Allow for key-only AVRO payloads

kwilcox · kwilcox · commit 0d4ba497f37f · 2016-12-12T15:50:39.000-05:00
https://github.com/confluentinc/confluent-kafka-python/blob/956ff94f090b19e60b057ec3eae6c6243deace05/confluent_kafka/src/confluent_kafka.c#L470 is only testing the value and returning 0 with no regards for the key. We need to check both the value and key here.
diff --git a/confluent_kafka/avro/__init__.py b/confluent_kafka/avro/__init__.py
@@ -143,7 +143,7 @@ def poll(self, timeout=None):
         """
         timeout = timeout or -1
         message = super(AvroConsumer, self).poll(timeout)
-        if not message:
+        if not message.value() and not message.key():
             return message
         if not message.error():
             if message.value() is not None:
