Not necessarily gapi.client.request with the body field.
You can try gapi.client.drive.files.insert({'convert': 'false', 'ocr': 'false','resource': resource}) , where resource is what you want to send, for example
resource = { "title":"testFolder", "description":"hello world", "mimeType":"application/vnd.google-apps.folder" }
I did not check this, but I tried the exact same scenario with sending the request body to create a list of Google tasks (gapi.client.tasks.tasklists.insert)
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