API Reference: cancelAskOrder

Cancels an active sell-side (ask) order on a sovereign BetaChain order book and releases the locked Totem balance back to the seller's account unconfirmed balance.

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Endpoint Details

• HTTP Method: POST
• Gateway Path: /nxt
• Content-Type: application/x-www-form-urlencoded
• API Tags: AE, CREATE_TRANSACTION
• Chain Specific: Yes

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Request Parameters

Parameter	Type	Required	Description
requestType	String	Yes	Must be set to cancelAskOrder.
order	long	Yes	Unique 64-bit identifier of the ask order to cancel.
chain	int	Yes	Sovereign BetaChain ID where the order resides.
secretPhrase	String	Yes	Post-Quantum Cryptography (PQC) passphrase of the account that placed the order.
feeNQT	long	Conditional	Transaction execution fee in base units (NQT).
deadline	short	Conditional	Transaction expiration window in minutes (1-1440).

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Example Request

curl -X POST http://localhost:22024/nxt \
  -d "requestType=cancelAskOrder" \
  -d "chain=2" \
  -d "order=88492019481029384" \
  -d "secretPhrase=your_pqc_passphrase" \
  -d "feeNQT=10000000" \
  -d "deadline=60"

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Successful Response

{
  "signatureHash": "a9f8b7c6...",
  "unsignedTransactionBytes": "0100...",
  "transactionJSON": {
    "sender": "1234567890123456789",
    "feeNQT": "10000000",
    "type": 2,
    "subtype": 3,
    "attachment": {
      "version.OrderCancellation": 1,
      "order": "88492019481029384"
    },
    "timestamp": 89234102
  },
  "broadcasted": true,
  "transaction": "98123049120394810"
}

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Error Codes

Error Code	Cause / Description
UNKNOWN_ORDER	Order ID does not exist or does not belong to the requesting sender account.
INSUFFICIENT_FEE	The specified feeNQT is below the network minimum threshold for order cancellation.