public ActionResult GetRealEstate([FromQuery] string NatbuildNo, [FromQuery] string RoomId)
        {
            MappingService mapping    = new MappingService();
            var            mappingObj = mapping.GetOne(NatbuildNo, RoomId);

            if (mappingObj.RealEstateNo == null)
            {
                return(Ok(new BuildingResources()));
            }

            QueryParameter queryParameter = new QueryParameter()
            {
                EstateNo = mappingObj.RealEstateNo
            };
            var building = BuildingService.GetOneRealEstate(queryParameter);

            if (building == null)
            {
                return(NotFound());
            }
            else
            {
                return(Ok(building));
            }
        }