Hi Anash, Thanks for your response and the suggestion. We are already reusing OAuthProvider instances do reduce refresh frequency. We had experienced rate limit errors from the OAuth2 servers before (see http://goo.gl/wdDEKU) and the error page was different - is it possible to receive different error pages for rate limit errors?
I've opened Issue #7 ( https://github.com/googleads/googleads-adwords-dotnet-lib/issues/7) on the AdWords API .NET library to make the code path more robust. Cheers, Akil On Monday, January 6, 2014 11:00:53 PM UTC, Anash P. Oommen (AdWords API Team) wrote: > > Hi Akil, > > My initial guess is that the page is a rate limit error from the OAuth2 > servers (too many instances trying to refresh access token simultaneously). > It's a matter of chance that a particular server failed, and the error > would go away if the code were retried after a minute or so. > > You could reuse the OAuthProvider instance between multiple AdWordsUser > instances to reduce its frequency, but could you also open an issue against > the AdWords API .NET library to make this code path more robust? > > Cheers, > Anash P. Oommen, > AdWords API Advisor. > > On Monday, January 6, 2014 7:09:32 AM UTC-5, Akil Burgess wrote: >> >> Hi All, >> >> We've noticed a weird authentication error that was occurring on one of >> our application servers over the weekend. All of our >> *MutateJobService.mutate* API calls were failing with the error below >> across multiple accounts. The weird thing is all other API calls were >> unaffected and the MutateJobService.mutate API calls succeeded across our >> other application servers (which are all using the same OAuth2 >> credentials). After restarting the failing application instance the errors >> disappeared. >> >> Is there a reason why the refresh would only fail for one API call and >> not for others? Similarly, why would the refresh only fail on one >> application instance and not others? >> >> Thanks! >> Akil Burgess >> >> >> An unhandled exception occurred. >> [Google.Api.Ads.Common.Lib.AdsOAuthException]: Failed to refresh access >> token. >> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" " >> http://www.w3.org/TR/html4/loose.dtd"><html><head><title>Google >> >> Accounts</title><meta http-equiv="content-type" >> content="text/html; charset=utf-8"><meta http-equiv="X-UA-Compatible" >> content="IE=edge" /><meta name="viewport" >> content="width=device-width, initial-scale=1, minimum-scale=1, >> maximum-scale=1, user-scalable=0" /><link rel='stylesheet' >> type='text/css' href=' >> https://ssl.gstatic.com/accounts/o/1893590695-error_page_css_ltr.css'> >> <script type="text/javascript" src=" >> https://ssl.gstatic.com/accounts/o/635117462-common_lib.js >> "></script> >> <style>@media screen and (max-width:500px) {#robot {background: >> none; min-height: 0; min-width: 0; padding: 0;}#stack_trace {display: >> none;}} >> #oauth2_request_info_header {background-image: url(" >> https://ssl.gstatic.com/accounts/o/blank.gif";);}</style></head><body >> >> ><div id="robot"></div><a href="//www.google.com/" >> id="googlelogo"><img src="//www.google.com/images/logo_sm.gif" >> alt="Google"></a><p class="large"><b>403.</b> >> <ins>That's an error.</ins></p><p class="large">You >> are not authorized to perform this request. <ins>That's all we >> know.</ins></p></body></html> >> >> Stack Trace: >> at >> Google.Api.Ads.Common.Lib.OAuth2ProviderForApplications.RefreshAccessTokenInOfflineMode() >> at Google.Api.Ads.Common.Lib.OAuth2ProviderBase.GetAuthHeader() >> at Google.Api.Ads.AdWords.Lib.AdWordsSoapClient.InitForCall(String >> methodName, Object[] parameters) >> at Google.Api.Ads.Common.Lib.AdsSoapClient.MakeApiCall(String >> methodName, Object[] parameters) >> at Google.Api.Ads.AdWords.v201306.MutateJobService.mutate(Operation[] >> operations, BulkMutateJobPolicy policy) >> ... >> > -- -- =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ Also find us on our blog and discussion group: http://googleadsdeveloper.blogspot.com http://groups.google.com/group/adwords-api =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ You received this message because you are subscribed to the Google Groups "AdWords API Forum" group. To post to this group, send email to adwords-api@googlegroups.com To unsubscribe from this group, send email to adwords-api+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/adwords-api?hl=en --- You received this message because you are subscribed to the Google Groups "AdWords API Forum" group. To unsubscribe from this group and stop receiving emails from it, send an email to adwords-api+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
![https://ssl.gstatic.com/accounts/o/blank.gif"](https://ssl.gstatic.com/accounts/o/blank.gif"){kind=link}