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https://issues.apache.org/jira/browse/NIFI-907?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14736997#comment-14736997
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Matt Gilman commented on NIFI-907:
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It would probably make sense to call out the standard FlowFile attributes as
the user would specify them in the application. For instance, so the user knows
that MIME Type is mime.type, Absolute Path is absolute.path, etc. These are
basically just the string values specified in the CoreAttributes enum.
> The expression language guide should talk about standard flowfile attributes
> ----------------------------------------------------------------------------
>
> Key: NIFI-907
> URL: https://issues.apache.org/jira/browse/NIFI-907
> Project: Apache NiFi
> Issue Type: Improvement
> Components: Documentation & Website
> Reporter: Joseph Witt
> Labels: beginner
> Fix For: 0.4.0
>
> Attachments: NIFI-907.patch
>
>
> The expression language should include a paragraph talking about standard
> flowfile attributes. There really are very few besides say filename, path,
> uuid. But these should be talked about. And the fact that this is about it
> is also good to point out. It would also be be beneficial to describe how a
> user can see what attributes were on a flowfile at a given point in the flow
> to aid the user in debugging and truly understanding the flow.
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