from conversation in irc. it's a service hook that will trigger pages builds.
adding a github pages service hook for rebuilding pages
What payload do you think is needed? The builds action doesn't take anything really.
I just assumed the default payload would be passed along, but not actually used. You're right, no payload is really necessary. If it's hitting what will be a public API then whatever is necessary to make the build.
Jeez, this is why I shouldn't promise secret features to friends :) Do you still need this?
Did something happen? I'd still love this, but didn't know if it was ever implemented.
The secret API endpoint is, actually. I totally forgot about this, but then someone else on the team found my undocumented API endpoints :) We're going to investigate what it'll take to launch (I'm a little worried what would happen if a flood of page build requests come in, for example).