php – 使用服务帐户验证Google InAppPurchase

我想验证在我的Android应用程序中已经做了一个inAppPurchase.

1)我在google API控制台中创建了一个新的服务帐户.

1a)服务帐户列出未授权,并具有“可以查看”权限

2)我正在使用最新版本的https://github.com/google/google-api-php-client

3)我的PHP脚本的代码段：

$client = new Google_Client(); 
$client->setApplicationName('myAppName' );
$client->setClientId('123456789123-vxoasdt8qwe6awerc9ysdfmjysdfysf64werweria8fh.apps.googleusercontent.com');
$key = file_get_contents('/shr/data/stor/b516cexx3123asdf3988345d8133e7f86bfas2553-privatekey.p12');
$service_account_name = '123456789123-vxoasdt8qwe6awerc9ysdfmjysdfysf64werweria8fh@developer.gserviceaccount.com';

$client->setScopes(array('https://www.googleapis.com/auth/androidpublisher') );
$cred = new Google_Auth_AssertionCredentials( $service_account_name,array('https://www.googleapis.com/auth/androidpublisher'),$key );
$client->setAssertionCredentials($cred);

try {  
    $service = new Google_Service_AndroidPublisher( $client ); 
    $googleApiResult = $service->inapppurchases->get($externalAppId,$externalProductId,$purchaseToken);
} catch (Exception $e) {  
    var_dump( $e->getMessage() ); 
}

4)Google的回应：

GET 07001:
(401) The current user has insufficient permissions to perform the
requested operation.

[PURCHASETOKEN] is the purchase token I received from google

5)将$cred-> sub =’foo@bar.de’设置为我的邮件地址

Error refreshing the OAuth2 token,message: ‘{ “error” :
“unauthorized_client”,“error_description” : “Unauthorized client or
scope in request.” }’