Create a file upload intent

Send Authorization: Bearer <token> with one of: an app session access token from /auth/verify-otp or /auth/refresh; an OAuth access token from /oauth/token issued for the API origin (its scopes are its permissions); or a personal access token starting with optima_pat_ (see /docs/personal-access-tokens). Personal access tokens cannot create or list tokens, revoke other tokens, sign out, or delete or restore the account. Content routes need the permission of their layer: audio:read/audio:write for recordings, turns:read/turns:write for turns, contacts, source signals, and events, and insights:read/insights:write for suggestions and session summaries; search and recall need turns:read and insights:read. A request without the permission, or for an account whose layer is turned off, returns 403 FORBIDDEN. See /docs/authentication#scopes.

In: header