Webhook passing data parameter in post request

I defined a webhook to post alert.

Is a way to passing data in POST url ?

Actually, I have a webhook to send an alert and I would like to set in grafana : I don’t find any field to passing data of the post request. Is it possible ?

curl --header “Content-type: application/json” --request POST --data ‘{“provider”:“grafana”,“description”:“error CPU”}’ https://api.mywebhook/alerting