Cancel/terminate a human task via REST

[dirkw65]

Hi,

is there any way to cancel/terminate a human task via the REST-API? And if not, is there any way to even programmatically do that?

The use case is the following: Camunda human tasks get transferred to another system. If a camunda task is cancelled/terminated the external system will be notified and the corresponding task in the external system will also be cancelled/terminated.

Now we also want to mirror a possible cancel/terminate action from the external system to camunda. For all other actions like complete/claim/cancel claim we used the REST-API so far, but I couldn’t find an option for cancelling/terminating a task.

Bets regards,

Dirk

[aravindhrs]

@dirkw65 Adding boundary events (interrupting) to the user task can solve this.

Updating the task variable:

Put Task Variable | docs.camunda.org

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Once timer lapses will trigger the event:

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Correlate a message with message name:

Correlate a Message | docs.camunda.org

[dirkw65]

@aravindhrs Thanks, but is this possible via REST?

[aravindhrs]

Check the above example (updated)

[dirkw65]

@aravindhrs thanks so far. So these are 3 different options to get a task to cancel, with the first and last via REST, correct?

Would it e possible for you to post an example put request body that actually creates such a boundary event/task variable?

Especially the boundary event part is confusing to me. Considering it is a normal user task with no configured boundary event, is it really possible to add such a boundary event for an already modeled process with a task variable?

[dirkw65]

@aravindhrs i made this picture to maybe make it clearer what we actually want to do:

[aravindhrs]

@dirkw65

Would it e possible for you to post an example put request body that actually creates such a boundary event/task variable?

Especially the boundary event part is confusing to me. Considering it is a normal user task with no configured boundary event, is it really possible to add such a boundary event for an already modeled process with a task variable?

Task Assignment to reviewer and requester

@nvora You can use interrupting boundary event to the reviewer user task and correlate the message with messageName to cancel the process while the task is in review process. Correlate Message: Correlate a Message | docs.camunda.org [image] Deploy this bpmn file and test: DocumentReviewProcess.bpmn (4.9 KB) [image] [image] [image] Correlate Message to trigger the interrupting boundary event which will cancel the process: POST http://{{host}}:{{port}}/{{contextPath}}/message P…