Execution Listeners Executed by External Services

[mjyan]

Recently we are building a python service to execute service task in our workflows externally utilizing the external task mechanism which works well for us.

At the same time, we would also like the python service to also handle the logic for the execution listeners that we would like to add. However, after reading the documentations here and searching in the forum, I could not find information regarding how the execution listeners can be executed in an external service.

Therefore, I was wondering if there are any recommendations regarding the use case. Would it be good to let an external service to execute the execution listeners and if it is, are there any ways for us to achieve that? Thanks!!

[aravindhrs]

@mjyan refer the below post.

Can we execute external task on task lifecycle events

Well in one Project where we needed a Listener as an external Taks worker, we used a Scrip in the task listener to basically set a variable. Then we used in BPMN an event subprocess with a non interrupting conditional event that was triggered once the variable was set. This was followed by a service task which we implemented as external worker and was the main listener… something similar like this example.bpmn (4.2 KB) Of course your model might get a little bit more unstructured… Depending on …

[StephenOTT]

@mjyan: When you create your external task mechanism, you could just create a “lambda” style api: Have a Java Delegate that calls your api to execute a synchronous action. Listeners are synchronous and ordered, so you can recreate similar functionality.