Avro is cool!

But lots of people use JSON. JSON Schema allows folks to use JSON with a strictly defined schema. Wouldn't it be nice if schema-registry (and Kafka REST Proxy) supported JSON Schema?

JSON Schema wouldn't be as good as Avro, as there is no schema evolution feature. However, it would be nice if one could produce JSON to Kafka REST Proxy and be sure that the data matched a registered schema. Thoughts? How hard would this be?