使用OmniAuth刷新令牌访问Google DFP API

时间:2014-12-19 18:44:50

标签: ruby-on-rails omniauth google-dfp

我正在使用rails应用程序,我需要访问用户Google Double Click for Publisher Data。我正在使用' google-dfp-api'宝石。我已为用户设置了OmniAuth,以对其DFP帐户进行身份验证,并根据Google文档(https://developers.google.com/doubleclick-publishers/docs/authentication)存储刷新令牌。我无法弄清楚如何使用刷新令牌来访问DFP API。

我正在尝试建立如下所示的连接:

dfp = DfpApi::Api.new({
      :authentication => {
        :method => 'OAuth2',
        :oauth2_client_id => GOOGLE_CLIENT_ID,
        :oauth2_client_secret => GOOGLE_CLIENT_SECRET,
        :user_agent => USER_AGENT,
        :application_name => APP_NAME,
        :oauth2_token => {
          :refresh_token => GOOGLE_DFP_REFRESH_TOKEN
        }
      },
      :service => {
        :environment => 'PRODUCTION'
      }
    })

AnyTime我在此之后尝试进行查询,我收到以下错误:

DfpApi::V201411::UserService::ApiException: [AuthenticationError.AUTHENTICATION_FAILED @ ]

1 个答案:

答案 0 :(得分:0)

您不使用刷新令牌来访问api,请使用您的access_token。在我打电话之前,我正在刷新access_token。

刷新您的令牌:

 def refresh_access_token
   refresh_token = self.refresh_token
   google_refresh_url = "https://accounts.google.com/o/oauth2/token"
   response = RestClient.post google_refresh_url, :grant_type => 'refresh_token', :refresh_token => refresh_token, :client_id => ENV['GOOGLE_CLIENT_ID'], :client_secret => ENV['GOOGLE_CLIENT_SECRET']
   response_hashed = JSON.parse(response)
   new_access_token = response_hashed['access_token']
   self.save_new_access_token(new_access_token)
 end

然后OAuth DFP API哈希应如下所示:

@api = DfpApi::Api.new({
  :authentication => {
    :method => 'OAuth2',
    :oauth2_client_id => ENV['GOOGLE_CLIENT_ID'],
    :oauth2_client_secret => ENV['GOOGLE_CLIENT_SECRET'],
    :application_name => ENV['GOOGLE_APP_NAME'],
    :client_customer_id => google_dfp_credential.google_client_customer_id,
    :network_code => google_dfp_credential.network_code,
    :user_agent => ENV['GOOGLE_DFP_USER_AGENT'],
    :oauth2_token => {
      :access_token => google_dfp_credential.access_token,
     },
   },
   :service => {
     :environment => 'PRODUCTION'
    }
  })

user_agent是您应用的唯一字符串,每次访问api时都应该相同。有关详细信息,请参阅以下链接:

http://googleadsdeveloper.blogspot.com/2013/11/please-set-user-agent-or-application.html

您还需要手动登录dfp帐户,从您正在访问的dfp帐户获取network_code。据我所知,这不是通过OAuth身份验证返回的。有关如何获取network_code的详细信息,请参阅以下链接中的步骤2:

https://developers.google.com/doubleclick-publishers/docs/start