diff --git a/http-delete/main.c b/http-delete/main.c
index b522d2f..5d51b7c 100644
--- a/http-delete/main.c
+++ b/http-delete/main.c
@@ -401,10 +401,111 @@ int callback_get_entities (const struct _u_request * request, struct _u_response
   return U_CALLBACK_CONTINUE;
 }
 
+int delete_entity (const PGconn * conn,const char * query,const char *value;){
+  /*declarations*/
+  int res;
+  PGresult *pqRes;
+  char *prepStmEntities;
+  /*define prepared statement*/
+  len=snprintf(NULL,0,query,value);
+  prepStmEntities=malloc((size_t)(len+1));
+  //TODO Release prepStmEntities!
+  snprintf(prepStmEntities,(size_t)(len+1),query,value);
+  printf("delete_entity() prepStmEntities: %s\n",prepStmEntities);
+  /*create prepared statement*/
+  /*conn:connection*/
+  /*stm:statement*/
+  /*0:number of passed parameters*/
+  /*NULL: server figures out parameter type*/
+  /*paramValues:pointer of an array of strings containing parameters*/
+  /*NULL:relevant for binary parameters*/
+  /*NULL:relevant for binary parameters*/
+  /*0:obtain result in text format*/
+  //TODO How to pass params?
+  pqRes = PQexecParams(conn, prepStmEntities, 0, NULL, NULL, NULL, NULL, 0);
+  if(PQresultStatus(pqRes) != PGRES_TUPLES_OK) {
+    /*handle error*/
+    printf("delete_entity() No data retrieved\n");
+    /*clean up result*/
+    PQclear(pqRes);
+    res=1;
+  }else{
+    /*evaluate result*/
+    nbRecords = PQntuples(pqRes);
+    printf("callback_delete_entity() nbRecords: %d\n",nbRecords);
+    /*clean up result*/
+    PQclear(pqRes);
+    res=0;
+  }
+  return res;
+};
+
 /**
  * Callback function to delete a particular entity
  */
 int callback_delete_entity (const struct _u_request * request, struct _u_response * response, void * user_data) {
+  /*declarations*/
+  char *url_params;
+  char *response_body;
+  int r;
+  const char **keys;
+  const char *value;
+  char *line;
+  int len;
+  int i;
+  PGconn *conn;
+  int nbRecords,nbFields;
+  json_t *arrayRecords, *arrayFields,  *stringField;
+
+  printf("callback_delete_entity()  Started...\n");
+  url_params = print_map(request->map_url);
+  r=asprintf(
+	     &response_body,
+	     "parameters from the url are \n%s\n\n",
+	     url_params);
+  //printf("callback_delete_entity() %d characters generated\n",r);
+
+  if(request->map_url != NULL){
+    keys=u_map_enum_keys(request->map_url);
+    if(keys[0] == NULL){
+      //TODO error
+      printf("callback_delete_entity() param NOT available\n");
+      //TODO Why this casting?
+      (void)(request);
+      (void)(user_data);
+      ulfius_set_string_body_response(response, 500, "This is the /entity/:id/delete route: Param error!");
+    }else{
+      value = u_map_get(request->map_url, keys[0]);
+      printf("callback_delete_entity() key is %s, value is %s\n", keys[0], value);
+
+      conn = (PGconn *)user_data;
+
+      //TODO delete from relation
+      int delRes=delete_entity (conn,"DELETE FROM relations WHERE from_entity=1 RETURNING *;");
+      if(delRes!=0){
+	//TODO Why this casting?
+	(void)(request);
+	(void)(user_data);
+	ulfius_set_string_body_response(response, 500, "This is the /entity/:id/delete route: Dba from_entity error!");
+      }
+      //TODO delete to relation
+      delRes=delete_entity (conn,"DELETE FROM relations WHERE to_entity=1 RETURNING *;");
+      //TODO delete entity
+      delRes=delete_entity (conn,"DELETE FROM entities WHERE id=1 RETURNING *;");
+      /*set response body*/
+      ulfius_set_json_body_response(response, 200, arrayRecords);
+      /*clean up JSON*/
+      json_decref(arrayRecords);
+      //TODO Why this casting?
+      (void)(request);
+      (void)(user_data);
+    }
+  }
+  /*clean up remainings*/
+  free(url_params);
+  free(response_body);
+  printf("callback_delete_entity() Done.\n");
+  return U_CALLBACK_CONTINUE;
 };
 
 /**