Looker API 4.0 /auth endpoint (CORS)

[jeremey_donovan]

Hi,

I’m creating a Google Sheets app for users that makes calls to the Looker API. I’d like them to oath to Looker rather than having to disribute clients IDs & secrets. I believe ths is possible via the 4.0 API as described here. However, this references the /auth endpoint for which no documentation seems to exist either here or elsewhere.  

Does any documentation exist for the /auth endpoint? Or, can someone let me know which of the following paramater are required:

  const params = {
    response_type: 'code',
    client_id: '123456',
    redirect_uri: 'https://mywebapp.com:3000/authenticated',
    scope: 'cors_api',
    state: '1235813',
    code_challenge_method: 'S256',
    code_challenge: code_challenge,
  }