Cancel All Orders

Cancel all open orders for specific market(s) or all markets

Endpoint

POST https://papi.synthetix.io/v1/trade

Request

Request Format

{
  "params": {
    "action": "cancelAllOrders",
    "subAccountId": "1867542890123456789",
    "symbols": ["BTC-USDT", "ETH-USDT"]
  },
  "nonce": 1704067200000,
  "signature": {
    "v": 28,
    "r": "0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef",
    "s": "0xabcdef1234567890abcdef1234567890abcdef1234567890abcdef1234567890"
  },
  "expiresAfter": 1704067300000
}

Request Parameters

:::info Common Parameters These are top-level request parameters. The subAccountId parameter is specified within the params object (see each endpoint's parameter table). :::

Response

Success Response

{
  "status": "ok",
  "response": [
    {
      "orderId": "1958787130134106112",
      "message": "Order cancelled successfully"
    },
    {
      "orderId": "1958787130134106113",
      "message": "Order cancelled successfully"
    }
  ],
  "request_id": "5ccf215d37e3ae6d",
  "timestamp": "2025-01-01T00:00:00Z"
}

Error Response

{
  "status": "error",
  "error": {
    "message": "Failed to unmarshal cancel all orders request",
    "code": "INVALID_FORMAT"
  },
  "request_id": "5ccf215d37e3ae6d",
  "timestamp": "2025-01-01T00:00:00Z"
}

Code Examples

Cancel All Markets

To cancel all orders across all markets, provide an empty symbols array:

{
  "params": {
    "action": "cancelAllOrders",
    "subAccountId": "1867542890123456789",
    "symbols": []
  },
  "nonce": 1704067200000,
  "signature": {
    "v": 28,
    "r": "0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef",
    "s": "0xabcdef1234567890abcdef1234567890abcdef1234567890abcdef1234567890"
  },
  "expiresAfter": 1704067300000
}

Cancel Specific Markets

To cancel orders for specific markets only:

{
  "params": {
    "action": "cancelAllOrders",
    "subAccountId": "1867542890123456789",
    "symbols": ["BTC-USDT", "ETH-USDT"]
  },
  "nonce": 1704067200000,
  "signature": {
    "v": 28,
    "r": "0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef",
    "s": "0xabcdef1234567890abcdef1234567890abcdef1234567890abcdef1234567890"
  },
  "expiresAfter": 1704067300000
}

Cancel Behavior

• Immediate Effect: Orders are cancelled immediately upon validation
• Margin Release: Freed margin becomes available instantly
• Partial Fills: Partially filled orders are cancelled for remaining quantity
• All Order Types: Cancels limit, market, and trigger orders
• Atomic Operation: All specified orders are cancelled together

Implementation Details

The API performs the following steps:

1. Retrieves all open orders for the authenticated subaccount
2. Iterates through each order and attempts to cancel it individually
3. Returns an array of cancellation statuses for each processed order
4. Each successful cancellation includes the orderId in the response

Validation Rules

• nonce must be a timestamp in milliseconds and must be increasing
• symbols array must contain valid market symbols or be empty for all markets
• Market symbols must be valid trading pairs
• Must be signed by account owner or authorized delegate

Signing

All trading methods are signed using EIP-712. Each successful trading request will contain:

• A piece of structured data that includes the sender address
• A signature of the hash of that structured data, signed by the sender

For detailed information on EIP-712 signing, see EIP-712 Signing.

Nonce Management

The nonce system prevents replay attacks and ensures order uniqueness:

• Use current timestamp in milliseconds as nonce
• Each nonce must be greater than the previous one
• Recommended: Use Date.now() or equivalent
• If nonce conflicts occur, increment by 1 and retry

Error Handling

Common error scenarios: