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Prefect Community

Hey in Prefect 1 we had: @task(_state_handlers_=[post_to_slack]) for posting notifications (errors) to slack.  How would we do this in Prefect 2?

There are a number of parameters named `on_...` . `on_failure` I believe is one of them. Recommend you check those out

there is no universal handler for any state change?

Because on prefect 1 we got the ability to post when task started running, failed and completed all in one function

You can just add a line at the start of each task or make your own wrapper

```from prefect import task

@task(on_failure=[post_task_fail_to_slack])
@post_task_start_to_slack
def my_task():
    ...```