Risk Data StreamStart User Data StreamOn this page Start User Data Stream (USER_STREAM) API Description Start a new user data stream. HTTP Request POST /sapi/v1/margin/listen-key Request Weight(UID) 1 Request Parameters None Response Example { "listenKey": "T3ee22BIYuWqmvne0HNq2A2WsFlEtLhvWCtItw6ffhhd"}