How to trigger Slack notification provider on login event?

Hi everyone!
I started using casdoor recently and love it! Thank you for all the work.

I have a new detail to implement on my end but not sure how;
I'd like to fire a login event to a notification provider, but as it stands, a newly created and tested Slack Notification Provider works, but doesn't do anything.

I moved to this instead of using a webhook because the payload structure for slack needs to be specific and we currently can't modify that

How do I configure a notification provider to be triggered on login event for a particular application? The official documentation doesn't appear to mention any of these details

Thanks in advance!

what's your main claim? Can you be short in sentences?

Too long to read

How do I get a slack notification provider to trigger when an event happens

I can't use slack webhooks because casdoors payloads are incompatible

You just can't give full details in one time?

I don't have time to do a 1 : 1 chat here

I gave the full details above but you said "too long to read"