Hi,
The *Code was already redeemed* error means that you are trying to use an
authorization
code
<https://developers.google.com/adwords/api/docs/guides/authentication#configure_and_use_a_client_library>
that has already been used. A given authorization code can only be used
*once*. Please make sure you are using the authorization code passed in the
request to the *oauth2_callback* when you submit the OAuth request to get
the *refresh token*.
Thanks,
Josh, AdWords API Team
On Tuesday, January 6, 2015 2:23:54 PM UTC-5, Alessandro Dias wrote:
>
> AdsCommon::Errors::AuthError Authorization error occured: Authorization
> failed. Server message: {"error" : "invalid_grant", "error_description" :
> "Code was already redeemed."}
>
> this is the part of autorization
>
> def google_oauth2_callback
> api = AdwordsApi::Api.new(Rails.application.config_for(:adwords_api))
> session[:token] = api.authorize \
> oauth2_callback: user_omniauth_callback_url(:google_oauth2),
> oauth2_verification_code: params[:code]
>
> I'm using: Rails + devise + omniauth-google-oauth2
>
> And also I added the adwords scope
>
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