GitHub GraphQL

GitHub provides a GraphQL API as well as the older REST API.

The GitHub docs has a page comparing the two, but it boils down to:

• REST APIs return more data than what you need, but are simpler to use.
• GraphQL APIs return exactly what you requested, but are more difficult to use.
• "Occasionally, a feature may be supported on one API but not the other."

For usage information, check out Octokit GraphQL