add

+
+# coding=utf-8
+"""" Simple SERVICE custom implementation
+
+http://localhost:8080/cgi-bin/qgis_mapserv.cgi?MAP=/qgis-server/projects/helloworld.qgs&SERVICE=CUSTOM
+
+.. note:: This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+"""
+
+__author__ = 'elpaso@itopen.it'
+__date__ = '2019-08-26'
+__copyright__ = 'Copyright 2019, ItOpen'
+
+from dmap_server import *
+
+class CustomServiceService(DmpService):
+
+    def __init__(self):
+        DmpService.__init__(self)
+
+    def name(self):
+        return "CUSTOM"
+
+    def version(self):
+        return "1.0.0"
+
+    def allow_method(self):
+        return True
+
+    def execute_request(self, request, response):
+        response.status_code = 200
+        response.write("Custom service executeRequest")
+    
+class CustomService():
+
+    def __init__(self, serverIface):
+        self.serv = CustomServiceService()
+        serverIface.service_registry().register_service(CustomServiceService())
+