Multiple topics in Kafka

[Alexandre Caeiro]

Hi all,

I've created 2 workflows each with it's own message start event. I've also created 2 topics in the application.properties file using the 'topics' keyword. However, when publishing to one topic, the other workflow is also triggered. Is there a way around this?

Thanks for the help

[Cristiano Nicolai]

Hi,

If you're using the cloudevents as payload and the kogito-cloudevents-quarkus-addon is added to the process, the message name in the bpmn start node should match the type attribute in the cloud event message. That way it could trigger one or the other.

That's from a high level perspective, maybe if you could share more details, including the application.properties or even a small reproducer project, that would be really helpful.

Thanks

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Best regards,

Cristiano Nicolai

[Alexandre Caeiro]

Hi,

The message name does match the type attribute. So let's say I send a message with type 'A' this triggers workflow with start event message 'A' but will also trigger an error in workflow 'B' because it doesn't recognize the object in the 'data' field of the cloudevent message (each workflow should receive a different data payload). To make this clearer:

Workflow A starts with message A which has a data field of type Foo.

Workflow B starts with message B which has a data field of type Bar.

When sending message A, this will trigger workflow A which performs correctly but it also throws an error from workflow B due to unrecognized fields and vice-versa.

Thank you.