Hi,

For OAuth2 authorization you need a verification code in order to obtain 
the refresh token. Please see this code as an example:

  
https://github.com/googleads/google-api-ads-ruby/blob/master/adwords_api/examples/v201309/misc/setup_oauth2.rb


-Danial, AdWords API Team.


On Thursday, December 19, 2013 4:28:10 AM UTC+4, jroiga...@gmail.com wrote:
>
> Hi,
>
> I am using the Ruby gem. When trying to do an API call I keep getting the 
> error that I showed in the title.
>
> In the docs of the Wiki and the Youtube screencast it is not shown what 
> should we do in order to get the access from the User. Could you please 
> tell me what am I missing here?
>
> require 'adwords_api'
>
> class Client
>   def initialize
>     @adwords = AdwordsApi::Api.new({
>       :authentication => {
>         :method => 'OAuth2',
>         :oauth2_client_id => 'xxxx',
>         :oauth2_client_secret => 'xxx',
>         :developer_token => 'xxx',
>         :client_customer_id => '5xxxx',
>         :user_agent => 'Ruby Sample'
>       },
>       :service => {
>         :environment => 'Production'
>       }
>     })
>   end
>
>   def get_service(name, version)
>     return @adwords.service(name, version)
>   end
> end
>
> client = Client.new
> campaign_srv = client.get_service(:CampaignService, nil)
> campaigns = campaign_srv.get({:fields => ['Id', 'Name', 'Status']})
>
>
>

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