code: protected RouteGpsCoordinates findLastRouteCoordinates(String client) {
          Query lastRouteCoordinatesQuery = new Query().addCriteria(where("client").is(client)).with(new Sort(DESC, "_id")).limit(1);
          return mongoTemplate.findOne(lastRouteCoordinatesQuery, RouteGpsCoordinates.class, collectionName(RouteGpsCoordinates.class));
      }
docs: Callbacks