Hello Chris, The EvaluateJsonPath processor has the property "Destination" which gives you the option to send it either to the FlowFile content or a FlowFile attribute. Selecting "flowfile-attribute" will place the value in the "kafka.key" attribute of the FlowFile. You can find documentation for EvaluateJsonPath here[1].
[1] https://nifi.apache.org/docs/nifi-docs/components/org.apache.nifi.processors.standard.EvaluateJsonPath/index.html Hope your NiFi use is going well, Joe - - - - - - Joseph Percivall linkedin.com/in/Percivall e: joeperciv...@yahoo.com On Monday, March 21, 2016 1:34 PM, "McDermott, Chris Kevin (MSDU - STaTS/StorefrontRemote)" <chris.mcderm...@hpe.com> wrote: What I need to do is read a file from Kafka. The Kafka key contains a JSON string which I need to turn in FlowFile attributes while preserving the original FlowFile content. Obviously I can use EvaluteJsonPath but that necessitates replacing the FlowFile content with the kaka.key attribute, thus loosing the original FlowFile content. I feel like I’m missing something fundamental.
