github.rb

    def generate_tokens(code)
      data = {
        client_id: client_id,
        client_secret: client_secret,
        redirect_uri: callback_url,
        code: code
      }

      response = connection.post do |request|
        request.url '/login/oauth/access_token'
        request.params = data
      end

      if response.status.eql?(200)
        Rack::Utils.parse_nested_query(response.body)
      else
        { error: response.status }
      end
    end