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https://issues.apache.org/jira/browse/NIFI-16190?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Daniel Stieglitz updated NIFI-16190:
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Status: Patch Available (was: In Progress)
> JSLTTransformJSON should support filtering out null results in JSON Lines mode
> ------------------------------------------------------------------------------
>
> Key: NIFI-16190
> URL: https://issues.apache.org/jira/browse/NIFI-16190
> Project: Apache NiFi
> Issue Type: Improvement
> Reporter: Jordan Sammut
> Assignee: Daniel Stieglitz
> Priority: Major
> Attachments: NIFI-16190 - Example Flow.txt,
> image-2026-10-08-09-10-44-943.png, image-2026-10-09-12-47-02-503.png
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> When using the *JSLTTransformJSON* processor with *JSON Lines* as the Input
> Format, there is currently no way to exclude individual lines when their JSLT
> transformation returns {{{}null{}}}.
> The *Transform Result Filter* appears to apply to fields within JSON objects
> rather than the root-level transformation result. As a result, records
> transformed to {{null}} are still written as literal {{null}} lines in the
> output.
> In the example flow below, we can see that any filtered out records are still
> written as null. Ideally, there is a way to filter these out without the use
> of another processor:
> [^NIFI-16190 - Example Flow.txt]
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