change contract apis response

core/apps/shared/utils/response.py

@@ -0,0 +1,13 @@
+from rest_framework.response import Response
+
+def success_message(msg, status_code):
+    return Response(
+        {'success': True, 'message': msg},
+        status=status_code,
+    )
+
+def error_message(msg, status_code):
+    return Response(
+        {'success': False, 'message': msg},
+        status=status_code,
+    )