Just for Note

OmniAuth GitHub (Ruby on Rails)

OmniAuth with GitHub acount

https://api.github.com/users/:user

https://api.github.com/users/:user/repos

https://api.github.com/repos/:user/:repo/git/refs

omniauth.rb

use OmniAuth::Builder do
  provider :twitter, ENV['TWITTER_KEY'], ENV['TWITTER_SECRET']
  provider :facebook, ENV['FACEBOOK_KEY'], ENV['FACEBOOK_SECRET']
end

get '/auth/:provider/callback' do
  auth = request.env['omniauth.auth']

  user = User.where(:provider => auth["provider"], :uid => auth["uid"].to_i).first() ||
      User.create(:provider => auth["provider"], :uid => auth["uid"].to_i, :name => auth['info']['name'])

  session[:user_id] = user.id
  session[:user_name] = user.name
  session[:uid] = auth['uid'].to_i
  session[:provider] = auth['provider']

  redirect '/'
end