Mark Norkin created BEAM-6168:
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Summary: Allow modification of JSON value before writing to
ElasticSearch
Key: BEAM-6168
URL: https://issues.apache.org/jira/browse/BEAM-6168
Project: Beam
Issue Type: Improvement
Components: io-java-elasticsearch
Reporter: Mark Norkin
Assignee: Etienne Chauchot
I have an Apache Beam streaming job which reads data from Kafka and writes to
ElasticSearch using ElasticSearchIO.
The issue I'm having is that messages in Kafka already have _{{key}}_ field,
and using {{ElasticSearchIO.Write.withIdFn()}} I'm mapping this field to
document _{{_id}}_ field in ElasticSearch.
Having a big volume of data I don't want the _{{key}}_ field to be also written
to ElasticSearch as a separate field and as part of _{{_source}}_.
Is there an option/workaround that would allow doing that?
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