I read the article with interest [ Multiple Event Types in the Same Kafka Topic - Revisited ] I am trying to the set up a topic to handle multiple types safely as suggested using schema references. I was able to register the two schemas customer and product successfully and verified that the subjec…

You need to include an array of references with the POST body, for example see the “Example Request” here: Schema Registry API Reference | Confluent Documentation

Hi, Control Center does not yet support schema references. To register a schema with references, you can use the Schema Registry API Reference | Confluent Documentation or the Schema Registry Maven Plugin | Confluent Documentation . Also, one of the community members contributed a set of examples …

Thank you so much for a prompt response. I had used the API (via a python script) to register the subject and the initial reference schemas (directly from the avsc file) and that had worked fine. But switched to the console for the topic schema, which did not work as described above. We will try…

. @ryokota As suggested, I tried to register now the topic schema (as a union of references) directly using the API. curl -X POST -H “Content-Type: application/vnd.schemaregistry.v1+json” --data ‘{ “schema”: “[ "io.confluent.examples.avro.Customer", "io.confluent.examples.avro.Product"]…

Correction to my previous response… The way I registered the topic schema is actually this: curl -X POST -H "Content-Type: application/vnd.schemaregistry.v1+json" --data '{ "schema": "[ { \"name\": \"io.confluent.examples.avro.Customer\", \"subject\": \"customer\", \"version\": 1 }, …

Thank you for your suggestion. It worked. Just for the record, this is what I did. curl -X POST -H "Content-Type: application/vnd.schemaregistry.v1+json" --data @allTypes.json http://localhost:8081/subjects/all-types-value/versions {"id":4} and the text file allTypes.json looks like this: { …

Multiple Event types in same topic with unions

Schema Registry

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Multiple Event types in same topic with unions

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