--- a/hooks-queue.py	Wed Aug 24 19:37:29 2016 +0800
+++ b/hooks-queue.py	Wed Aug 24 19:46:24 2016 +0800
@@ -23,6 +23,12 @@
     def rconn(self):
         return self.application.rconn
 
+    def write_error(self, status_code, **kwargs):
+        result = self._reason
+        if 'exc_info' in kwargs:
+            result = getattr(kwargs['exc_info'][1], 'log_message', result)
+        self.finish({'result': result})
+
     def parse_json_payload(self):
         try:
             return json.loads(self.request.body)