public async Task ServiceProviderServiceCallTest() { var serverBuilder = new RpcServiceDefinitionsBuilder(); serverBuilder.RegisterService <IServiceProviderService>() .RegisterService <ISimpleService>(); var host = new GrpcServer(serverBuilder, null, this.options); host.AddEndPoint(CreateEndPoint()); host.Start(); try { var serviceImpl = new ServiceProviderServiceImpl(host.ServicePublisher); using (var publishScope = host.PublishSingleton <IServiceProviderService>(serviceImpl)) { var connection = this.CreateGrpcConnection(); var clientService = connection.GetServiceSingleton <IServiceProviderServiceClient>(); var serviceRef = await clientService.GetSimpleServiceAsync(); var simpleService = connection.GetServiceInstance(serviceRef); int res = await simpleService.AddAsync(8, 9); Assert.AreEqual(8 + 9, res); } } finally { await host.ShutdownAsync(); } }