curl --request POST \
--url https://api.example.com/portal/appointments/{appointmentId}/documents \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: multipart/form-data' \
--form file='@example-file'curl --request POST \
--url https://api.example.com/portal/appointments/{appointmentId}/documents \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: multipart/form-data' \
--form file='@example-file'Bearer authentication header of the form Bearer <token>, where <token> is your auth token.