Hi,
To address your questions:
a) Auth tokens expire after 2 weeks, or when a user changes the
password on their account.
b) The reason returned for an expired auth token is
LOGIN_COOKIE_INVALID, which isn't immediately obvious. We are working
on improving the documentation to make this more clear.
Best,
- Eric Koleda, AdWords API Team
On Mar 16, 9:00 pm, SEM wrote:
> We use the ClientLogin RESTful API for authentication (http://
> code.google.com/apis/accounts/docs/AuthForInstalledApps.html) for
> Google Adwords API v200909.
> As recommended, we plan on caching the authtoken returned by the
> ClientLogin API for subsequent use in AdWords API calls.
>
> A few questions arise with regards to this implementation:
>
> a. What are the criteria that cause an authtoken to change?
> e.g. expiration after a set duration of time, user manually changed
> his login credentials, etc.
>
> b. Subsequently, after an authtoken changes, when we attempt to use a
> previously cached value, we would probably get an AuthenticationError
> via a SOAP response.
> The various reasons for this as enumerated (as
> perhttp://code.google.com/apis/adwords/v2009/docs/reference/AdGroupAdSer...)
> are...
>
> AUTHENTICATION_FAILED
> CLIENT_CUSTOMER_ID_IS_REQUIRED
> CLIENT_EMAIL_REQUIRED
> CLIENT_CUSTOMER_ID_INVALID
> CLIENT_EMAIL_INVALID
> CLIENT_EMAIL_FAILED_TO_AUTHENTICATE
> CUSTOMER_NOT_FOUND
> GOOGLE_ACCOUNT_DELETED
> GOOGLE_ACCOUNT_COOKIE_INVALID
> FAILED_TO_AUTHENTICATE_GOOGLE_ACCOUNT
> GOOGLE_ACCOUNT_USER_AND_ADS_USER_MISMATCH
> LOGIN_COOKIE_REQUIRED
> NOT_ADS_USER
> OAUTH_TOKEN_INVALID
> OAUTH_TOKEN_EXPIRED
> OAUTH_TOKEN_DISABLED
> OAUTH_TOKEN_REVOKED
> OAUTH_TOKEN_HEADER_INVALID
> LOGIN_COOKIE_INVALID
> FAILED_TO_RETRIEVE_LOGIN_COOKIE
> USER_ID_INVALID
>
> Unfortunately, the documentation isn't very clear about what causes
> each of these failure reasons to occur.
>
> e.g. if the token is invalidated by Google after a set period of time,
> which of the following AuthenticationError.Reason would we get:
> AUTHENTICATION_FAILED?
> OAUTH_TOKEN_INVALID?
> OAUTH_TOKEN_EXPIRED?
> LOGIN_COOKIE_INVALID?
> FAILED_TO_RETRIEVE_LOGIN_COOKIE?
>
> We need this information to determine whether we should 'automatically
> retry' a ClientLogin request with the original login credentials (and
> follow it up with the failed SOAP request) or whether the process
> should be aborted.
>
> Any help on this is appreciated.
>
> Thank you!
--
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Have you migrated to v200909 yet?
The v13 sunset is on April 22, 2010.
Also find us on our blog and discussion group:
http://adwordsapi.blogspot.com
http://groups.google.com/group/adwords-api
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