I want to be able to build an Apple Shortcut (app) that uses GET and POST calls to YouTube to download a transcript given a “videoId”. The steps seem to be:

1. Set up an oauth2 app on the google console (redirect uris, etc)…
2. HTTP GET to the google oauth endpoint to receive an auth token
3. Exchange that auth token for an access token
4. Call the API you need with the access token

And everything works when I cal the “captions.list” endpoint but when I try to actually download a transcript, I get a 403 error. Has anyone gotten this to work?