Bring your towel and join one of the fastest growing data communities. Welcome to our second-generation open source orchestration platform, a completely rethought approach to dataflow automation.

Prefect Community

Quick question on the <https://docs.prefect.io/api-ref/prefect/blocks/notifications/#prefect.blocks.notifications.SlackWebhook|Orion Slack block> `.notify(body="message")`
I want to tag `@ here` in certain circumstances, not getting the intended result thus far - it prints out plain text without raising notifications.

tried various syntax options: `&lt;! here&gt; &lt;! here|here&gt; <@here>`  (without the spaces obviously - added them here in order to be able to send this message)
as well as all the combinations I've seen in Slack docs.
I can see Apprise is used under the hood. Does anyone know the correct syntax? Is the syntax deactivated because Apprise formats it as an attachment block? Is the syntax correct but something wrong with my webhook config?

Thanks

Hi Michal, to my understanding it should be `&lt;! here&gt;` (without the space).

I can see if I'm able to test it out on my end.

Thanks Bianca! Yes please, if you could try would be awesome. I tried all the combinations and it just comes out as plain text. Quite a head scratcher

If it works for you, that will set me on a different path

Just checking if you had a chance. Didn't realize how popular this channel was!

Okay the syntax was correct but the server object in the apprise client has to have ‘use_blocks’ set to true

Hi Michal! Apologies for getting back to you late on this. I must admit you got further than I did.

For education purposes, would you mind dropping some pseudo code for how you configured the apprise client? I'm sure other people will appreciate it if they get stuck on the same issue.

Sure I’m on iPhone rn but basically 

wh = SlackWebhook()
s: list = wh._apprise_client.servers

Only one element in that list 

s[0].use_blocks = True

Then mentions render properly. Might be worth exposing in your SlackWebook block in some future release