使用服务帐户上传的Google云端硬盘始终返回403（存储空间配额）

Question

I wrote some logic to upload files into a Google Drive folder which is shared to a service account (uploader@uploadproject-204816.iam.gserviceaccount.com)

The Google Drive itself is associated with my G Suite account.

This worked for a while, but eventually I started getting this error:

Google.Apis.Requests.RequestError The user's Drive storage quota has been exceeded. [403] Errors [ Message[The user's Drive storage quota has been exceeded.] Location[ - ] Reason[storageQuotaExceeded] Domain[global] ]

Ever since, the upload is not working, getting this error even when uploading a puny file.

Using my real account, I cleaned up all the files owned by the service account, even those that were "unorganized".

The quota to the left says "170MB of 30GB used"

I also waited more than 24hrs.

I think this is about the service account itself, not the drive. But I'm not sure what to check.

I tried inspecting the results of the About.Get() method, didn't find anything useful.

var cred = new ServiceAccountCredential(new ServiceAccountCredential.Initializer(clientEmail)
{
            Scopes = (new[] { "https://www.googleapis.com/auth/drive" }).ToList()
}.FromPrivateKey(privateKey));

service = new DriveService(new Google.Apis.Services.BaseClientService.Initializer { ApiKey = apiKey, HttpClientInitializer = cred });
var about = service.About.Get();

EDIT:

Turns out I needed to do something else to get more information about the quota

var get = service.About.Get();
get.Fields = "*";
var about = get.Execute();

Then I can see in about.StorageQuota

Limit: 16106127360
Usage: 16106125128

So indeed, I understand the storage quota error now. The question is, how do I reset these numbers ? All the files the service account uploaded were deleted by MY account in the same location.

Any ideas ?

Answer 1

It turns out to lower the storage usage for the service account, files need to be deleted with the service account as well.

When does the files get deleted from Google Drive Service account?

Answer 2

you can't delete file created (so owned) by account service with your real account.

even you did that, you'll not see the files on your real account,but they still on the service account.

you have to delete them with the account service.

below a script explained to delete file with PHP. for this you have to know the ID of files you want to delete. so we make request to get all files IDs contained in folder parent referenced by 0B1-GGKdq5A3qX1dzNkhOLW1VWVU (each file and foler is referenced by unique UID like this), and then make a loop todelete every file.

first create client to connect to service account

$drive_service = new Google_Service_Drive($client);

second, get all files in folder referenced by 0B1-GGKdq5A3qX1dzNkhOLW1VWVU

$files_list = $drive_service->files->listFiles(array(
                'fields' =>  'files(id, name)',
                'q' => "'0B1-GGKdq5A3qX1dzNkhOLW1VWVU' in parents" , 
);)  ;
$files_list = $files_list->getFiles() ;

then make loop to delete all files

foreach ($files_list as $file){
        $id = $file->id;
        $resp = $drive_service->files->delete($id);
}