This is the official OmniAuth strategy for authenticating to GitHub. To use it, you'll need to sign up for an OAuth2 Application ID and Secret on the GitHub Applications Page.

use OmniAuth::Builder do
  provider :github, ENV['GITHUB_KEY'], ENV['GITHUB_SECRET']
end

provider :github, ENV['GITHUB_KEY'], ENV['GITHUB_SECRET'],
    {
      :client_options => {
        :site => 'https://github.YOURDOMAIN.com/api/v3',
        :authorize_url => 'https://github.YOURDOMAIN.com/login/oauth/authorize',
        :token_url => 'https://github.YOURDOMAIN.com/login/oauth/access_token',
      }
    }

GitHub API v3 lets you set scopes to provide granular access to different types of data:

use OmniAuth::Builder do
  provider :github, ENV['GITHUB_KEY'], ENV['GITHUB_SECRET'], scope: "user,repo,gist"
end

More info on Scopes.

Copyright (c) 2011 Michael Bleigh and Intridea, Inc.

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