sort question: client will do oauth2 for their adwords account on my website, so i will got refresh_token from their account. My oauth2 with client Id+ client secret using my google app. So how i use this credential in library:
https://github.com/googleads/googleads-php-lib/- i fill:
$config['ADWORDS']['developerToken'] = <-- my
$config['OAUTH2']['clientId'] <-- my app
$config['OAUTH2']['clientSecret'] <-- my app
$config['OAUTH2']['refreshToken'] <-- from user oauth2
but get error:
Fatal error: Uncaught GuzzleHttp\Exception\ClientException: Client error: `POST https://www.googleapis.com/oauth2/v4/token` resulted in a `401 Unauthorized` response: { "error": "unauthorized_client", "error_description": "Unauthorized" } in vendor\guzzlehttp\guzzle\src\Exception\RequestException.php on line 113
thanks a lot.