--- /dev/null
+/*
+==================================================================================
+ Copyright (c) 2019 AT&T Intellectual Property.
+ Copyright (c) 2019 Nokia
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+==================================================================================
+*/
+
+#ifndef HELPER_H
+#define HELPER_H
+
+#include <sysrepo.h>
+
+sr_val_t *get_val(sr_val_t *val, size_t i);
+
+int module_change_cb(sr_session_ctx_t *session, const char *module_name, const char *xpath, sr_event_t event, uint32_t request_id, void *private_data);
+
+char * yang_data_sr2json(sr_session_ctx_t *session, const char *module_name, sr_event_t event, sr_change_oper_t *operation);
+
+char * get_data_json(sr_session_ctx_t *session, const char *module_name);
+
+#endif