$outHandle = fopen('/path/to/destination', 'w+') $content = $service->files->get($fileId, array('alt' => 'media')) $fileId = '0Bxxxxxxxxxxxxxxxxxxxx' // Google File ID $service = new Google_Service_Drive($client) $client->useApplicationDefaultCredentials() Would have been helpful if they had documented this somewhere!ĮDIT: Here's a rough example if anyone else gets stuck of how to save a file. When you call the get() method with the alt=>media parameter as specified in the docs you get the underlying HTTP response which is a Guzzle response object (as apparently the client library uses Guzzle for it's underlying transport).įrom there you can call any Guzzle response method such as $response->getStatusCode() or you can get a stream of the actual file content. I figured it out after a bit of experimenting. The documentation doesn't really go into any detail about what happens when you make that API call, it just says it performs a file download? When you call get(), what actually goes into $content in the example? Is it the contents of the file (in which case this seems troublesome when dealing with large files - surely you'll get out of memory?!) or is it some type of stream reference that I can call fopen on? How would I save this file to disk? I'm having trouble understanding how this works though and have trawled through the code but it didn't give much more info. $content = $driveService->files->get($fileId, array(

Using API v3 this appears to have been deprecated, and according to the docs you call files->get() on the Drive Service with an array parameter of 'alt' => 'media' to get the file itself rather than the metadata.Īnd their example was: $fileId = '0BwwA4oUTeiV1UVNwOHItT0xfa2M' Used the downloadUrl parameter to get a direct link to the file, attached an oAuth token to it and made a GET request to that.Open the JSON key file, you will find an email Go to your Google Drive Folder and shared the edit permission to the email address.I'm trying to understand the download flow for the Google Drive API v3 using PHP.APIs and Services > Enable APIS AND SERVICES.Grant users access to this service account ( > CREATE KEY.Grant this service account access to project > CONTINUE.Service account details > Choose any service account name > CREATE.

Google drive api download file