Elias Levy created FLINK-10117:
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Summary: REST API for Queryable State
Key: FLINK-10117
URL: https://issues.apache.org/jira/browse/FLINK-10117
Project: Flink
Issue Type: Improvement
Components: Queryable State, REST
Affects Versions: 1.6.0
Reporter: Elias Levy
At the moment, queryable state requires a JVM based client that can make use of
the Java queryable state client API in flink-queryable-state-client artifact.
In addition, the client requires a state descriptor matching the queried state,
which tightly couples the Flink job and query state clients.
I propose that queryable state become accessible via a REST API. FLINK-7040
mentions this possibility, but does not specify work towards that goal.
I suggest that to enable queryable state over REST, users define JSON
serializers via the state descriptors.
This would allow queryable state clients to be developed in any language, not
require them to use a Flink client library, and permit them to be loosely
coupled with the job, as they could generically parse the returned JSON.
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