Google Drive API: problem accessing Revisions List by using Google Service Account

[diovisgood]

When I read:
https://developers.google.com/drive/api/reference/rest/v3/revisions/list
and try this call right on the page - it works fine. I specify the following fields to retrieve:
fields='nextPageToken, revisions(id, modifiedTime, lastModifyingUser)'

But when I try to perform the same call with a Google Service Account credentials, it responds with a error:

HttpError: <HttpError 400 when requesting https://www.googleapis.com/drive/v3/files/1Exl8BrT_h0iG4qJ20InTyV_XZyeODF7OlfjI5JuBfa8/revisions?pag... returned "Invalid field selection emailAddress". Details: "[{'message': 'Invalid field selection emailAddress', 'domain': 'global', 'reason': 'invalidParameter', 'location': 'fields', 'locationType': 'parameter'}]">

 Does anyone know how to fix this?

Update 1:
Strangely, it works if you change the fields to the following:

fields='nextPageToken, revisions(modifiedTime, lastModifyingUser(displayName, emailAddress))'

Omitting the `id`

Why Google Service Account fails to read the `id` of file revisions?

[lawrencenelson]

Hi @diovisgood,

Welcome to the Google Cloud Community!

It's possible that the Service Account lacks the necessary permissions to retrieve the id. You can try giving the service account an owner role, then run the following code again. 

fields='nextPageToken, revisions(id, modifiedTime, lastModifyingUser)'

(Note: Granting an Owner role to a service account is generally not recommended and should only be done here as a temporary measure for this test.)

I hope this helps. Thank you.