Aster Api Trading V1

Type-specific required: LIMIT → timeInForce, quantity, price. MARKET → quantity. STOP/TAKE_PROFIT → quantity, price, stopPrice. STOP_MARKET/TAKE_PROFIT_MARKET → stopPrice. TRAILING_STOP_MARKET → callbackRate.

Trigger rules: STOP/STOP_MARKET: BUY → latest ≥ stopPrice; SELL → latest ≤ stopPrice. TAKE_PROFIT/TAKE_PROFIT_MARKET: BUY → latest ≤ stopPrice; SELL → latest ≥ stopPrice. TRAILING_STOP_MARKET: BUY → low ≤ activationPrice and latest ≥ low×(1+callbackRate); SELL → high ≥ activationPrice and latest ≤ high×(1-callbackRate). activationPrice: BUY < latest, SELL > latest (else -2021). closePosition=true: close all long (SELL) or short (BUY); no quantity/reduceOnly; hedge: no BUY for LONG / SELL for SHORT.

Batch / Cancel / Countdown / Query

• POST /fapi/v1/batchOrders (W: 5): batchOrders array, max 5; same params as order; responses match order.
• DELETE /fapi/v1/order (W: 1): symbol + orderId or origClientOrderId.
• DELETE /fapi/v1/allOpenOrders (W: 1): symbol.
• DELETE /fapi/v1/batchOrders (W: 1): symbol + orderIdList or origClientOrderIdList (max 10).
• POST /fapi/v1/countdownCancelAll (W: 10): symbol, countdownTime (ms). Cancel all at countdown end; 0 = cancel timer. Heartbeat to extend (e.g. 30s with 120000 ms). Checks ~10 ms.
• GET /fapi/v1/order, openOrder (W: 1): symbol + orderId or origClientOrderId.
• GET /fapi/v1/openOrders (W: 1 or 40): symbol optional; no symbol = all (40).
• GET /fapi/v1/allOrders (W: 5): symbol req.; orderId, startTime, endTime, limit (500 default, 1000 max). Window < 7 days; orderId → orders ≥ that id. CANCELED/EXPIRED >7d with no fills may be missing.

Payload shapes: reference.md.