formatting the clips/stream request.

I've been trying to make a request and i keep getting the error invalid or missing sessio_id, but I copy and paste the id as is into the request. Not sure what part of the i should use. Can someone provide an example of what part of the session_id and sdp string I should use? Also, I am assuming that in https://api.d-id.com/clips/streams/{id}/sdp, the id is the stream id.