[Registry] How do people know what content-type the messages will be?

[duglin]

We have a format property that will tell people that the message is a CloudEvent, but nothing in the Endpoint metadata to indicate whether it'll be xml, json, avro, ... or what the possible formats might be so people could specify that choice on the Subscribe() operation (if it supported it).

We should consider adding something to indicate the content-type(s) of the messages.

[clemensv]

"Content-type" is a message-format specific field that exists in all message format definitions either explicitly or implicitly. There is no hard correlation between the schema format and the media-type/content-type for a message.

What is "vnd.contoso.application/foobar"?

It's an app-level hint.

[github-actions]

This issue is stale because it has been open for 30 days with no
activity. Mark as fresh by updating e.g., adding the comment /remove-lifecycle stale.

[duglin]

Moved to: xregistry/spec#19