread.CurrentPrincipal;
            var claims = identity.Claims;