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https://issues.apache.org/jira/browse/NIFI-1660?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15319069#comment-15319069
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Christopher McDermott commented on NIFI-1660:
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I've created a second pull request for 0.x
> Enhance the expression language with jsonPath function
> ------------------------------------------------------
>
> Key: NIFI-1660
> URL: https://issues.apache.org/jira/browse/NIFI-1660
> Project: Apache NiFi
> Issue Type: Improvement
> Components: Core Framework
> Affects Versions: 0.5.1
> Reporter: Christopher McDermott
> Assignee: Joseph Witt
> Priority: Minor
> Fix For: 1.0.0, 0.7.0
>
>
> jsonPath would evaluate a JSON path provided, as an argument, against the
> subject.
> Example
> {quote}
> $\{kafka.key:jsonPath('$.foo.bar')\}
> {quote}
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