Hello 👋 Is it possible to somehow get the url of a currently running flow? I'd like to have a task which sends a slack notification, which would include a link to the current flow. I can't seem to find anything like that in the docs, but I thought I'd ask, maybe I'm missing something.

Hey @Magda Stożek you can create an alert in Prefect Cloud when a Flow run starts which will include the link to the flow run in Cloud.

Yes, you can use state handlers for what @Jacob Blanco described, as follows:

from prefect.utilities.notifications import slack_notifier

# Setup for Slack notifications
handler = slack_notifier(
    backend_info=True,
    only_states=[prefect.engine.state.Success, prefect.engine.state.Failed],
)

prefect.context.secrets = {
    "SLACK_WEBHOOK_URL": "<https://hooks.slack.com/services/>..."
}

with Flow(
    name=flow_name,
    state_handlers=[handler],
    ) as flow:
  ...

https://api.slack.com/messaging/webhooks

Thanks for the example @Robin I’m being lazy. You can also create these in Cloud itself if you want to quickly experiment with stuff.

thanks. I did have a look at the slack notifier built-in in Prefect, but it seems that I don’t have the possibility to fine-tune the text of the notification (e.g. add people to mention, etc) - is that right?

hmmm I’m not sure about that.

looking at the source code, it seems that it is currently not possible. However, it should not be too much of an effort to add **kwargs and custom text...

thanks @Robin!

Good question, I was wondering also how secure the slack apps are. Do you have background knowledge about it?

I know that the incoming webhook url is something you should keep secret if you don’t want other people posting to your slack 🙂

OK, thanks! I only worry about other people listening to our notifications atm 😄

Thanks for creating the issue 🙂 I’ll keep an eye on it