My goal is to get the tree for the latest SHA in the default branch
GET /repos/:owner/:repo/git/trees/:sha
How do I find the lastest SHA from the default branch?
I know that I can call
GET /repos/:owner/:repo/branches/:branch
But I can't just use "master" for the branch as not all repos use master as the default branch.
How do I find out what the default branch for a repo is?
Make a call to /repos/:owner/:repo and read the default_branch property value - this is the name of the default branch. See example response here: http://developer.github.com/v3/repos/#get