public override Task <NotificationResponse> ProductionStepsChanged(ProductionStepsChangedRequest request, ServerCallContext context)
        {
            foreach (var workstationProductionSteps in request.WorkstationsProductionSteps)
            {
                var productionSteps = new List <ChangedProductionStep>();
                foreach (var step in workstationProductionSteps.ProductionSteps)
                {
                    var productionStep = new ChangedProductionStep {
                        Id = new Guid(step.Id), State = step.StepStatus()
                    };
                    productionSteps.Add(productionStep);
                }

                if (NotificationHub.Connections.TryGetValue(workstationProductionSteps.WorkstationId.ToLower(), out var connectionId))
                {
                    _hubContext.Clients.Client(connectionId).SendProductionStepChanged(productionSteps);
                }
            }
            var response = new NotificationResponse {
                Result = NotificationResult.Success
            };

            return(Task.FromResult(response));
        }