I have some Perl code that retrieves a list of files from a specified folder on my Google drive using the following GET URL:
https://www.googleapis.com/drive/v3/files?q='[FOLDER_ID]'+in+parents&fields=files(name,webViewLink,thumbnailLink,videoMediaMetadata/durationMillis)&key=[GOOGLE_DRIVE_API_KEY]
I have not changed anything recently, but today I noticed that the using this URL returns an empty files array. The response code is "200" and the content body of the response is:
{
"files": []
}
I have validated that the folder ID is still correct according to Google Drive.
I have validated that my Google Drive API key is still enabled and correct.
I have validated that the files do exist in that folder on the Google Drive.
Has something changed on the Google API side that would cause this API request to stop returning the list of files in the specified folder?
Thanks!
Finally figured this out: I needed to pass the
X-Goog-Drive-Resource-Keys
HTTP header with the request, and set its value to:
[FOLDER_ID]/[FOLDER_RESOURCE_KEY]
Apparently, as part of Google's Drive API security update this month, links that are shared for "everyone with the link" now require this HTTP header and the resource ID/key to access those shared files.
Related
I obtained the file download url through the following interface, and the corresponding field is webContentLink, but why did I return a 404 status code when I accessed this download url. I have tested this problem only with some of these accounts. There is no idea to solve this problem now.
interface address:https://developers.google.com/drive/api/v3/reference/files/list?hl=en&authuser=1
According to their docs, WebContentLink is only available for files with binary content in Google Drive.
If you want to download all kind of file then use the files.get method with the ID of the file to download and set the alt=media URL parameter
Reference: https://developers.google.com/drive/api/guides/manage-downloads#download_a_file_stored_on_google_drive
I have a file which is shared public.
https://drive.google.com/file/d/1SuYrjwWJKlNmSEr6CpcOVFUT1MpGqLe3/view
But when I use Google API to access the file's meta data, the result is 404 not found.
https://www.googleapis.com/drive/v3/files/1SuYrjwWJKlNmSEr6CpcOVFUT1MpGqLe3
Can someone tell me the reason of this behavior?
If you want to access via Drive API a file that is not located on your Drive, you need to set
supportsAllDrives to true:
https://developers.google.com/drive/api/v3/reference/files/get?apix_params=%7B%22fileId%22%3A%221SuYrjwWJKlNmSEr6CpcOVFUT1MpGqLe3%22%2C%22supportsAllDrives%22%3Atrue%7D
Before January 1, 2020 Google Drive API allows to specify access token in query string. Therefore it was possible to get downloadUrl for video file in Google Drive, then to add access token as parameter in the query string and this url can be used as source url for html player in browser. Now in accordance with changes to the Google Drive API this way does not work. The article recommends to use webContentLink but it seems they require cookies. Therefore if user is not logged into corresponding Google account the webContentLink cannot be used as source url for html player as instead of content of the file it returns Google page for login. If I share the file then webContentLink returns the file content but this variant is not acceptable for me. I know that it is possible to download file in browser memory and then to use data url. But this variant is not good for big video file as before playing all file has to be download.
Does Google Drive API offer at current moment an option similar to downloadUrl with access token in query string?
Using js file picker to select PDF files from Google Drive.
I'm encountering an instance when the downloadUrl is undefined.
I don't understand what can cause this.
I know downloadUrl can be empty for native Google formats, but these are PDF files.
I'd like to know what scenarios (except native Google formats) can cause an empty downloadUrl.
Thanks
You should use the Drive API to fetch the picked files' metadata in order to retrieve the downloadUrl. https://developers.google.com/drive/v2/reference/files/get
Native Google formats can be downloaded (converted and downloaded) via their exportLinks: https://developers.google.com/drive/v2/reference/files#exportLinks
The response I was receiving was 403.
And the scenario was user accessing "work" Drive (Google Drive for your domain)
Turns out Google Drive for your domain Administrators can restrict the permission to install third party apps.
https://support.google.com/a/answer/6105699?hl=en
User will still be able to allow access for the app and select files. Its just going to fail every time with a 403. Very confusing UX.
Having a very frustrating issue with Google Drive API.
This is a Google App Engine Java environment.
I need to download a file based on an offline permission - the file is shared ("Can Edit") with the user who gives the offline permission. I am requesting full https://www.googleapis.com/auth/drive scope. I store off the refresh token this generates.
The app then uses this refresh token to get an access token, which it uses to try and download a file. This works file if the file is a Google Apps file (a Google document, spreadsheet etc.) but gives a 401 if the file is an uploaded file with content (e.g. a PDF file, Word file etc.). I can confirm this at a simple level by appending the share urls with ?access_token=xxxx - this works for the Google Apps file but not for an uploaded normal file, which 401's on the webcontentlink url. Note that the https://www.googleapis.com/drive/v2/files/ endpoint responds correctly with the metadata for the uploaded file using the access token that subsequently fails on the download call.
The full html response from either a direct url call (with access_token=) or a servlet call is
<HTML>
<HEAD>
<TITLE>Unauthorized</TITLE>
</HEAD>
<BODY BGCOLOR="#FFFFFF" TEXT="#000000">
<H1>Unauthorized</H1>
<H2>Error 401</H2>
</BODY>
</HTML>
Is there a known issue with offline Google auth on non native files in Drive?
Based on the descriptions of file attributes, you should probably be using the downloadUrl attribute rather than webContentLink.
downloadUrl - Short lived download URL for the file. This is only populated for files with content stored in Drive.
webContentLink - A link for downloading the content of the file in a browser using cookie based authentication. In cases where the content is shared publicly, the content can be downloaded without any credentials.