Bettors can request a custom parlay on SX.Bet by selecting multiple markets. When they submit a parlay request, a message is sent via Websocket (See this link for more details on the request). Once this message is sent, makers will be able to submit orders to this market for upto three seconds.
Market makers can use the payload data from the Parlay Request to submit an order. Market makers have a three second window to post orders. After this point, bettors will be shown all available orders at the same time and no other orders will be viewable by the bettor.
Bettors can choose which order to take and will be able to fill orders like any other non-parlay order.
Market makers can cancel orders like any other non-parlay order.
The parlay order-book that is displayed to a bettor will automatically close after one minute. Your orders may still be active even though the order-book window has closed (the user will not be able to view your order after the window closes).
Parlay Orders will expire just as normal orders do, so please set the apiExpiry on your orders accordingly.
Parlay Markets act as regular markets, but with additional fields to indicate the underlying legs that make up the Parlay.