Create GitHub.com Hook - github

Question

I am attempting to create a hook using the create hook api found on
http://developer.github.com/v3/repos/hooks/#create-a-hook
but I am getting a 301 when I attempt to post, so I am sure I am doing it wrong...
A couple of questions...
1) How does github know that I can create a hook for that repo if it is private? I am sure I need to authenticate with the POST, but how?
2) Is the following curl statement a valid example of how to create a hook?
curl -v -H "Content-Type: application/json" -X POST -d "{ "name": "cia",
"active": true, "events": [ "push" ], "config": {
"url": "http://requestb.in/######", "content_type": "json" } }"
http://github.com/repos/#####/#####/hooks
I have replaced certain elements with ##### for security sake...
3) If the above is incorrect, may I please have a snippet of a valid example to create a hook for the webhook named "cia"?

Answer 1

curl -usigmavirus24 -v -H "Content-Type: application/json" -X POST -d '{"name": "cia", "active": true, "events": ["push"], "config": {"url": "...", "content_type": "json"}}' https://api.github.com/repos/sigmavirus24/reponame/hooks
Is the correct curl command. The URL you're posting to has to be https://api.github.com/:endpoint where :endpoint in this case is repos/username/reponame/hooks. You also need to use 's around the JSON body for the curl command because otherwise you'll get strings like "{ " concatenated with the output of commands like name, cia, active, events, etc.
Also the -u :username option is necessary for curl so it will tell curl that it MUST authenticate and ask you for the password to do so.
If you don't mind your password being in your bash history (WHICH YOU SHOULD) you can also do -u username:password. Or even better you can base64 encode your credentials in the form username:password and then send that as a header like so: Authentication: Basic <base64-encoded-credentials.