Remove _value in watcher output from REST call

Elastic Stack Kibana
1

I my watcher I collect a record from the rest interface, retrieve a nice Json. But in the index part of the watcher it adds _value to the index:

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This means all fields in the index get "_value." before there name.

Does anybody know how to remove the _value ?

KR Henk

2

You can tranform payload using a painless script
Refer to this link