Various questions about workflows

Hello.

I am currently evaluating StackStorm and quite like it so far, we are comparing it against other more generic process workflow engines like Camunda for self-remediation on a network environment,

I have been playing with workflows but I got a few questions

On this kind of workflow, how could I for example on, make the loop only run the action when a specific condition is matched (for example item().status != "closed"

version: 1.0

description: Close all the Opsgenie alerts

tasks:
  list_alerts:
    action: opsgenie.list_alerts
    next:
      - when: <% succeeded() %>
        do: close_alerts
        publish:
          - alerts: <% result().result.data %>

  close_alerts:
    with:
      items: <% ctx(alerts) %>
      concurrency: 3
    action: opsgenie.close_alert alert_id=<% item().id %>

Also there is a interesting feature on Camunda that I could not find here : https://docs.camunda.org/manual/7.12/reference/bpmn20/events/message-events/#message-intermediate-catching-event

It would allow for a workflow to pause somewhere in a step and wait for an external event (typically a webhook) to trigger to continue, I could not find a way to do the same here ?

Thanks.

I think StackStorm Inquiries is what you’re looking for. Check out Inquiries — StackStorm 3.1.0 documentation

On checkpoint/pause, you can take a look at inquiries at Inquiries — StackStorm 3.1.0 documentation and see if that solve your use case. You can call the inquiry API or CLI to resume the workflow if it needs to be automated.

On making with-items only run the action when a specific condition is matched (item().status != “closed”), you can use a YAQL or Jinja expression to filter the items based on the status in your use case before passing that into with-items.

Can you give me an example ? I though YaQL and Jinja were only in Mistral.

@kedare start here:

https://docs.stackstorm.com/orquesta/expressions.html