public async Task <IHttpActionResult> PutOrientation()
        {
            Heading newHeading                    = JsonConvert.DeserializeObject <Heading>(Request.Content.ReadAsStringAsync().Result);
            TrackerOrientationsHandler TOH        = new TrackerOrientationsHandler(db);
            TrackersHandler            TH         = new TrackersHandler(db);
            Tracker            tracker            = TH.GetTracker(newHeading.ID);
            TrackerOrientation trackerOrientation = new TrackerOrientation(DateTime.Now, tracker, newHeading.Orientation);

            TOH.PutOrientation(trackerOrientation);
            return(Ok());
        }