google drive API return insufficient resources

I am now working on a software that can track changes in google drive and get the name of the last modifier of each change. I am doing this by accessing revisions of each file and extract "lastModifyingUser" from revisions resource using google drive API.

However, I found return revisions resource only contain "kind", "id", "mimetype" and "modifiedTime". When I try to use .get('lastModifyingUser'), I got None. Which is pretty confusing. I also tried to use .list(), it still return same result. I'll attach my code below for u guys to check possible issues.

# Call seleted files revisions
revisions = []
for i in range (len(seleted_files_week) - 1):
    try:
        # revisions.append(service.revisions().list(fileId = seleted_files_week[i][3]).execute().get('revisions'))
        revisions.append(service.revisions().get(fileId = seleted_files_week[i][3],revisionId = 1).execute())
    except:
        print("error")

Part of return value I got

[{'kind': 'drive#revision', 'id': '1', 'mimeType': 'application/vnd.google-apps.document', 'modifiedTime': '2018-08-16T06:18:41.664Z'}, {'kind': 'drive#revision', 'id': '1', 'mimeType': 'application/vnd.google-apps.document', 'modifiedTime': '2018-09-05T02:11:35.423Z'}]

• You want to retrieve lastModifyingUser from the file using service.revisions().list().

If my understanding is correct, how about this modification?

Modification point:

• From your question, it seems that you are using Drive API v3. So in order to retrieve lastModifyingUser from the file using service.revisions().list(), it uses revisions/lastModifyingUser as fields.

Modified script:

Please modify as follows.

From:

revisions.append(service.revisions().list(fileId = seleted_files_week[i][3]).execute().get('revisions'))

To:

revisions.append(service.revisions().list(fileId = seleted_files_week[i][3], fields = "revisions/lastModifyingUser").execute().get('revisions'))

Note:

• If you want to also retrieve other metadata, please tell me.

References:

• Revisions
• Revisions: list

If I misunderstand your question, I'm sorry.