Javascript octokit

rest-js based github api client.
It uses the github api v3 (which you can use for additional docs, test queries).

NOTE:

I find it easier to search the [rest api docs] for a method,
it documents the response object,
also you can try it out locally with gh and get a preview of the results.
(afterwards, find the equivalent method within octokit docs)

Documentation

official docs

https://octokit.github.io/rest.js/v20