title: Is it possible to read binary avro message with kafka REST proxy?
body: <p>I not completely understand how whole avro serialization ecosystem is built.</p>
  
  <p>Originally I imagined something like that:
  <a href="https://i.stack.imgur.com/eGupE.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/eGupE.png" alt="enter image description here"></a>
  However, I tried to post a binary avro message message to a topic and later read it using REST proxy and got an error: <code>{"error_code":50002,"message":"Kafka error: java.io.CharConversionException: Invalid UTF-32 character 0xa126572(above 10ffff)  at char #1, byte #7)"}</code>. </p>
  
  <p>Where am I wrong?</p>
  
  <p>If it matters, I used example from <a href="https://github.com/confluentinc/confluent-kafka-dotnet/tree/master/examples/AvroSpecific" rel="nofollow noreferrer">here</a> to write, and from <a href="https://github.com/confluentinc/kafka-rest" rel="nofollow noreferrer">here</a> to read.</p>