Skip to main content
The book channel reports every change to a market’s order book. It costs tokens per market and includes lifecycle. Each outcome has its own ladder, a list of resting orders by price. The two ladders show one market from opposite ends. A bid resting at 0.665 on one outcome is liquidity for the other outcome. A taker on the other outcome trades against it at 0.335. A taker is an order that trades against a resting order.
Kansas City Chiefs3f2504e0…01
0.670250
0.665110
0.660250
Buffalo Bills3f2504e0…02
0.34090
0.335180
0.325400
Each outcome’s array lists the best price first. Within a price, it lists the earlier order first. The array order is the queue.

​
Snapshot

Each key in orders is an outcome ID.

​
Delta

Only book reports a cancel. A partial fill arrives as a remove, then an add of the remainder. The add keeps the same price and queue position.

​
Go-live and your own orders

  • At go-live, you get a remove with reason: "cancel" for each resting order, then GOLIVE. See Event states.
  • Your own orders appear here like any other order. Match them on the private stream.