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Hello :wave:
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 <@U01CSHD8Y9X> 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 <@UQVJQAK5H> 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 <@U0176BCNXEV> 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?

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...

BTW, do you happen to know if this section of the docs
&gt; Sooner rather than later, you will be able to store your slack webhook URL in your secure database of Prefect Secrets under `"SLACK_WEBHOOK_URL"`; until then, you need to include it in the `[context.secrets]` section of your prefect configuration file
is still accurate? Do I understand correctly that there’s currently no way to _securely_ pass the webhook url to be used by the slack_notifier?

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

Concerning the custom texts, I created the following feature enhancement issue, as we are also interested in this enhancement:

<https://github.com/PrefectHQ/prefect/issues/3531>

Feel free to edit the issue!

Not sure when I will have time to look into 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 :slightly_smiling_face:

OK, thanks!

I only worry about other people listening to our notifications atm :smile:

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

BTW I tried it out and it’s possible to just set `SLACK_WEBHOOK_URL` prefect secret (using the UI) to the webhook url, and slack_notifier picks it up, so it’s fine security-wise, it’s just that this piece of docs was misleading. Phew :slightly_smiling_face:

I’ve added a PR to the docs to clarify that: <https://github.com/PrefectHQ/prefect/pull/3532>