Hello Everyone, Is there a processor that we can use for updating/adding an attribute of an incoming flow file from some external service (say MongoDB or Couchbase or any RDBMS)? The processor will use the attribute of incoming flow file, query the external service, and simply modify/add an additional attribute of flow-file (without touching the flow file content).
If we have to achieve this kind of "lookup" operation (but only to update attribute and not the content), what are the options in NiFi? Should we create a custom processor (may be by taking GetMongo processor and modifying its code to update an attribute with query result)? Thanks, Manish
