JSON Serialization Improvements for GELFRabbitHandler

graypy/handler.py

@@ -287,8 +287,19 @@ def smarter_repr(obj):
     """Convert JSON incompatible object to string"""
     if isinstance(obj, datetime.datetime):
         return obj.isoformat()
+
     return repr(obj)
 
+def introspective_repr(obj):
+    """ introspective repr() - alternative to smarter_repr() """
+
+    if isinstance(obj, datetime.datetime):
+        return obj.isoformat()
+
+    if isinstance(obj, enum.Enum):
+        return repr({obj.name: obj.value})
+
+    return repr(dir(obj))
 
 def message_to_pickle(obj):
     """Convert object to a JSON-encoded string"""

graypy/rabbitmq.py

@@ -5,6 +5,7 @@
 handler"""
 
 import json
+from graypy.handler import make_message_dict, introspective_repr
 from logging import Filter
 from logging.handlers import SocketHandler
 
@@ -85,7 +86,11 @@ def makePickle(self, record):
             self.localname,
             self.facility
         )
-        return json.dumps(message_dict)
+
+        try:
+            return json.dumps(message_dict)
+        except TypeError:
+            return json.dumps(message_dict, default=introspective_repr)
 
 
 class RabbitSocket(object):