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https://issues.apache.org/jira/browse/NIFI-5887?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16753119#comment-16753119
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meh commented on NIFI-5887:
---------------------------
cool!
Regardless of the error display, the result was obtained correctly.
!Screenshot (93).png!
> JOLTTransformJSON advanced window JSON format validation should accept EL
> without double quote
> ----------------------------------------------------------------------------------------------
>
> Key: NIFI-5887
> URL: https://issues.apache.org/jira/browse/NIFI-5887
> Project: Apache NiFi
> Issue Type: Improvement
> Components: Extensions
> Affects Versions: 1.7.0
> Reporter: meh
> Priority: Major
> Labels: attribute, jolt, json
> Attachments: NIFI-5887_JOLT_with_JSON_attribute_value.xml, Screenshot
> (93).png
>
>
> JOLTTransformJSON advanced configuration window allows user to design a Jolt
> spec using NiFi EL. Also it does provide a feature to set FlowFile attributes
> to confirm conversion result for testing.
> However, the advanced window spec JSON format validation doesn't allow EL
> expression without double quote. Because of this, user can not try a JOLT
> spec using EL which references a FlowFile attribute having a valid JSON
> object. See details below.
> It would be more user friendly if the advanced window allows a Jolt spec even
> if it is not a valid JSON format. Probably adding a toggle switch to disable
> JSON validation might be a solution.
> ----
> i have a attribute (that produced by a REST service and catched by invokeHTTP
> processor) in JSON format like this:
> {code:java}
> test => {"key":"value"}{code}
> and then i want to put it in flows JSON content using JOLT processor, my
> content is something like this:
> {code:java}
> { "id": 123, "user": "foo" }{code}
> and my JOLT specification is this:
> {code:java}
> [{ "operation": "default", "spec": { "interest": "${test}" } }]{code}
> the problem is here that, in JOLT advanced window with test attribute nifi
> cannot put json object and shown this error:
> {quote}*"Error occurred during transformation"*
> {quote}
> and when run processor this detailed error is become alerted:
> {quote}*"unable to unmarshal json to an object"*
> {quote}
> ----
> my desired result is this:
> {code:java}
> { "id": 123, "user": "foo", "interest": {"key":"value"} }{code}
> is this a bug or am i wrong?
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