Avoid raising an Exception when parsing a None reader_schema_obj

ffissore · edenhill · commit 69b04b50e134 · 2022-01-24T12:21:29.000+01:00
diff --git a/src/confluent_kafka/avro/serializer/message_serializer.py b/src/confluent_kafka/avro/serializer/message_serializer.py
@@ -177,7 +177,10 @@ def _get_decoder_func(self, schema_id, payload, is_key=False):
             # try to use fast avro
             try:
                 fast_avro_writer_schema = parse_schema(json.loads(str(writer_schema_obj)))
-                fast_avro_reader_schema = parse_schema(json.loads(str(reader_schema_obj)))
+                if reader_schema_obj is not None:
+                    fast_avro_reader_schema = parse_schema(json.loads(str(reader_schema_obj)))
+                else:
+                    fast_avro_reader_schema = None
                 schemaless_reader(payload, fast_avro_writer_schema)
 
                 # If we reach this point, this means we have fastavro and it can
