Hey! I'm currently working with the PrefectFutures object right now and building off of what I found on a forum post of:

task_future.wait()  
    if task_future.get_state().is_failed():
        name_ = task_future.task_run.name
        id_ = task_future.task_run.flow_run_id
        <http://requests.post|requests.post>(
            SLACK_WEBHOOK_URL,
            json={"text": f"The task `{name_}` failed in a flow run `{id_}`"},
        )

Though, I was thinking it'd be wildly helpful for there to also be a way we could also include the error log in there. Is there a way for the error log to be posted to the slack_webhook_url?

The

state.message

has the string of the exception:

@task
def my_task():
    raise ValueError("I failed!")

gives

state.message='Task run encountered an exception ValueError: I failed!'

but if you want the full traceback you'll have to do something else