Hi everyone,
I am hoping to create a webhook to hit a workflow dispatch event (which then triggers a re-build of our Gatsby site) as per the docs here: https://docs.github.com/en/free-pro-team@latest/rest/reference/actions#create-a-workflow-dispatch-event
This endpoint requires 'ref' to be set in the body, however Prismic's Webhooks interface doesn't provide a way to send body parameters.
Is there a way to do this or do I have to set up a proxy?
Hi Mike, welcome 
I'm a user trying to get something very similar going myself.
From my looking it seems that repository_dispatch is the better fit for what you're trying to do.
Check here:
Hi there! I've already been down the road with repository_dispatch however it's only helpful for dispatches made on the default branch, whereas I need to trigger a deploy on another branch
Looks like the team are focussing on improving webhooks this week.
I've requested they include what you're suggesting. See how it goes.