An attempt at accessing the AdSense API from Rails

rails_adsense_API.rb

class ApplicationController < ActionController::Base
  protect_from_forgery

  before_filter :check_auth

  def check_auth

    @client = Google::APIClient.new
    @client.authorization.client_id = '************.apps.googleusercontent.com'
    @client.authorization.client_secret = '***************'
    @client.authorization.scope = 'https://www.googleapis.com/auth/adsense'
    @client.authorization.redirect_uri = 'localhost:3000/callback'
    @client.authorization.code = params[:code] if params[:code]

    if @serialized_auth
      @client.authorization = @serialized_auth
    end

    if @client.authorization.refresh_token && @client.authorization.expired?
      @client.authorization.fetch_access_token!
    end
    @adsense = @client.discovered_api('adsense', 'v1.1')
    unless @client.authorization.access_token || request.path_info =~ /^\/oauth2/
      redirect_to action: 'auths#authorize'
    end

  end

end


#-------

class AuthsController < ApplicationController

  def index
  call = {
    :api_method => @adsense.reports.generate,
    :parameters => {
      'startDate' => '2011-01-01',
      'endDate' => '2011-08-31',
      'dimension' => ['CUSTOM_CHANNEL_NAME'],
      'metric' => ['EARNINGS']
    }
  }

  @response = @client.execute(call)
  end
  
  def callback
    @client.authorization.fetch_access_token!
    # Persist the token here
    @serialized_auth = @client.authorization

  end

  def authorize
    redirect_to action: 'callback', status: 303
  end

end