Good Morning NiFi Team,
I am trying to formulate a REST PUT in the payload of a flowfile using
ReplaceText 1.16.3, but I need for one of my expressions to not be
evaluated.
Given the following:
------------------------------------------------------------
{
"component": {
"id": "92da314e-b519-1ff1-0000-00003c0e6b52",
"name": "RouteOnAttribute",
"config": {
"concurrentlySchedulableTaskCount": "1",
"schedulingPeriod": "0 sec",
"executionNode": "ALL",
"penaltyDuration": "30 sec",
"yieldDuration": "1 sec",
"bulletinLevel": "WARN",
"schedulingStrategy": "TIMER_DRIVEN",
"comments": "",
"runDurationMillis": 0,
"autoTerminatedRelationships": [
"A_RELATIONSHIP",
"foo",
"unmatched"
],
"retriedRelationships": [],
"properties": {
"foo": "${stream_set:equals('foo')}"
}
},
"state": "STOPPED"
},
"revision": ${processor_revision_version},
"disconnectedNodeAcknowledged": false
}
------------------------------------------------------------
I need for:
"foo": "${stream_set:equals('foo')}"
to not be evaluated as that is the value I am trying to insert into the
processor. After some research, I came across
https://docs.cloudera.com/cfm/2.1.3/nifi-express-guide/topics/nifi-expression-language-guide-escaping.html
and discovered that I should be able to add a $ in front of the expression
and yield the results I am hoping for, however, all I end up with in the
payload after trying that is:
"foo": "$${stream_set:equals('foo')}"
I have also tried a number of escaping techniques such as backslash to no
avail. Any suggestions you can offer are greatly appreciated.
Thanks!
Paul
