Matt Burgess created NIFI-8328:
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Summary: Pass FlowFile attributes to RestLookupService
Key: NIFI-8328
URL: https://issues.apache.org/jira/browse/NIFI-8328
Project: Apache NiFi
Issue Type: Improvement
Components: Extensions
Reporter: Matt Burgess
Currently RestLookupService's user-defined properties are used to define header
values for the REST call, but they are determined when the controller service
is enabled, and thus cannot use FlowFile attributes. This could be done when
the lookup is performed, thereby allowing FlowFile attributes in the header
property expressions.
Also the documentation is incorrect, it does not provide an Expression Language
Scope so defaults to "None", but evaluateAttributeExpressions() is called on
the user-defined properties. The documentation should match the behavior.
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