question expression language not working in nifi update attribute in Support Questions

expression language not working in nifi update attribute

Rohit1997jio — Wed, 15 Nov 2023 10:08:55 GMT

iam trying to publish data into multiple kafka topics with some conditions but instead of returning value of the expression , whole value passed for the property is coming.

customerTopic should return me the value of the expression but its returning the expression itself

attaching the images of the flow.

Re: expression language not working in nifi update attribute

Faerballert — Wed, 15 Nov 2023 13:38:04 GMT

Try that value:

${kafka.topic:contains('alerts'):ifElse('customerTopicKafkaTesting1',${kafka.topic:contains('events'):ifElse('customerTopicKafkaTesting2',${kafka.topic:contains('ack'):ifElse('customerTopicKafkaTesting3','Not_Found')})})}

You forgot to close ${kafka.topic:contains('events')...}