What's the best way to handle asynchronous GitHub API calls?

[LearningNerd]

Some GitHub API calls trigger actions that take a while to complete, so the response from GitHub might not have the information required. (For example, there's a delay between forking a repo and when that repo is actually available for additional actions.)

I noticed a while ago that Mavo.io addressed that issue, so I should take a closer look at the source code for some ideas. I wonder if there are other examples or tutorials on this, or if GitHub offers any suggestions in their documentation.