Status

Current state: Under Discussion

Discussion thread: thread here

JIRA: 

Please keep the discussion on the mailing list rather than commenting on the wiki (wiki discussions get unwieldy fast).

Motivation

When creating a topic a user may want to know what the broker defaults will be for their topic before creating it.

 Proposed Changes

We propose allowing `name=null` for a `ConfigResource` with `type=TOPIC`. This will allow us to get the default topic configs from the broker through an already existing path.

Compatibility, Deprecation, and Migration Plan

Rejected Alternatives

• New AdminClient Method. This would expand the surface area of AdminClient and the Protocol with benefit of being more explicit.

• Return config information from AdminClient.createTopics(validate=true). This would piggyback on a common user pattern of (come up with possible configs, validate, repeat), but would require much larger changes to the protocol since `createTopics` returns void now.