public async Task <IHttpActionResult> PostLocation()
        {
            DateTime                time = DateTime.Now;
            TrackersHandler         TH   = new TrackersHandler(db);
            TrackerLocationsHandler TLH  = new TrackerLocationsHandler(db);
            SpacesHandler           SH   = new SpacesHandler(db);
            KnnsHandler             KH   = new KnnsHandler(db);
            string resultString          = Request.Content.ReadAsStringAsync().Result.Trim();
            KeyValuePair <int, KeyValuePair <Guid, List <double> > > coordinates = LocationParser(resultString);
            Knn Knn = KH.GetKnn(coordinates.Value.Key);

            byte[]          options = Classify.ClassifyTemplate(coordinates.Value.Value, Knn);
            Tracker         tracker = TH.GetTracker(coordinates.Key);
            TrackerLocation loc     = new TrackerLocation(time, options, tracker);

            TLH.PostTrackerLocation(loc);
            return(Ok(Classify.ClassifyTemplate(coordinates.Value.Value, Knn)));
        }