Rob Fellows created NIFI-14873:
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Summary: Support unquoted parameter references with spaces in
their names within expression language
Key: NIFI-14873
URL: https://issues.apache.org/jira/browse/NIFI-14873
Project: Apache NiFi
Issue Type: Improvement
Components: Core Framework
Reporter: Rob Fellows
Assignee: Rob Fellows
Attachments: Screenshot 2025-08-18 at 12.11.38.png,
image-2025-08-18-12-13-23-099.png
There is a discrepancy between how parameters are referenced when on their own
versus when included as part of expression language.
If you have a parameter named "Date Format", if you just reference it on its
own, you can just reference it as {{{}#\{Date Format}{}}}. No need to quote it.
However, to reference that same parameter from within an expression
{{${now():format(#\{Date Format})}}}
you need to quote it for it to be parsed properly. If you don't quote it, the
processor will be invalid with this displayed:
!image-2025-08-18-12-13-23-099.png|width=573,height=131!
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