Oleksandr Shpak created NIFI-14687:
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Summary: New processor to modify frow file content in JSON format
Key: NIFI-14687
URL: https://issues.apache.org/jira/browse/NIFI-14687
Project: Apache NiFi
Issue Type: Wish
Components: Extensions
Affects Versions: 2.4.0
Reporter: Oleksandr Shpak
Fix For: 2.4.0
h2. Use case
In case when user need to modify JSON flow file content and set the new values
of some keys using attribute values, currently it's possible with external
scripts or complex schemas only.
Example. NiFi calls external API, get the result in JSON format. Then calls
another API endpoint to get the recent object status. After that the recent
status should be set to the specific key (by path) in the original response.
h2. Processor requirements
* Processor should modify JSON content only
* User can define one or more attribute names which values will be used to
update the flow file content
* For every attribute name user should set the path in JSONPath format
* Processor should accept the next additional parameter:
** Processing behavior:
*** Ignore empty or unset attribute values.
*** Assign null value if attribute value is empty or not set
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