Getting the file ID of a Created File To Delete- Google Drive API

Question

I'm trying to get the file ID of a created file using the google drive API so I can then use that to delete files. Here is the code:

$file = new Google_Service_Drive_DriveFile();
$file->setName($fileName);
$file->setDescription('Volunteer Hours');
$file->setParents(array($folderId));
$data = file_get_contents($filePath);
$createdFile = $this->service->files->create($file, array(
    'data' => $data,
    'uploadType' => 'multipart'
));

Is there some kind of .id method where I can say:

$createdFileID = $createdFile.id;

I have looked into the google drive api but wasn't able to find any such method. The reason I want an id for an uploaded file is so I can delete files if I wanted to using that specific id Ultimately, here is the function I'm trying to write:

// Deletes a specific file from a specific folder
function deleteFile($folderName, $fileID) {

}

This way, we are protected and delete the right file if there happens to be files with the same name in a given folder.

Answer 1

I believe your goal as follows.

1. You want to retrieve the file ID of the uploaded file on Google Drive using googleapis for php.
2. When the filename of $fileName is existing in the specific folder of $folderName, you want to delete the existing file.

Answer for Question 1:

In this case, how about the following modification?

From:

$createdFile = $this->service->files->create($file, array(
    'data' => $data,
    'uploadType' => 'multipart'
));

To:

$createdFile = $this->service->files->create($file, array(
    'data' => $data,
    'uploadType' => 'multipart'
));
$createdFileID = $createdFile->getId();  // Added

• By this, the file ID of the uploaded file can be retrieved with $createdFileID.

Answer for Question 2:

When you want to delete the file using the filename and folder name at function deleteFile($folderName, $fileName) {}, how about the following sample script?

Sample script:

function deleteFile($folderName, $fileName) {
    $client = getClient();
    $drive = new Google_Service_Drive($client);

    $res1 = $drive->files->listFiles(array("q" => "name='{$folderName}' and trashed=false"));
    $folderId = $res1->getFiles()[0]->getId();

    $res2 = $drive->files->listFiles(array("q" => "name='{$fileName}' and '{$folderId}' in parents and trashed=false"));
    if (count($res2->getFiles()) == 0) {
        // When the filename of $fileName is not existing,
        // do something
    } else {
        $fileId = $res2->getFiles()[0]->getId();
        $drive->files->delete($fileId);
    }
}

• In this case, when the filename of $fileName is existing in the specific folder of $folderName, the existing file is deleted.

References:

• Files: delete

Added:

When you want to delete the file using the file ID, you can use the following script.

function deleteFile($fileID) {
    $client = getClient();
    $drive = new Google_Service_Drive($client);
    $drive->files->delete($fileID);
}

• In this case, $folderName is not required to be used. Because at Google Drive, all files has the unique file ID.