Hello Devs, I discovered Apache NiFi several days ago, parsed through all the docs and would like to ask for your opinion on my use-case. I plan to have several custom processors to do HTTP POSTs to a 3rd party ticketing system via its REST API based on the Flowfiles fed by other processors. In order to compose JSON payload messages and POST to this ticketing system, in addition to the FlowFiles, these custom processors require metadata info from the ticketing system. The metadata may or may not change over time, as it is potentially configurable by the ticketing system admins. I am wondering whether I should create a custom Controller service to pull the metadata and make it available to all interested processors? Can I include a Runnable task in the Controller service and have a configurable parameter of how often to pull the data?
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