Cannot figure out how to use matrix notifications or apprise-api

[pedrom34]

Hi!
I'm using argus with ntfy, and everything works great. But I want to switch to matrix for the notifications, and if I use the matrix template, I'm getting and error:
1 error(s) sending message, with initial error: error joining room : Token is not active x 1

Well, I installed apprise-api on my server to use generic webhook, and I can't figure out what to put where.

Can someone here help me?

My webhook is as follows:

curl -X POST \
    -F "tags=updates" \
    -F "body=Test Message" \
    https://apprise-api.domain.tld/notify/matrix

and on argus:

what am I doing wrong?

[JosephKav]

Could you try putting "tags" - "updates" as a JSON payload var? Your curl is sending form data with -F and that isn't directly available in the generic hook

[pedrom34]

THAT WAS IT.
I racked my brains for days, couldn't find the answer, and voilà!
Thank you so much!