DeepBook V3: Orders

DeepBook V3 provides a high-performance order execution system. Users can place, modify, and cancel limit or market orders. Orders execute against the central limit order book (CLOB) using price-time priority.

1. Key Concepts

Order Options

When submitting an order, developers can specify order options:

1. GTC (Good 'Til Cancelled) / No Restriction: The order remains active in the book until it is fully filled or manually cancelled.
2. IOC (Immediate Or Cancel): Any portion of the order that cannot be matched immediately is cancelled.
3. FOK (Fill Or Kill): The order must be filled immediately in its entirety, or it is cancelled completely.
4. Post Only: The order is only placed if it behaves as a maker order (adds liquidity). If it would match immediately as a taker order, it is cancelled.