Google Ads Api Oauth Catchable Exception

[necrogami]

        try {
            // Generate a refreshable OAuth2 credential for authentication.
            $oAuth2Credential = (new OAuth2TokenBuilder())
                ->withClientId(env('GOOGLE_ADS_CLIENT_ID'))
                ->withClientSecret(env('GOOGLE_ADS_CLIENT_SECRET'))
                ->withRefreshToken($refreshToken)
                ->build();
        } catch (\Throwable $e) {
            return $this->job->fail();
        }

        try {
            // Construct a Google Ads client configured from a properties file and the
            // OAuth2 credentials above.
            $googleAdsClient = (new GoogleAdsClientBuilder())
                ->withOAuth2Credential($oAuth2Credential)
                ->withDeveloperToken(env('GOOGLE_ADS_DEVELOPER_TOKEN'))
                ->withLoginCustomerId($customerID)
                ->withTransport('rest')
                ->build();
        } catch (\Throwable $e) {
            return $this->job->fail();
        }

So i have the code above which is using the google auth library to create the oauth credential, however some of our clients have expired refresh tokens: This spits out:

Message
Client error: POST https://oauth2.googleapis.com/token resulted in a 400 Bad Request response:
{
 "error": "invalid_grant",
 "error_description": "Token has been expired or revoked."
}
Level
ERROR
Exception
{
    "class": "GuzzleHttp\\Exception\\ClientException",
    "message": "Client error: `POST https://oauth2.googleapis.com/token` resulted in a `400 Bad Request` response:\n{\n  \"error\": \"invalid_grant\",\n  \"error_description\": \"Token has been expired or revoked.\"\n}\n",
    "code": 400,
    "file": "/usr/local/bigtop/vendor/guzzlehttp/guzzle/src/Exception/RequestException.php:113",
    "trace": [
        "/usr/local/bigtop/vendor/guzzlehttp/guzzle/src/Middleware.php:69",
        "/usr/local/bigtop/vendor/guzzlehttp/promises/src/Promise.php:204",
        "/usr/local/bigtop/vendor/guzzlehttp/promises/src/Promise.php:153",
        "/usr/local/bigtop/vendor/guzzlehttp/promises/src/TaskQueue.php:48",
        "/usr/local/bigtop/vendor/guzzlehttp/promises/src/Promise.php:248",
        "/usr/local/bigtop/vendor/guzzlehttp/promises/src/Promise.php:224",
        "/usr/local/bigtop/vendor/guzzlehttp/promises/src/Promise.php:269",
        "/usr/local/bigtop/vendor/guzzlehttp/promises/src/Promise.php:226",
        "/usr/local/bigtop/vendor/guzzlehttp/promises/src/Promise.php:62",
        "/usr/local/bigtop/vendor/guzzlehttp/guzzle/src/Client.php:123",
        "/usr/local/bigtop/vendor/google/auth/src/HttpHandler/Guzzle6HttpHandler.php:47",
        "/usr/local/bigtop/vendor/google/auth/src/OAuth2.php:544",
        "/usr/local/bigtop/vendor/google/auth/src/Credentials/UserRefreshCredentials.php:114",
        "/usr/local/bigtop/vendor/google/auth/src/CredentialsLoader.php:214",
        "/usr/local/bigtop/vendor/google/gax/src/CredentialsWrapper.php:208",
        "/usr/local/bigtop/vendor/google/gax/src/Transport/HttpUnaryTransportTrait.php:111",
        "/usr/local/bigtop/vendor/google/gax/src/Transport/RestTransport.php:110",
        "/usr/local/bigtop/vendor/google/gax/src/GapicClientTrait.php:608",
        "/usr/local/bigtop/vendor/google/gax/src/Middleware/CredentialsWrapperMiddleware.php:61",
        "/usr/local/bigtop/vendor/google/gax/src/Middleware/FixedH

Is there a good way to be able to catch that since it's being caught inside the libraries and i'm not seeing a way to properly handle that exception.

[necrogami]

This has been open for over a half a month, I've been told to post here by both the googleads api php library team and google ads api forums.

Is there anyone who can help me with this?

[bshaffer]

Hi @necrogami!

Do you know what is causing your refresh_tokens to be revoked? Refresh tokens do not expire.

As far as an elegant way to solve this, you could probably add a middleware to the GoogleAdsClient, but that would be out of the scope of this auth library.

[necrogami]

We have a lot of customers and it's possible someone inside the company replaced the token without updating the token in our system. This happens in the auth layer and not the google ads client, i've already been told by the ads api team that this is an auth issue and they closed my corresponding ticket. googleads/google-ads-php#803