undocumented API - support

[PatWie]

There are some useful, but undocumented api urls, like
https://api.github.com/user/:id. Is there a trick to request these apis?

Also works for:
https://api.github.com/repositories/:id

[prasadsurase]

@PatWie you can retrieve an repository's details using its id after this PR has merged.

[Shwetakale]

@PatWie I think if API is not documented on Github then it's not supported officially by Github so they might update it or remove it any time which could break functionality of the apps using it so developers should not use such API's. Thoughts?

[PatWie]

Well, if you want to robustly deal with repository information, it is a much better idea to just store the repo-id rather than everything else. In addition, GitHub allows users to change their nicknames. This also would screw up any tight integration.

I currently extent this library using

module GithubRepoExtension
  def get_by_id(*args)
    arguments(args, required: [:id])
    get_request("/repositories/#{arguments.id}", arguments.params)
  end
end

But looking forward the merge.

[piotrmurach]

@Shwetakale I think the risk is the same as for any other documented method call. GitHub chops and changes stuff quite frequently so I don't see a problem merging this in.

@prasadsurase Thanks for working on this PR.

@PatWie Done.