How to set up refresh-token-only OAuth for a multi-tenant Apify Actor (Gmail, 10 minutes) (opens in new tab)

How to set up refresh-token-only OAuth for a multi-tenant Apify Actor (Gmail, 10 minutes) If you're shipping an Apify Actor that calls a per-user Google API (Gmail, Calendar, Drive) and you want the simplest auth model that works for cold strangers, this is the setup. The pattern: the buyer pastes three strings — refresh_token, client_id, client_secret — into the Actor input. The Actor exchanges them for a short-lived access token at runtime, hits the API, exits. No mailbox cache, no per-user...