private void RemoveAllSubscriberTopicsByIDRequest()
        {
            Post("/removeAllSubscriberActiveTopics", param =>
            {
                var publisherIDString = GetQueryValueFromKey("id");

                int publisherID;
                if (int.TryParse(publisherIDString, out publisherID))
                {
                    if (Broker.RemoveAllTopicsOwnedBySubscriber(publisherID))
                    {
                        return(GetSuccessJSONMessage($"All topics owned by publisher {publisherID} successfully removed"));
                    }

                    return(GetFailureJSONMessage(
                               $"Topics owned by publisher {publisherID} could not be removed. (Perhaps invalid ID?)"));
                }

                return(GetFailureJSONMessage("Publisher ID entered is not a valid integer"));
            });
        }