Peter Kimberley created NIFI-12304:
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Summary: Document ListenHTTP content unpack behaviour
Key: NIFI-12304
URL: https://issues.apache.org/jira/browse/NIFI-12304
Project: Apache NiFi
Issue Type: Improvement
Components: Documentation & Website
Affects Versions: 1.23.2
Reporter: Peter Kimberley
{{ListenHTTP}} depending on the MIME type, will unpack received content
automatically. For example, if using {{InvokeHTTP}} with a flowfile packed in
{{FlowFile Stream v3}} format, with the {{mime.type}} attribute set to
{{application/flowfile-v3}}.
When {{ListenHTTP}} receives the payload, it will interpret the MIME type and
if it matches a well-known value (i.e. {{application/flowfile-v3}}), the
content will automatically be unpacked by this processor.
While that's a handy feature, it is potentially confusing as this inline
unpacking behaviour isn't documented, and a reasonable expectation is that one
needs to {{UnpackContent}} separately in a subsequent processor.
Recommend adding some use case documentation to {{ListenHTTP}}, to avoid
confusion.
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