DLT connector:

    @safe_and_metered_rpc_method(METRICS_POOL, LOGGER)

    def RecordService(self, request : DltServiceId, context : grpc.ServicerContext) -> Empty:

        context_client = ContextClient()

        service = context_client.GetService(request.service_id)

        dltgateway_client = DltGatewayClient()

        dlt_record_id = DltRecordId()

        dlt_record_id.domain_uuid.uuid = request.topology_id.topology_uuid.uuid

        dlt_record_id.type             = DltRecordTypeEnum.DLTRECORDTYPE_SERVICE

        dlt_record_id.record_uuid.uuid = service.service_id.service_uuid.uuid

        LOGGER.info('[RecordService] sent dlt_record_id = {:s}'.format(grpc_message_to_json_string(dlt_record_id)))

        dlt_record = dltgateway_client.GetFromDlt(dlt_record_id)

        LOGGER.info('[RecordService] recv dlt_record = {:s}'.format(grpc_message_to_json_string(dlt_record)))

        exists = record_exists(dlt_record)

        LOGGER.info('[RecordService] exists = {:s}'.format(str(exists)))

        dlt_record = DltRecord()

        dlt_record.record_id.CopyFrom(dlt_record_id)

        dlt_record.operation = \

            DltRecordOperationEnum.DLTRECORDOPERATION_UPDATE \

            if exists else \

            DltRecordOperationEnum.DLTRECORDOPERATION_ADD

        dlt_record.data_json = grpc_message_to_json_string(service)

        LOGGER.info('[RecordService] sent dlt_record = {:s}'.format(grpc_message_to_json_string(dlt_record)))

        dlt_record_status = dltgateway_client.RecordToDlt(dlt_record)

        LOGGER.info('[RecordService] recv dlt_record_status = {:s}'.format(grpc_message_to_json_string(dlt_record_status)))

        return Empty()

    @safe_and_metered_rpc_method(METRICS_POOL, LOGGER)