Kana Perps Python REST API

Important Note:

For all the API endpoints below, pass your wallet address as the userAddress parameter.

To track your transactions on-chain (e.g., via Aptos Explorer or Aptos Scan), you must use your profile address, as all on-chain trades are executed using this profile address.

To obtain your profile address, use the /getProfileAddress endpoint and provide your wallet address as the userAddress parameter.

How to Fetch the Profile Address:

Example endpoint: https://perps-tradeapi.kanalabs.io/getProfileAddress?userAddress=0xd01e3a233632a41463bd6d289e99e69e1b50815c7afff710e1c992659a8722f3 Example code: https://docs.kanalabs.io/perpetual-futures/kana-perps/api-docs/kana-perps-python-rest-api#id-20.-get-profile-address

✅ Testnet API Endpoint URL

https://perps-tradeapi.kanalabs.io

✅ Mainnet API Endpoint URL

https://perps-tradeapi.kana.trade

Please ensure that the correct network is used: for Testnet, set NODE_URL = "https://api.testnet.aptoslabs.com/v1" and for Mainnet, set NODE_URL = "https://api.mainnet.aptoslabs.com/v1"

1. Get Market Info

• Endpoint URL: https://perps-tradeapi.kanalabs.io/getMarketInfo

• Method: GET

• Query Parameters:

  • marketId (Required) - The ID of the market you want information about.

Example Request:

GET https://perps-tradeapi.kanalabs.io/getMarketInfo?marketId=501

Example Response:

• Status Code: 200 OK

• Response Body:

{
  "success": true,
  "message": "Market information fetched successfully",
  "data": [
    {
    "__variant__": "V1",
    "base_decimals": 8,
    "base_name": "APT/USDC",
    "counter": "0",
    "creator": "0xb61d7b57333abf8ac036e752f19d0ba0c4baa5404db1cbf868c57dac3628f2bf",
    "custodian_id": "75",
    "fee_address": "0x7724a4a23b25b460abc2a5d9fe1fe3c47e2a0e10a156dd713a221f129579c388",
    "is_recognised": false,
    "lot_size": "100000",
    "maintenance_margin": "250",
    "market_address": "0xcfa0086c26787035de6b4a312875c7a70b2f9a29fa880d0cf633ef3dd0acd2c3",
    "market_id": "1338",
    "market_status": 1,
    "max_leverage": "20",
    "max_lots": "150000000",
    "max_position_value": "125000000",
    "min_lots": "500",
    "quote_decimals": 6,
    "quote_precision": 3,
    "tick_size": "1",
    "timestamp": "1745079291",
    "underwriter_id": "73"
  }
  ]
}

Example Code to Fetch Market Information:

The following Python script demonstrates how to call the Get Market Info API using the requests library.

import requests
import os
from dotenv import load_dotenv
load_dotenv()

def main():
    try:
        base_url = 'https://perps-tradeapi.kanalabs.io/getMarketInfo'
        params = {
            'marketId': 501
        }
        api_key = os.getenv('API_KEY')
        headers = {
            'x-api-key': api_key
        }
        response = requests.get(base_url, params=params, headers=headers)
        response.raise_for_status()
        get_market_info = response.json()
        print("getMarketInfo: ", get_market_info)
    except requests.exceptions.RequestException as error:
        print('An error occurred:', error)

if __name__ == "__main__":
    main()

2. Get Wallet Account Balance

• Endpoint URL: https://perps-tradeapi.kanalabs.io/getWalletAccountBalance
• Method: GET

• Query Parameters:

  • userAddress (Required) - The wallet address for which the account balance is being fetched.

Example Request:

GET https://perps-tradeapi.kanalabs.io/getWalletAccountBalance?userAddress=0x4d6dc68e391e86991e58ab4d548b7e92872430d1f51bc666fe0c206bad7ff770

Example Response:

• Status Code: 200 OK

• Response Body:

{
  "success": true,
  "message": "Fetched wallet account balance successfully",
  "data": 16391.60
}

Example Code to Fetch Wallet Account Balance Information:

The following Python script demonstrates how to call the Get Wallet Account Balance API using the requests library.

import os
import requests
from dotenv import load_dotenv
load_dotenv()

def main():
    try:
        base_url = 'https://perps-tradeapi.kanalabs.io/getWalletAccountBalance'
        params = {
            'userAddress': '0x4d6dc68e391e86991e58ab4d548b7e92872430d1f51bc666fe0c206bad7ff770'
        }
        api_key = os.getenv('API_KEY')
        headers = {
            'x-api-key': api_key
        }
        response = requests.get(base_url, params=params, headers=headers)
        response.raise_for_status()
        get_wallet_account_balance = response.json()
        print("getWalletAccountBalance: ", get_wallet_account_balance)
    except requests.exceptions.RequestException as error:
        print('An error occurred:', error)

if __name__ == "__main__":
    main()

3. Get Profile Balance Snapshot

• Endpoint URL: https://perps-tradeapi.kanalabs.io/getProfileBalanceSnapshot
• Method: GET

• Query Parameters:

  • userAddress (Required) - The wallet address for which the account balance is being fetched.

Example Request:

GET https://perps-tradeapi.kanalabs.io/getProfileBalanceSnapshot?userAddress=0x4d6dc68e391e86991e58ab4d548b7e92872430d1f51bc666fe0c206bad7ff770

Example Response:

• Status Code: 200 OK

• Response Body:

{
  "success": true,
  "message": "Profile balance snapshot fetched successfully",
  "data": 44.321972
}

Example Code to Fetch Trading Account Balance Information:

The following Python script demonstrates how to call the Get Trading Account Balance API using the requests library.

import os
import requests
from dotenv import load_dotenv
load_dotenv()

def main():
    try:
        base_url = 'https://perps-tradeapi.kanalabs.io/getProfileBalanceSnapshot'
        params = {
            'userAddress': '0x4d6dc68e391e86991e58ab4d548b7e92872430d1f51bc666fe0c206bad7ff770'
        }
        api_key = os.getenv('API_KEY')
        headers = {
            'x-api-key': api_key
        }
        response = requests.get(base_url, params=params, headers=headers)
        response.raise_for_status()
        get_trading_account_balance = response.json()
        print("getTradingAccountBalance: ", get_trading_account_balance)
    except requests.exceptions.RequestException as error:
        print('An error occurred:', error)

if __name__ == "__main__":
    main()

4. Deposit

• Endpoint URL: https://perps-tradeapi.kanalabs.io/deposit
• Method: GET

• Query Parameters:

  • amount (Required) - The amount of the quote coin to deposit.

  • userAddress (Required) - The address of the user making the deposit.

Example Request:

GET https://perps-tradeapi.kanalabs.io/deposit?userAddress=0x4d6dc68e391e86991e58ab4d548b7e92872430d1f51bc666fe0c206bad7ff770&amount=50000000

Example Response:

• Status Code: 200 OK

• Response Body:

{
  "success": true,
  "message": "Deposit payload has been built successfully",
  "data": {
    "function": "0xabbf40e0c31cbedf182f3e6e9c3570f3f91629424723da876becb514bf5d9fc6::perpetual_scripts::deposit",
    "functionArguments": [
      "0x4d6dc68e391e86991e58ab4d548b7e92872430d1f51bc666fe0c206bad7ff770",
      50000000
    ],
    "typeArguments": []
  }
}

Example Code to Depsoit a quote coin:

The following Python script demonstrates how to call the Get Deposit API using the requests library.

import asyncio
import os
from aptos_sdk.account import Account
from aptos_sdk.async_client import RestClient
from aptos_sdk.transactions import EntryFunction, TransactionArgument, TransactionPayload
from aptos_sdk.bcs import Serializer
from aptos_sdk.account_address import AccountAddress  # Import this
from aptos_sdk.type_tag import TypeTag, StructTag
import requests
from dotenv import load_dotenv
from typing import Any, List
load_dotenv()

class AptosTransactionHandler:
    
    def __init__(self, rest_client: RestClient, account: Account):
        self.rest_client = rest_client
        self.account = account

    def fetch_payload(self, api_url, params, headers):
        try:
            response = requests.get(api_url, params=params, headers=headers)
            response.raise_for_status()
            return response.json().get("data")
        except requests.exceptions.RequestException as e:
            print(f"Error fetching payload: {e}")
            return None

    def create_transaction_function_arguments(self, arguments: List[Any], types: List[Serializer]) -> List[TransactionArgument]:
        if len(arguments) != len(types):
            raise ValueError("Arguments and types length mismatch.")
        
        return [TransactionArgument(arg, serializer) for arg, serializer in zip(arguments, types)]

    def create_transaction_payload(self, payload: dict) -> TransactionPayload:
        try:
            function_information = payload["function"].split("::")
            module = "::".join(function_information[:-1])
            function_id = function_information[-1]
            function_arguments = self.create_transaction_function_arguments(
                payload["functionArguments"],
                payload["argumentTypes"]
            )
            type_arguments = [TypeTag(StructTag.from_str(argument)) for argument in payload["typeArguments"]]
            entry_function = EntryFunction.natural(
                module=module,
                function=function_id,
                ty_args=type_arguments,
                args=function_arguments,
            )
            return TransactionPayload(payload=entry_function)
        except Exception as e:
            print(f"Error creating transaction payload: {e}")
            raise

    async def submit_transaction(self, transaction_payload: TransactionPayload) -> str:
        try:
            signed_transaction_request = await self.rest_client.create_bcs_signed_transaction(
                sender=self.account, payload=transaction_payload
            )
            txn_hash = await self.rest_client.submit_bcs_transaction(
                signed_transaction=signed_transaction_request
            )
            await self.rest_client.wait_for_transaction(txn_hash=txn_hash)
            return txn_hash
        except Exception as e:
            print(f"Error during transaction submission: {e}")
            raise

async def main():
    NODE_URL = "https://api.testnet.aptoslabs.com/v1"
    rest_client = RestClient(NODE_URL)
    private_key_hex = os.getenv('APTOS_PRIVATEKEY')
    if private_key_hex.startswith("0x"):
        private_key_hex = private_key_hex[2:]
    private_key_bytes = bytes.fromhex(private_key_hex)
    account = Account.load_key(private_key_bytes)
    API_URL = "https://perps-tradeapi.kanalabs.io/deposit"
    PARAMS = {
        "userAddress":"0x4d6dc68e391e86991e58ab4d548b7e92872430d1f51bc666fe0c206bad7ff770",
        "amount": 50
    }
    HEADERS = {"x-api-key": os.getenv('API_KEY')}
    handler = AptosTransactionHandler(rest_client, account)
    payload_data = handler.fetch_payload(API_URL, PARAMS, HEADERS)
    
    if not payload_data:
        print("Failed to fetch payload data.")
        return
    
    try:
        payload_data["functionArguments"] = [
            AccountAddress.from_str(payload_data["functionArguments"][0]),  
            int(payload_data["functionArguments"][1]),
        ]
        payload_data["argumentTypes"] = [Serializer.struct, Serializer.u64]
        transaction_payload = handler.create_transaction_payload(payload_data)
        print("Transaction payload created successfully.")
        txn_hash = await handler.submit_transaction(transaction_payload)
        print(f"Transaction submitted successfully. Transaction hash: {txn_hash}")
        
    except Exception as e:
        print(f"Error during transaction process: {e}")

if __name__ == "__main__":
    asyncio.run(main())

5. Withdraw Specific Market

• Endpoint URL: https://perps-tradeapi.kanalabs.io/withdrawSpecifiMarket
• Method: GET

• Query Parameters:

  • marketId (Required) - The ID of the market you want to withdraw.

  • amount (Required) - The amount of the quote coin to withdraw.

  • userAddress (Required) - The address of the user making the withdraw.

Example Request:

GET https://perps-tradeapi.kanalabs.io/withdrawSpecifiMarket?marketId=501&userAddress=0x4d6dc68e391e86991e58ab4d548b7e92872430d1f51bc666fe0c206bad7ff770&amount=50

Example Response:

• Status Code: 200 OK

• Response Body:

{
  "success": true,
  "message": "Withdraw specific market payload has been built successfully",
  "data": {
    "function": "0xabbf40e0c31cbedf182f3e6e9c3570f3f91629424723da876becb514bf5d9fc6::perpetual_scripts::withdraw_specific_market",
    "functionArguments": [
      "0x4d6dc68e391e86991e58ab4d548b7e92872430d1f51bc666fe0c206bad7ff770",
      "501",
      50000000
    ],
    "typeArguments": []
  }
}

Example Code to Withdraw a quote coin:

The following Python script demonstrates how to call the Get Withdraw API using the requests library.

import asyncio
import os
from aptos_sdk.account import Account
from aptos_sdk.async_client import RestClient
from aptos_sdk.transactions import EntryFunction, TransactionArgument, TransactionPayload
from aptos_sdk.bcs import Serializer
from aptos_sdk.account_address import AccountAddress  # Import this
from aptos_sdk.type_tag import TypeTag, StructTag
import requests
from dotenv import load_dotenv
from typing import Any, List
load_dotenv()

class AptosTransactionHandler:
    
    def __init__(self, rest_client: RestClient, account: Account):
        self.rest_client = rest_client
        self.account = account

    def fetch_payload(self, api_url, params, headers):
        try:
            response = requests.get(api_url, params=params, headers=headers)
            response.raise_for_status()
            return response.json().get("data")
        except requests.exceptions.RequestException as e:
            print(f"Error fetching payload: {e}")
            return None

    def create_transaction_function_arguments(self, arguments: List[Any], types: List[Serializer]) -> List[TransactionArgument]:
        if len(arguments) != len(types):
            raise ValueError("Arguments and types length mismatch.")
        
        return [TransactionArgument(arg, serializer) for arg, serializer in zip(arguments, types)]

    def create_transaction_payload(self, payload: dict) -> TransactionPayload:
        try:
            function_information = payload["function"].split("::")
            module = "::".join(function_information[:-1])
            function_id = function_information[-1]
            function_arguments = self.create_transaction_function_arguments(
                payload["functionArguments"],
                payload["argumentTypes"]
            )
            type_arguments = [TypeTag(StructTag.from_str(argument)) for argument in payload["typeArguments"]]
            entry_function = EntryFunction.natural(
                module=module,
                function=function_id,
                ty_args=type_arguments,
                args=function_arguments,
            )
            return TransactionPayload(payload=entry_function)
        except Exception as e:
            print(f"Error creating transaction payload: {e}")
            raise

    async def submit_transaction(self, transaction_payload: TransactionPayload) -> str:
        try:
            signed_transaction_request = await self.rest_client.create_bcs_signed_transaction(
                sender=self.account, payload=transaction_payload
            )
            txn_hash = await self.rest_client.submit_bcs_transaction(
                signed_transaction=signed_transaction_request
            )
            await self.rest_client.wait_for_transaction(txn_hash=txn_hash)
            return txn_hash
        except Exception as e:
            print(f"Error during transaction submission: {e}")
            raise

async def main():
    NODE_URL = "https://api.testnet.aptoslabs.com/v1"
    rest_client = RestClient(NODE_URL)
    private_key_hex = os.getenv('APTOS_PRIVATEKEY')
    if private_key_hex.startswith("0x"):
        private_key_hex = private_key_hex[2:]
    private_key_bytes = bytes.fromhex(private_key_hex)
    account = Account.load_key(private_key_bytes)
    API_URL = "https://perps-tradeapi.kanalabs.io/withdrawSpecifiMarket"
    PARAMS = {
        "userAddress": "0x4d6dc68e391e86991e58ab4d548b7e92872430d1f51bc666fe0c206bad7ff770",
        "marketId": 501,
        "amount": 50
    }
    HEADERS = {"x-api-key": os.getenv('API_KEY')}
    handler = AptosTransactionHandler(rest_client, account)
    payload_data = handler.fetch_payload(API_URL, PARAMS, HEADERS)
    
    if not payload_data:
        print("Failed to fetch payload data.")
        return
    
    try:
        payload_data["functionArguments"] = [
            AccountAddress.from_str(payload_data["functionArguments"][0]),  
            int(payload_data["functionArguments"][1]),
            int(payload_data["functionArguments"][1]),
        ]
        payload_data["argumentTypes"] = [Serializer.struct, Serializer.u64, Serializer.u64]
        transaction_payload = handler.create_transaction_payload(payload_data)
        print("Transaction payload created successfully.")
        txn_hash = await handler.submit_transaction(transaction_payload)
        print(f"Transaction submitted successfully. Transaction hash: {txn_hash}")
        
    except Exception as e:
        print(f"Error during transaction process: {e}")

if __name__ == "__main__":
    asyncio.run(main())

6. Place Limit Order

• Endpoint URL: https://perps-tradeapi.kanalabs.io/placeLimitOrder
• Method: GET

• Query Parameters:

  • marketId (Required) - The ID of the market where the limit order will be placed.

  • tradeSide (Required) - Indicates the trade side:

    • true for the long side.

    • false for the short side.

  • direction (Required) - Indicates the direction of the trade:

    • false to open a position.

    • true to close a position.

  • size (Required) - The size of the order.

  • price (Required) - The price at which the order is to be placed.

  • leverage (Required) - The leverage to be used for the order.

  • restriction - Specifies the type of order restriction. It is an optional parameter with a default value of 0. Possible values are:

    • 0 - NO_RESTRICTION: Optionally fill as a taker, then post to the book as a maker.

    • 1 - FILL_OR_ABORT: Abort if any size posts as a maker (only fill).

    • 3 - POST_OR_ABORT: Abort if any size fills as a taker (only post).

    • If restriction is not provided, it defaults to 0. It can either be a number or left undefined.

  • takeProfit - The take profit value is optional. If not provided, it defaults to 0. It can either be a number or left undefined.

  • stopLoss - The stop loss value is also optional. If not provided, it defaults to 0. It can either be a number or left undefined.

Example Request:

GET https://perps-tradeapi.kanalabs.io/placeLimitOrder/?marketId=501&tradeSide=true&direction=false&size=10000&price=3000&leverage=3

Example Response:

• Status Code: 200 OK

• Response Body:

{
  "success": true,
  "message": "Limit Order payload has been built successfully",
  "data": {
    "function": "0xabbf40e0c31cbedf182f3e6e9c3570f3f91629424723da876becb514bf5d9fc6::perpetual_scripts::place_limit_order",
    "functionArguments": [
      "501",
      "true",
      "false",
      1000000,
      8000000,
      "5",
      0,
      0,
      0
    ],
    "typeArguments": []
  }
}

Example Code to Place a limit order:

The following Python script demonstrates how to call the Get Place Limit Order API using the requests library.

import asyncio
import os
import requests
from dotenv import load_dotenv
from typing import List
from aptos_sdk.account import Account
from aptos_sdk.async_client import RestClient
from aptos_sdk.transactions import EntryFunction, TransactionArgument, TransactionPayload
from aptos_sdk.bcs import Serializer
from aptos_sdk.type_tag import TypeTag, StructTag

load_dotenv()

class AptosTransactionHandler:
    def __init__(self, rest_client: RestClient, account: Account):
        self.rest_client = rest_client
        self.account = account

    def fetch_payload(self, api_url, params, headers):
        try:
            response = requests.get(api_url, params=params, headers=headers)
            response.raise_for_status()
            return response.json().get("data")
        except requests.RequestException as e:
            print(f"Error fetching payload: {e}")
            return None

    def create_transaction_function_arguments(self, arguments: List, types: List[Serializer]) -> List[TransactionArgument]:
        if len(arguments) != len(types):
            raise ValueError("Arguments and types length mismatch.")
        return [TransactionArgument(arg, serializer) for arg, serializer in zip(arguments, types)]

    def create_transaction_payload(self, payload: dict) -> TransactionPayload:
        try:
            module, function_id = "::".join(payload["function"].split("::")[:-1]), payload["function"].split("::")[-1]
            function_arguments = self.create_transaction_function_arguments(payload["functionArguments"], payload["argumentTypes"])
            type_arguments = [TypeTag(StructTag.from_str(argument)) for argument in payload["typeArguments"]]
            
            entry_function = EntryFunction.natural(module=module, function=function_id, ty_args=type_arguments, args=function_arguments)
            return TransactionPayload(payload=entry_function)
        except Exception as e:
            print(f"Error creating transaction payload: {e}")
            raise

    async def submit_transaction(self, transaction_payload: TransactionPayload) -> str:
        try:
            signed_transaction = await self.rest_client.create_bcs_signed_transaction(self.account, transaction_payload)
            txn_hash = await self.rest_client.submit_bcs_transaction(signed_transaction)
            await self.rest_client.wait_for_transaction(txn_hash)
            return txn_hash
        except Exception as e:
            print(f"Error during transaction submission: {e}")
            raise

async def main():
    NODE_URL = "https://api.testnet.aptoslabs.com/v1"
    private_key_hex = os.getenv('APTOS_PRIVATEKEY')

    if not private_key_hex:
        print("Error: APTOS_PRIVATEKEY is missing in .env file.")
        return

    account = Account.load_key(bytes.fromhex(private_key_hex[2:] if private_key_hex.startswith("0x") else private_key_hex))
    rest_client = RestClient(NODE_URL)

    API_URL = "https://perps-tradeapi.kanalabs.io/placeLimitOrder"
    PARAMS = {"marketId": 501, "tradeSide": True, "direction": False, "size": 2, "price": 7, "leverage": 2}
    HEADERS = {"x-api-key": os.getenv('API_KEY')}

    handler = AptosTransactionHandler(rest_client, account)
    payload_data = handler.fetch_payload(API_URL, PARAMS, HEADERS)

    if not payload_data:
        print("Failed to fetch payload data.")
        return

    try:
        payload_data["functionArguments"] = [
            int(payload_data["functionArguments"][0]),
            payload_data["functionArguments"][1].lower() == "true",
            payload_data["functionArguments"][2].lower() == "true",
            *map(int, payload_data["functionArguments"][3:])
        ]

        payload_data["argumentTypes"] = [
            Serializer.u64, Serializer.bool, Serializer.bool, Serializer.u64,
            Serializer.u64, Serializer.u64, Serializer.u8, Serializer.u64, Serializer.u64
        ]

        transaction_payload = handler.create_transaction_payload(payload_data)
        print("Transaction payload created successfully.")
        txn_hash = await handler.submit_transaction(transaction_payload)
        print(f"Transaction submitted successfully. Hash: {txn_hash}")

    except Exception as e:
        print(f"Transaction process error: {e}")

if __name__ == "__main__":
    asyncio.run(main())

7. Place Market Order

• Endpoint URL: https://perps-tradeapi.kanalabs.io/placeMarketOrder
• Method: GET

• Query Parameters:

  • marketId (Required) - The ID of the market where the limit order will be placed.

  • tradeSide (Required) - Indicates the trade side:

    • true for the long side.

    • false for the short side.

  • direction (Required) - Indicates the direction of the trade:

    • false to open a position.

    • true to close a position.

  • size (Required) - The size of the order.

  • leverage (Required) - The leverage to be used for the order.

  • takeProfit - The take profit value is optional. If not provided, it defaults to 0. It can either be a number or left undefined.

  • stopLoss - The stop loss value is also optional. If not provided, it defaults to 0. It can either be a number or left undefined.

Example Request:

GET https://perps-tradeapi.kanalabs.io/placeMarketOrder?marketId=66&tradeSide=false&direction=true&size=1000&leverage=20

Example Response:

• Status Code: 200 OK

• Response Body:

{
  "success": true,
  "message": "Market Order payload has been built successfully",
  "data": {
    "function": "0xabbf40e0c31cbedf182f3e6e9c3570f3f91629424723da876becb514bf5d9fc6::perpetual_scripts::place_market_order",
    "functionArguments": [
      "501",
      "true",
      "false",
      1000000,
      "5",
      0,
      0
    ],
    "typeArguments": []
  }
}

Example Code to Place a market order:

The following Python script demonstrates how to call the Get Place Market Order API using the requests library.

import asyncio
import os
import requests
from aptos_sdk.account import Account
from aptos_sdk.async_client import RestClient
from aptos_sdk.transactions import EntryFunction, TransactionArgument, TransactionPayload
from aptos_sdk.bcs import Serializer
from aptos_sdk.type_tag import TypeTag, StructTag
from dotenv import load_dotenv
from typing import List

load_dotenv()

class AptosTransactionHandler:
    def __init__(self, rest_client: RestClient, account: Account):
        self.rest_client = rest_client
        self.account = account

    def fetch_payload(self, api_url: str, params: dict, headers: dict) -> dict | None:
        try:
            response = requests.get(api_url, params=params, headers=headers)
            response.raise_for_status()
            return response.json().get("data")
        except requests.RequestException as e:
            print(f"Error fetching payload: {e}")
            return None

    def create_transaction_payload(self, payload: dict) -> TransactionPayload:
        try:
            module, function_id = "::".join(payload["function"].split("::")[:-1]), payload["function"].split("::")[-1]
            type_arguments = [TypeTag(StructTag.from_str(arg)) for arg in payload["typeArguments"]]
            function_arguments = [TransactionArgument(arg, serializer) for arg, serializer in zip(payload["functionArguments"], payload["argumentTypes"])]

            return TransactionPayload(payload=EntryFunction.natural(module, function_id, type_arguments, function_arguments))
        except Exception as e:
            print(f"Error creating transaction payload: {e}")
            raise

    async def submit_transaction(self, transaction_payload: TransactionPayload) -> str:
        try:
            signed_txn = await self.rest_client.create_bcs_signed_transaction(sender=self.account, payload=transaction_payload)
            txn_hash = await self.rest_client.submit_bcs_transaction(signed_transaction=signed_txn)
            await self.rest_client.wait_for_transaction(txn_hash)
            return txn_hash
        except Exception as e:
            print(f"Error during transaction submission: {e}")
            raise

async def main():
    NODE_URL = "https://api.testnet.aptoslabs.com/v1"
    API_URL = "https://perps-tradeapi.kanalabs.io/placeMarketOrder"
    HEADERS = {"x-api-key": os.getenv('API_KEY')}
    PARAMS = {"marketId": 501, "tradeSide": True, "direction": False, "size": 2, "leverage": 2}

    rest_client = RestClient(NODE_URL)
    private_key = os.getenv('APTOS_PRIVATEKEY', "").lstrip("0x")
    
    if not private_key:
        print("Error: APTOS_PRIVATEKEY is missing in .env file.")
        return

    account = Account.load_key(bytes.fromhex(private_key))
    handler = AptosTransactionHandler(rest_client, account)
    
    payload_data = handler.fetch_payload(API_URL, PARAMS, HEADERS)
    if not payload_data:
        print("Failed to fetch payload data.")
        return

    try:
        payload_data["functionArguments"] = [
            int(payload_data["functionArguments"][0]),
            payload_data["functionArguments"][1].lower() == "true",
            payload_data["functionArguments"][2].lower() == "true",
            *map(int, payload_data["functionArguments"][3:])
        ]

        payload_data["argumentTypes"] = [Serializer.u64, Serializer.bool, Serializer.bool] + [Serializer.u64] * (len(payload_data["functionArguments"]) - 3)

        transaction_payload = handler.create_transaction_payload(payload_data)
        print("Transaction payload created successfully.")

        txn_hash = await handler.submit_transaction(transaction_payload)
        print(f"Transaction submitted successfully. Hash: {txn_hash}")

    except Exception as e:
        print(f"Error during transaction process: {e}")

if __name__ == "__main__":
    asyncio.run(main())

8. Cancel Multiple Orders

• Endpoint URL: htps://perps-tradeapi.kanalabs.io/cancelMultipleOrders
• Method: POST

• Request Body:

  • marketId: The ID of the market for which the orders will be canceled.

  • cancelOrderIds: A list of order IDs to cancel.

  • orderSides: The sides of the orders to cancel (true for long, false for short).

Example Request:

{
  "marketId": 501,
  "cancelOrderIds": ["1077898597726583798162207", "1077880153515406921884445"],
  "orderSides": [true, false]
}

Example Response:

• Status Code: 200 OK

• Response Body:

{
  "success": true,
  "message": "Cancel Multiple Orders payload has been built successfully",
  "data": {
    "function": "0xabbf40e0c31cbedf182f3e6e9c3570f3f91629424723da876becb514bf5d9fc6::perpetual_scripts::cancel_multiple_orders",
    "functionArguments": [
      501,
      [
        "1077898597726583798162207",
        "1077880153515406921884445"
      ],
      [
        true,
        false
      ]
    ],
    "typeArguments": []
  }
}

Example Code to Cancel multiple orders:

The following Python script demonstrates how to call the Post Cancel Multiple Orders API using the requests library.

import asyncio
import os
from aptos_sdk.account import Account
from aptos_sdk.async_client import RestClient
from aptos_sdk.transactions import EntryFunction, TransactionArgument, TransactionPayload
from aptos_sdk.bcs import Serializer
from aptos_sdk.type_tag import TypeTag, StructTag
import requests
from dotenv import load_dotenv
from typing import Any, List

load_dotenv()

class AptosTransactionHandler:
    
    def __init__(self, rest_client: RestClient, account: Account):
        self.rest_client = rest_client
        self.account = account

    def fetch_payload(self, api_url, json_data, headers):
        try:
            response = requests.post(api_url, json=json_data, headers=headers)
            response.raise_for_status()
            payload_data = response.json().get("data")
            if payload_data is None:
                print("No data returned from API.")
                return {}

            # Convert order ID from float to integer
            payload_data["functionArguments"][1] = [int(x) for x in payload_data["functionArguments"][1]]

            return payload_data
        except requests.exceptions.RequestException as e:
            print(f"Error fetching payload: {e}")
            return None

    def create_transaction_function_arguments(self, arguments: List[Any], types: List[Serializer]) -> List[TransactionArgument]:
        if len(arguments) != len(types):
            raise ValueError("Arguments and types length mismatch.")
        
        try:
            return [TransactionArgument(arg, serializer) for arg, serializer in zip(arguments, types)]
        except Exception as e:
            print(f"Error creating transaction arguments: {e}")
            raise

    def create_transaction_payload(self, payload: dict) -> TransactionPayload:
        try:
            function_information = payload["function"].split("::")
            module = "::".join(function_information[:-1])
            function_id = function_information[-1]
            function_arguments = self.create_transaction_function_arguments(
                payload["functionArguments"],
                payload["argumentTypes"]
            )
            type_arguments = [TypeTag(StructTag.from_str(argument)) for argument in payload["typeArguments"]]
            entry_function = EntryFunction.natural(
                module=module,
                function=function_id,
                ty_args=type_arguments,
                args=function_arguments,
            )
            return TransactionPayload(payload=entry_function)
        except Exception as e:
            print(f"Error creating transaction payload: {e}")
            raise

    async def submit_transaction(self, transaction_payload: TransactionPayload) -> str:
        try:
            signed_transaction_request = await self.rest_client.create_bcs_signed_transaction(
                sender=self.account, payload=transaction_payload
            )
            txn_hash = await self.rest_client.submit_bcs_transaction(
                signed_transaction=signed_transaction_request
            )
            await self.rest_client.wait_for_transaction(txn_hash=txn_hash)
            return txn_hash
        except Exception as e:
            print(f"Error during transaction submission: {e}")
            raise

async def main():
    NODE_URL = "https://api.testnet.aptoslabs.com/v1"
    rest_client = RestClient(NODE_URL)
    private_key_hex = os.getenv('APTOS_PRIVATEKEY')
    if private_key_hex.startswith("0x"):
        private_key_hex = private_key_hex[2:]
    private_key_bytes = bytes.fromhex(private_key_hex)
    account = Account.load_key(private_key_bytes)
    
    API_URL = "https://perps-tradeapi.kanalabs.io/cancelMultipleOrders"
    BODY = {
        "marketId": 501,
        "cancelOrderIds": ["85722020555623231393816"], # pls ensure cancelOrderIds given in string
        "orderSides": [True]
    }
    HEADERS = {"x-api-key": os.getenv('API_KEY')}
    handler = AptosTransactionHandler(rest_client, account)
    payload_data = handler.fetch_payload(API_URL, BODY, HEADERS)
    if not payload_data:
        print("Failed to fetch payload data.")
        return
    
    try:
        payload_data["argumentTypes"] = [
            Serializer.u64,
            Serializer.sequence_serializer(Serializer.u128),
            Serializer.sequence_serializer(Serializer.bool)
        ]
        transaction_payload = handler.create_transaction_payload(payload_data)
        print("Transaction payload created successfully.")
        txn_hash = await handler.submit_transaction(transaction_payload)
        print(f"Transaction submitted successfully. Transaction hash: {txn_hash}")
        
    except Exception as e:
        print(f"Error during transaction process: {e}")

if __name__ == "__main__":
    asyncio.run(main())

8. Place Multiple Orders

• Endpoint URL: https://perps-tradeapi.kanalabs.io/placeMultipleOrders
• Method: POST

Request Body :

• marketId (Required) - The ID of the market where the orders will be placed.

• orderTypes (Required) - An array of order types for each order:

  • true for limit orders.

  • false for market orders.

• tradeSides (Required) - An array indicating the trade sides for each order:

  • true for long positions.

  • false for short positions.

• directions (Required) - An array indicating the direction of each trade:

  • false to open a position.

  • true to close a position.

• sizes (Required) - An array of sizes for each order.

• leverages (Required) - An array of leverages for each order.

• prices (Required) - An array of prices at which each order is to be placed.

• restriction - Specifies the type of order restriction. It is an optional parameter with a default value of 0. Possible values are:

  • 0 - NO_RESTRICTION: Optionally fill as a taker, then post to the book as a maker.

  • 1 - FILL_OR_ABORT: Abort if any size posts as a maker (only fill).

  • 3 - POST_OR_ABORT: Abort if any size fills as a taker (only post).

  • If restriction is not provided, it defaults to 0. It can either be a number or left undefined.

• takeProfits - The take profit value is optional. If not provided, it defaults to 0. It can either be a number or left undefined.

• stopLosses - The stop loss value is also optional. If not provided, it defaults to 0. It can either be a number or left undefined.

Example Request:

{
  "marketId": 501,
  "orderTypes": [true, true],
  "tradeSides": [true, true],
  "directions": [true, true],
  "sizes": [1000, 1000],
  "prices": [1000, 1000],
  "leverages": [2, 2]
}

Example Response:

• Status Code: 200 OK

• Response Body:

{
  "success": true,
  "message": "Multiple Orders payload has been built successfully",
  "data": {
    "function": "0xabbf40e0c31cbedf182f3e6e9c3570f3f91629424723da876becb514bf5d9fc6::perpetual_scripts::place_multiple_orders",
    "functionArguments": [
      501,
      [
        true,
        true
      ],
      [
        true,
        true
      ],
      [
        true,
        true
      ],
      [
        1000,
        1000
      ],
      [
        4670,
        6780
      ],
      [
        2,
        2
      ],
      [
        0,
        0
      ],
      [
        4600
      ],
      [
        0,
        0
      ]
    ],
    "typeArguments": []
  }
}

Example Code to Place a multiple orders:

The following Python script demonstrates how to call the Get Place Multiple Orders API using the requests library.

import asyncio
import os
from aptos_sdk.account import Account
from aptos_sdk.async_client import RestClient
from aptos_sdk.transactions import EntryFunction, TransactionArgument, TransactionPayload
from aptos_sdk.bcs import Serializer
from aptos_sdk.type_tag import TypeTag, StructTag
import requests
from dotenv import load_dotenv
from typing import Any, List

load_dotenv()

class AptosTransactionHandler:
    
    def __init__(self, rest_client: RestClient, account: Account):
        self.rest_client = rest_client
        self.account = account

    def fetch_payload(self, api_url: str, json_data: dict, headers: dict) -> dict:
     try:
        response = requests.post(api_url, json=json_data, headers=headers)
        response.raise_for_status()
        payload_data = response.json().get("data")
        if payload_data is None:
            print("No data returned from API.")
            return {}
        # Dynamically ensure the length matches the sizes provided
        payload_data["takeProfits"] = payload_data.get("takeProfits", [0] * len(json_data["sizes"]))
        payload_data["stopLosses"] = payload_data.get("stopLosses", [0] * len(json_data["sizes"]))
        payload_data["restrictions"] = payload_data.get("restrictions", [0] * len(json_data["sizes"]))
        return payload_data
     except requests.exceptions.RequestException as e:
        print(f"Error fetching payload: {e}")
        return {}

    def create_transaction_function_arguments(self, arguments: List[Any], types: List[Serializer]) -> List[TransactionArgument]:
        if len(arguments) != len(types):
            raise ValueError("Arguments and types length mismatch.")
        
        try:
            return [TransactionArgument(arg, serializer) for arg, serializer in zip(arguments, types)]
        except Exception as e:
            print(f"Error creating transaction arguments: {e}")
            raise

    def create_transaction_payload(self, payload: dict) -> TransactionPayload:
        try:
            function_information = payload["function"].split("::")
            module = "::".join(function_information[:-1])
            function_id = function_information[-1]
            function_arguments = self.create_transaction_function_arguments(
                payload["functionArguments"],
                payload["argumentTypes"]
            )
            type_arguments = [TypeTag(StructTag.from_str(argument)) for argument in payload["typeArguments"]]
            entry_function = EntryFunction.natural(
                module=module,
                function=function_id,
                ty_args=type_arguments,
                args=function_arguments,
            )
            return TransactionPayload(payload=entry_function)
        except Exception as e:
            print(f"Error creating transaction payload: {e}")
            raise

    async def submit_transaction(self, transaction_payload: TransactionPayload) -> str:
        try:
            signed_transaction_request = await self.rest_client.create_bcs_signed_transaction(
                sender=self.account, payload=transaction_payload
            )
            txn_hash = await self.rest_client.submit_bcs_transaction(
                signed_transaction=signed_transaction_request
            )
            await self.rest_client.wait_for_transaction(txn_hash=txn_hash)
            return txn_hash
        except Exception as e:
            print(f"Error during transaction submission: {e}")
            raise

async def main():
    NODE_URL = "https://api.testnet.aptoslabs.com/v1"
    rest_client = RestClient(NODE_URL)
    private_key_hex = os.getenv('APTOS_PRIVATEKEY')
    if private_key_hex.startswith("0x"):
        private_key_hex = private_key_hex[2:]
    private_key_bytes = bytes.fromhex(private_key_hex)
    account = Account.load_key(private_key_bytes)
    API_URL = "https://perps-tradeapi.kanalabs.io/placeMultipleOrders"
    BODY = {
        "marketId": 501,
        "orderTypes": [True],
        "tradeSides": [True],
        "directions": [False],
        "sizes": [1.9],
        "prices": [4.12],
        "leverages": [2]
    }
    HEADERS = {"x-api-key": os.getenv('API_KEY')}
    handler = AptosTransactionHandler(rest_client, account)
    payload_data = handler.fetch_payload(API_URL, BODY, HEADERS)
    if not payload_data:
        print("Failed to fetch payload data.")
        return
    
    try:
        payload_data["argumentTypes"] = [
            Serializer.u64,
            Serializer.sequence_serializer(Serializer.bool),
            Serializer.sequence_serializer(Serializer.bool),
            Serializer.sequence_serializer(Serializer.bool),
            Serializer.sequence_serializer(Serializer.u64),
            Serializer.sequence_serializer(Serializer.u64),
            Serializer.sequence_serializer(Serializer.u64),
            Serializer.sequence_serializer(Serializer.u8),
            Serializer.sequence_serializer(Serializer.u64),
            Serializer.sequence_serializer(Serializer.u64)
        ]
        transaction_payload = handler.create_transaction_payload(payload_data)
        print("Transaction payload created successfully.")
        txn_hash = await handler.submit_transaction(transaction_payload)
        print(f"Transaction submitted successfully. Transaction hash: {txn_hash}")
        
    except Exception as e:
        print(f"Error during transaction process: {e}")

if __name__ == "__main__":
    asyncio.run(main())

9. Cancel and Place Multiple Orders

• Endpoint URL: https://perps-tradeapi.kanalabs.io/cancelAndPlaceMultipleOrders
• Method: POST

Request Body :

• marketId (Required) - The ID of the market where the orders will be placed.

• cancelOrderIds (Required) - An array of strings representing the IDs of the orders to be canceled.

• orderSides (Required) - An array indicating the sides of the orders being canceled:

  • true for long sides.

  • false for short sides.

• orderTypes (Required) - An array of order types for each order:

  • true for limit orders.

  • false for market orders.

• tradeSides (Required) - An array indicating the trade sides for each order:

  • true for long positions.

  • false for short positions.

• directions (Required) - An array indicating the direction of each trade:

  • false to open a position.

  • true to close a position.

• sizes (Required) - An array of sizes for each order.

• leverages (Required) - An array of leverages for each order.

• prices (Required) - An array of prices at which each order is to be placed.

• restriction - Specifies the type of order restriction. It is an optional parameter with a default value of 0. Possible values are:

  • 0 - NO_RESTRICTION: Optionally fill as a taker, then post to the book as a maker.

  • 1 - FILL_OR_ABORT: Abort if any size posts as a maker (only fill).

  • 3 - POST_OR_ABORT: Abort if any size fills as a taker (only post).

  • If restriction is not provided, it defaults to 0. It can either be a number or left undefined

• takeProfits - The take profit value is optional. If not provided, it defaults to 0. It can either be a number or left undefined.

• stopLosses - The stop loss value is also optional. If not provided, it defaults to 0. It can either be a number or left undefined.

Example Request:

{
  "marketId": 501,
  "cancelOrderIds": ["23434565434567", "454345665456"],
  "orderSides": [true, true],
  "orderTypes": [true, true],
  "tradeSides": [true, false],
  "directions": [true, true],
  "sizes": [1000, 2000],
  "prices": [5000, 6000],
  "leverages": [2, 2]
}

Example Response:

• Status Code: 200 OK

• Response Body:

{
  "success": true,
  "message": "Cancel and place multiple Orders payload has been built successfully",
  "data": {
    "function": "0xabbf40e0c31cbedf182f3e6e9c3570f3f91629424723da876becb514bf5d9fc6::perpetual_scripts::cancel_and_place_multiple_orders",
    "functionArguments": [
      501,
      [
        "23434565434567",
        "454345665456"
      ],
      [
        "true",
        "true"
      ],
      [
        true,
        true
      ],
      [
        true,
        false
      ],
      [
        true,
        true
      ],
      [
        1000,
        2000
      ],
      [
        5000,
        6000
      ],
      [
        2,
        2
      ],
      [
        0,
        0
      ],
      [
        0,
        0
      ],
      [
        0,
        0
      ]
    ],
    "typeArguments": []
  }
}

Example Code to cancel and Place a multiple orders:

The following TypeScript/Node.js script demonstrates how to call the Get Cancel And Place Multiple Orders API using the axios library.

import asyncio
import os
from aptos_sdk.account import Account
from aptos_sdk.async_client import RestClient
from aptos_sdk.transactions import EntryFunction, TransactionArgument, TransactionPayload
from aptos_sdk.bcs import Serializer
from aptos_sdk.type_tag import TypeTag, StructTag
import requests
from dotenv import load_dotenv
from typing import Any, List

load_dotenv()

class AptosTransactionHandler:
    
    def __init__(self, rest_client: RestClient, account: Account):
        self.rest_client = rest_client
        self.account = account

    def fetch_payload(self, api_url: str, json_data: dict, headers: dict) -> dict:
        try:
            response = requests.post(api_url, json=json_data, headers=headers)
            response.raise_for_status()
            payload_data = response.json().get("data")
            if payload_data is None:
                print("No data returned from API.")
                return {}

            # Ensure correct integer representation for order IDs
            payload_data["takeProfits"] = payload_data.get("takeProfits", [0] * len(json_data["sizes"]))
            payload_data["stopLosses"] = payload_data.get("stopLosses", [0] * len(json_data["sizes"]))
            payload_data["restrictions"] = payload_data.get("restrictions", [0] * len(json_data["sizes"]))

            # Convert order ID lists from float to integer
            payload_data["functionArguments"][1] = [int(x) for x in payload_data["functionArguments"][1]]

            return payload_data
        except requests.exceptions.RequestException as e:
            print(f"Error fetching payload: {e}")
            return {}

    def create_transaction_function_arguments(self, arguments: List[Any], types: List[Serializer]) -> List[TransactionArgument]:
        if len(arguments) != len(types):
            raise ValueError("Arguments and types length mismatch.")
        
        try:
            return [TransactionArgument(arg, serializer) for arg, serializer in zip(arguments, types)]
        except Exception as e:
            print(f"Error creating transaction arguments: {e}")
            raise

    def create_transaction_payload(self, payload: dict) -> TransactionPayload:
        try:
            function_information = payload["function"].split("::")
            module = "::".join(function_information[:-1])
            function_id = function_information[-1]

            if "argumentTypes" not in payload:
                raise KeyError("'argumentTypes' missing in payload.")

            function_arguments = self.create_transaction_function_arguments(
                payload["functionArguments"],
                payload["argumentTypes"]
            )

            type_arguments = [TypeTag(StructTag.from_str(argument)) for argument in payload["typeArguments"]]

            entry_function = EntryFunction.natural(
                module=module,
                function=function_id,
                ty_args=type_arguments,
                args=function_arguments,
            )
            return TransactionPayload(payload=entry_function)
        except Exception as e:
            print(f"Error creating transaction payload: {e}")
            raise

    async def submit_transaction(self, transaction_payload: TransactionPayload) -> str:
        try:
            signed_transaction_request = await self.rest_client.create_bcs_signed_transaction(
                sender=self.account, payload=transaction_payload
            )
            txn_hash = await self.rest_client.submit_bcs_transaction(
                signed_transaction=signed_transaction_request
            )
            await self.rest_client.wait_for_transaction(txn_hash=txn_hash)
            return txn_hash
        except Exception as e:
            print(f"Error during transaction submission: {e}")
            raise

async def main():
    NODE_URL = "https://api.testnet.aptoslabs.com/v1"
    rest_client = RestClient(NODE_URL)
    
    private_key_hex = os.getenv('APTOS_PRIVATEKEY')
    if private_key_hex.startswith("0x"):
        private_key_hex = private_key_hex[2:]
    
    private_key_bytes = bytes.fromhex(private_key_hex)
    account = Account.load_key(private_key_bytes)

    API_URL = "https://perps-tradeapi.kanalabs.io/cancelAndPlaceMultipleOrders"
    BODY = {
        "marketId": 501,
        "cancelOrderIds": ["45877054622524009092208"],  # Ensure orderId given as string
        "orderSides": [True],
        "orderTypes": [True],
        "tradeSides": [True],
        "directions": [False],
        "sizes": [1.8],
        "prices": [7.6868],
        "leverages": [2]
    }
    
    HEADERS = {"x-api-key": os.getenv('API_KEY')}
    handler = AptosTransactionHandler(rest_client, account)
    
    payload_data = handler.fetch_payload(API_URL, BODY, HEADERS)
    print("Before payload:", payload_data)

    if not payload_data:
        print("Failed to fetch payload data.")
        return

    # Ensure argumentTypes is included in payload_data
    payload_data["argumentTypes"] = [
        Serializer.u64,  # marketId
        Serializer.sequence_serializer(Serializer.u128),
        Serializer.sequence_serializer(Serializer.bool),
        Serializer.sequence_serializer(Serializer.bool),  # orderTypes
        Serializer.sequence_serializer(Serializer.bool),  # tradeSides
        Serializer.sequence_serializer(Serializer.bool),  # directions
        Serializer.sequence_serializer(Serializer.u64),  # sizes
        Serializer.sequence_serializer(Serializer.u64),  # prices
        Serializer.sequence_serializer(Serializer.u64),  # leverages
        Serializer.sequence_serializer(Serializer.u8),  # restrictions
        Serializer.sequence_serializer(Serializer.u64),  # takeProfits
        Serializer.sequence_serializer(Serializer.u64),  # stopLosses
    ]

    try:
        print("After payload:", payload_data)
        transaction_payload = handler.create_transaction_payload(payload_data)
        print("Transaction payload created successfully.")
        
        txn_hash = await handler.submit_transaction(transaction_payload)
        print(f"Transaction submitted successfully. Transaction hash: {txn_hash}")
    
    except Exception as e:
        print(f"Error during transaction process: {e}")

if __name__ == "__main__":
    asyncio.run(main())

10. Get Open Orders

• Endpoint URL: https://perps-tradeapi.kanalabs.io/getOpenOrders
• Method: GET

• Query Parameters:

  • userAddress (Required) - The wallet address to retrieve open orders for.

  • marketId - The ID of the market to filter open orders. // Optional

Note : order_type Explanation:

OPEN_LONG (1): Opens a new long position.
OPEN_SHORT (2): Opens a new short position.
INCREASE_LONG (3): Increases the size of an existing long position.
INCREASE_SHORT (4): Increases the size of an existing short position.
DECREASE_LONG (5): Reduces the size of an existing long position.
DECREASE_SHORT (6): Reduces the size of an existing short position.
CLOSE_LONG (7): Closes an existing long position.
CLOSE_SHORT (8): Closes an existing short position.

Example Request:

GET https://perps-tradeapi.kanalabs.io/getOpenOrders?userAddress=0x4d6dc68e391e86991e58ab4d548b7e92872430d1f51bc666fe0c206bad7ff770&marketId=66

Example Response:

• Status Code: 200 OK

• Response Body:

{
  "success": true,
  "message": "Fetched open orders successfully",
  "data": [
    {
      "address": "0x3c78886aa67752706b3502b12959edf92e68d85ae64b24226783d26ce6efc1e",
      "market_id": "501",
      "leverage": 2,
      "order_type": 3,
      "timestamp": 1741444213,
      "price": "7",
      "total_size": "2",
      "remaining_size": "2",
      "order_value": "14",
      "order_id": "645636324063400958808",
      "trade_id": "295147905179352826357",
      "last_updated": 1741444214,
      "transaction_version": 6703807706
    },
    {
      "address": "0x3c78886aa67752706b3502b12959edf92e68d85ae64b24226783d26ce6efc1e",
      "market_id": "501",
      "leverage": 2,
      "order_type": 3,
      "timestamp": 1741445758,
      "price": "7",
      "total_size": "2",
      "remaining_size": "2",
      "order_value": "14",
      "order_id": "682529812245179800408",
      "trade_id": "295147905179352826357",
      "last_updated": 1741445758,
      "transaction_version": 6703807706
    }
  ]
}

Example Code to Fetch Open Orders:

The following Python script demonstrates how to call the Get Open Orders API using the requests library.

import os
import requests
from dotenv import load_dotenv

load_dotenv()

def main():
    try:
        base_url = 'https://perps-tradeapi.kanalabs.io/getOpenOrders'
        params = {
            'marketId': 501,
            'userAddress': "0x4d6dc68e391e86991e58ab4d548b7e92872430d1f51bc666fe0c206bad7ff770"
        }
        api_key = os.getenv('API_KEY')
        headers = {
            'x-api-key': api_key
        }
        response = requests.get(base_url, params=params, headers=headers)
        response.raise_for_status()
        get_open_orders = response.json()
        print("getOpenOrders: ", get_open_orders)
    except requests.exceptions.RequestException as error:
        print('An error occurred:', error)

if __name__ == "__main__":
    main()

11. Get Order History

• Endpoint URL: https://perps-tradeapi.kanalabs.io/getOrderHistory
• Method: GET

• Query Parameters:

  • userAddress (Required) - The wallet address to retrieve the order history for.

  • marketId (optional) - The ID of the market to filter the order history.

Example Request:

GET https://perps-tradeapi.kanalabs.io/getOrderHistory?userAddress=0x4d6dc68e391e86991e58ab4d548b7e92872430d1f51bc666fe0c206bad7ff770&marketId=66

Example Response:

• Status Code: 200 OK

• Response Body:

{
  "success": true,
  "message": "Fetched order history successfully",
  "data": [
    {
      "address": "0x3c78886aa67752706b3502b12959edf92e68d85ae64b24226783d26ce6efc1e",
      "market_id": "501",
      "leverage": 2,
      "order_type": 1,
      "timestamp": 1741167151,
      "is_market_order": false,
      "size": "1.50",
      "price": "4.678",
      "order_value": "7.01700",
      "status": "Open",
      "order_id": "18446884819787846214",
      "trade_id": "18446744073709552117",
      "last_updated": 1741262093,
      "transaction_version": 6703807706
    },
    {
      "address": "0x3c78886aa67752706b3502b12959edf92e68d85ae64b24226783d26ce6efc1e",
      "market_id": "501",
      "leverage": 2,
      "order_type": 1,
      "timestamp": 1741236277,
      "is_market_order": false,
      "size": "1.50",
      "price": "4.678",
      "order_value": "7.01700",
      "status": "Cancelled",
      "order_id": "18446884819787846214",
      "trade_id": "18446744073709552117",
      "last_updated": 1741262168,
      "transaction_version": 6703807706
    },
    {
      "address": "0x3c78886aa67752706b3502b12959edf92e68d85ae64b24226783d26ce6efc1e",
      "market_id": "501",
      "leverage": 2,
      "order_type": 1,
      "timestamp": 1741236468,
      "is_market_order": false,
      "size": "1.50",
      "price": "4.50",
      "order_value": "6.7500",
      "status": "Open",
      "order_id": "36893628893497397652",
      "trade_id": "36893488147419103733",
      "last_updated": 1741262168,
      "transaction_version": 6703807706
    }
  }
]

Example Code to Fetch Order History:

The following Python script demonstrates how to call the Get Order History API using the requests library.

import os
import requests
from dotenv import load_dotenv

load_dotenv()

def main():
    try:
        base_url = 'https://perps-tradeapi.kanalabs.io/getOrderHistory'
        params = {
            'marketId': 501,
            'userAddress': "0x4d6dc68e391e86991e58ab4d548b7e92872430d1f51bc666fe0c206bad7ff770"
        }
        api_key = os.getenv('API_KEY')
        headers = {
            'x-api-key': api_key
        }
        response = requests.get(base_url, params=params, headers=headers)
        response.raise_for_status()
        get_order_history = response.json()
        print("getOrderHistory: ", get_order_history)
    except requests.exceptions.RequestException as error:
        print('An error occurred:', error)

if __name__ == "__main__":
    main()

12. Get Positions

• Endpoint URL: https://perps-tradeapi.kanalabs.io/getPositions
• Method: GET

• Query Parameters:

  • userAddress (Required) - The wallet address of the user to view positions for.

  • marketId (optional) - The ID of the market to filter the positions.

Example Request:

GET https://perps-tradeapi.kanalabs.io/getPositions?marketId=66&userAddress=0x2eda5777ed2bf68cbcc67359dd00ae5fa73b1d5fa160b7c3aeb42d748d485387

Example Response:

• Status Code: 200 OK

• Response Body:

{
  "success": true,
  "message": "Fetched positions successfully",
  "data": [
    {
      "address": "0x3c78886aa67752706b3502b12959edf92e68d85ae64b24226783d26ce6efc1e",
      "market_id": "501",
      "leverage": 2,
      "trade_side": true,
      "size": "1",
      "available_order_size": "1",
      "value": "5.678",
      "entry_price": "5.678",
      "liq_price": "2.9117948717948717990163355253",
      "margin": "2.839",
      "tp": "6.012",
      "sl": null,
      "trade_id": "295147905179352826357",
      "last_updated": 1741262185,
      "transaction_version": 6703807706
    }
  ]
}

Example Code to Fetch Open Position:

The following Python script demonstrates how to call the Get Open Position API using the requests library.

import os
import requests
from dotenv import load_dotenv

load_dotenv()

def main():
    try:
        base_url = 'https://perps-tradeapi.kanalabs.io/getPositions'
        params = {
            'marketId': 501,
            'userAddress': "0x4d6dc68e391e86991e58ab4d548b7e92872430d1f51bc666fe0c206bad7ff770"
        }
        api_key = os.getenv('API_KEY')
        headers = {
            'x-api-key': api_key
        }
        response = requests.get(base_url, params=params, headers=headers)
        response.raise_for_status()
        get_open_position = response.json()
        print("getOpenPosition: ", get_open_position)
    except requests.exceptions.RequestException as error:
        print('An error occurred:', error)

if __name__ == "__main__":
    main()

13. Get Order Status By Order Id

• Endpoint URL: https://perps-tradeapi.kanalabs.io/getOrderStatusByOrderId
• Method: GET

• Query Parameters:

  • marketId (Required) - The ID of the market associated with the order.

  • orderId (Required) - The unique identifier of the order to retrieve its status.

Example Request:

GET https://perps-tradeapi.kanalabs.io/getOrderStatusByOrderId?marketId=66&orderId=15308325717473050761363456

Example Response:

• Status Code: 200 OK

• Response Body:

{
  "status": true,
  "message": "Fetched order status for a given order Id successfully",
  "data": {
    "market_id": 66,
    "order_id": "15308325717473050761363456",
    "created_at": "2024-11-20T11:54:45.957059+00:00",
    "last_updated_at": "2024-11-20T11:54:45.957059+00:00",
    "integrator": "0xee820ab02631dd1a195d3c53fa64f0a8f455dbb9261388e141c3bd3bd3c08363",
    "total_filled": 1000,
    "remaining_size": 0,
    "order_status": "closed",
    "order_type": "market",
    "user": "0x4d6dc68e391e86991e58ab4d548b7e92872430d1f51bc666fe0c206bad7ff770",
    "direction": "buy",
    "price": 0,
    "average_execution_price": 12813,
    "custodian_id": 28,
    "self_match_behavior": 0,
    "restriction": 0,
    "last_increase_stamp": null,
    "min_base": null,
    "max_base": null,
    "min_quote": null,
    "max_quote": null,
    "total_fees_paid_in_quote_subunits": 6406
  }
}

Example Code to Fetch Order Status B Order Id:

The following Python script demonstrates how to call the Get Order Status By Order Id API using the requests library.

import os
import requests
from dotenv import load_dotenv

load_dotenv()

def main():
    try:
        base_url = 'https://perps-tradeapi.kanalabs.io/getOrderStatusByOrderId'
        params = {
            'marketId': 501,
            'orderId': '85703575078023708283016'
        }
        api_key = os.getenv('API_KEY')
        headers = {
            'x-api-key': api_key
        }
        response = requests.get(base_url, params=params, headers=headers)
        response.raise_for_status()
        get_order_status_by_order_id = response.json()
        print("getOrderStatusByOrderId: ", get_order_status_by_order_id)
    except requests.exceptions.RequestException as error:
        print('An error occurred:', error)

if __name__ == "__main__":
    main()

14. Get Fills

Note: For the getFills endpoint, you must pass the profile address, not the wallet address. Please make sure to first call the Get Profile Address endpoint and use that returned address as the address parameter in the getFills request.

• Endpoint URL: https://perps-tradeapi.kanalabs.io/getFills
• Method: GET

• Query Parameters:

  • marketId (Required) - The ID of the market for which fills are retrieved.

  • address (Optional) - The address of the user to filter fills (if applicable).

  • from (Required) - The start time of the range in ISO 8601 format (e.g., 2024-11-21T00:00:00Z).

  • to (Required) - The end time of the range in ISO 8601 format (e.g., 2024-11-21T23:59:59Z).

  • orderId (Required) - The unique identifier of the order to retrieve its status.

Example Request:

GET https://perps-tradeapi.kanalabs.io/getFills?marketId=66&address=0x3a6b332c7889784fe57ea61f507b5056e386db8f56c6323b4d898485f468f0c2&from=2024-11-20T00:00:00Z&to=2024-11-21T23:59:59Z

Example Response:

• Status Code: 200 OK

• Response Body:

{
  "success": true,
  "message": "Fetched fill trades for a given time range Successfully",
  "data": [
    {
      "txn_version": 6296434935,
      "event_idx": 1,
      "emit_address": "0x3a6b332c7889784fe57ea61f507b5056e386db8f56c6323b4d898485f468f0c2",
      "time": "2024-11-20T19:23:14.67535+00:00",
      "maker_address": "0x2eda5777ed2bf68cbcc67359dd00ae5fa73b1d5fa160b7c3aeb42d748d485387",
      "maker_custodian_id": 28,
      "maker_order_id": "15891335065048614061485282",
      "maker_side": true,
      "market_id": 66,
      "price": 11490,
      "sequence_number_for_trade": 0,
      "size": 1000,
      "taker_address": "0x3a6b332c7889784fe57ea61f507b5056e386db8f56c6323b4d898485f468f0c2",
      "taker_custodian_id": 28,
      "taker_order_id": "15891427297643009687945216",
      "taker_quote_fees_paid": 5745
    },
    {
      "txn_version": 6295302625,
      "event_idx": 4,
      "emit_address": "0x3a6b332c7889784fe57ea61f507b5056e386db8f56c6323b4d898485f468f0c2",
      "time": "2024-11-20T18:19:35.70863+00:00",
      "maker_address": "0x2eda5777ed2bf68cbcc67359dd00ae5fa73b1d5fa160b7c3aeb42d748d485387",
      "maker_custodian_id": 28,
      "maker_order_id": "15812401447297883953966476",
      "maker_side": false,
      "market_id": 66,
      "price": 11660,
      "sequence_number_for_trade": 0,
      "size": 1000,
      "taker_address": "0x3a6b332c7889784fe57ea61f507b5056e386db8f56c6323b4d898485f468f0c2",
      "taker_custodian_id": 28,
      "taker_order_id": "15812549019983827645235200",
      "taker_quote_fees_paid": 5830
    }
  ]
}

Example Code to Fetch Order Status B Order IdFills Data:

The following Python script demonstrates how to call the Get Fills Data API using the requests library.

import os
import requests
from dotenv import load_dotenv

load_dotenv()

def main():
    try:
        base_url = 'https://perps-tradeapi.kanalabs.io/getFills'
        params = {
            'marketId': 'your_market_id',
            'address': 'your_address',
            'from': 'your_from_time',
            'to': 'your_to_time'
        }
        api_key = os.getenv('API_KEY')
        headers = {
            'x-api-key': api_key
        }
        response = requests.get(base_url, params=params, headers=headers)
        response.raise_for_status()
        get_fills_data = response.json()
        print("getFillsData: ", get_fills_data)
    except requests.exceptions.RequestException as error:
        print('An error occurred:', error)

if __name__ == "__main__":
    main()

14. Get Market Price

• Endpoint URL: https://perps-tradeapi.kanalabs.io/getMarketPrice
• Method: GET

• Query Parameters:

  • marketId (Required) - The ID of the market for which the price information is being retrieved.

Example Request:

GET https://perps-tradeapi.kanalabs.io/getMarketPrice?marketId=66

Example Response:

• Status Code: 200 OK

• Response Body:

{
  "success": true,
  "message": "Fetched Market Price Successfully",
  "data": {
    "bestAskPrice": 6.400,
    "bestBidPrice": 9.880
  }
}

Example Code to Fetch Market Price:

The following Python script demonstrates how to call the Get Market Price API using the requests library.

import os
import requests
from dotenv import load_dotenv

load_dotenv()

def main():
    try:
        base_url = 'https://perps-tradeapi.kanalabs.io/getMarketPrice'
        params = {
            'marketId': 501
        }
        api_key = os.getenv('API_KEY')
        headers = {
            'x-api-key': api_key
        }
        response = requests.get(base_url, params=params, headers=headers)
        response.raise_for_status()
        get_market_price = response.json()
        print("getMarketPrice: ", get_market_price)
    except requests.exceptions.RequestException as error:
        print('An error occurred:', error)

if __name__ == "__main__":
    main()

15. Get Last Execution Price

• Endpoint URL: https://perps-tradeapi.kanalabs.io/getLastPlacedPrice
• Method: GET

• Query Parameters:

  • marketId (Required) - The ID of the market for which the last execution price information is being retrieved.

Example Request:

GET https://perps-tradeapi.kanalabs.io/getLastPlacedPrice?marketId=66

Example Response:

• Status Code: 200 OK

• Response Body:

{
  "success": true,
  "message": "Fetched last execution price Successfully",
  "data": 8.989
}

Example Code to Fetch Last Execution Price:

The following Python script demonstrates how to call the Get Last Execution Price API using the requests library.

import os
import requests
from dotenv import load_dotenv

load_dotenv()

def main():
    try:
        base_url = 'https://perps-tradeapi.kanalabs.io/getLastPlacedPrice'
        params = {
            'marketId': 501
        }
        api_key = os.getenv('API_KEY')
        headers = {
            'x-api-key': api_key
        }
        response = requests.get(base_url, params=params, headers=headers)
        response.raise_for_status()
        get_last_execution_price = response.json()
        print("getLastExecutionPrice: ", get_last_execution_price)
    except requests.exceptions.RequestException as error:
        print('An error occurred:', error)

if __name__ == "__main__":
    main()

16. Get All Open Order Ids

• Endpoint URL: https://perps-tradeapi.kanalabs.io/getAllOpenOrderIds
• Method: GET

• Query Parameters:

  • userAddress(Required) - The address associated with the orders.

  • marketId (optional) - The ID of the market for which open order IDs are being retrieved.

Example Request:

GET https://perps-tradeapi.kanalabs.io/getAllOpenOrderIds?marketId=66&userAddress=0x3a6b332c7889784fe57ea61f507b5056e386db8f56c6323b4d898485f468f0c2

Example Response:

• Status Code: 200 OK

• Response Body:

{
  "success": true,
  "message": "Open order IDs fetched successfully",
  "data": [
    "645636324063400958808",
    "682529812245179800408",
    "700976556301709482840",
    "719423300401188838232",
    "737869903703050289159",
    "756316647793939709959"
  ]
}

Example Code to Fetch Open Order Ids:

The following Python script demonstrates how to call the Get Open Order Ids API using the requests library.

import os
import requests
from dotenv import load_dotenv

load_dotenv()

def main():
    try:
        base_url = 'https://perps-tradeapi.kanalabs.io/getAllOpenOrderIds'
        params = {
            'userAddress': '0x4d6dc68e391e86991e58ab4d548b7e92872430d1f51bc666fe0c206bad7ff770',
            'marketId': 501
        }
        api_key = os.getenv('API_KEY')
        headers = {
            'x-api-key': api_key
        }
        response = requests.get(base_url, params=params, headers=headers)
        response.raise_for_status()
        get_open_order_ids = response.json()
        print("getOpenOrderIds: ", get_open_order_ids)
    except requests.exceptions.RequestException as error:
        print('An error occurred:', error)

if __name__ == "__main__":
    main()

17. Update Take Profit

• Endpoint URL: https://perps-tradeapi.kanalabs.io/updateTakeProfit
• Method: GET

• Query Parameters:

  • marketId (Required) - The ID of the market for which the take profit values will be updated.

  • tradeSide (Required) - The trade side:

    • true for the long side.

    • false for the short side.

  • newTakeProfitPrice (Required) - The new take profit price to be set for the trade.

Example Request:

GET https://perps-tradeapi.kanalabs.io/updateTakeProfit?marketId=66&tradeSide=true&newTakeProfitPrice=6000

Example Response:

• Status Code: 200 OK

• Response Body:

{
  "success": true,
  "message": "Update take profit payload built succesfully",
  "data": {
    "function": "0xabbf40e0c31cbedf182f3e6e9c3570f3f91629424723da876becb514bf5d9fc6::perpetual_scripts::update_take_profit",
    "functionArguments": [
      "501",
      "true",
      7590
    ],
    "typeArguments": []
  }
}

Example Code to Update take profit price:

The following Python script demonstrates how to call the Get Update Take Profit Price API using the requests library.

import asyncio
import os
from aptos_sdk.account import Account
from aptos_sdk.async_client import RestClient
from aptos_sdk.transactions import EntryFunction, TransactionArgument, TransactionPayload
from aptos_sdk.bcs import Serializer
from aptos_sdk.type_tag import TypeTag, StructTag
import requests
from dotenv import load_dotenv
from typing import Any, List
load_dotenv()

class AptosTransactionHandler:
    
    def __init__(self, rest_client: RestClient, account: Account):
        self.rest_client = rest_client
        self.account = account

    def fetch_payload(self, api_url, params, headers):
        try:
            response = requests.get(api_url, params=params, headers=headers)
            response.raise_for_status()
            return response.json().get("data")
        except requests.exceptions.RequestException as e:
            print(f"Error fetching payload: {e}")
            return None

    def create_transaction_function_arguments(self, arguments: List[Any], types: List[Serializer]) -> List[TransactionArgument]:
        if len(arguments) != len(types):
            raise ValueError("Arguments and types length mismatch.")
        
        return [TransactionArgument(arg, serializer) for arg, serializer in zip(arguments, types)]

    def create_transaction_payload(self, payload: dict) -> TransactionPayload:
        try:
            function_information = payload["function"].split("::")
            module = "::".join(function_information[:-1])
            function_id = function_information[-1]
            function_arguments = self.create_transaction_function_arguments(
                payload["functionArguments"],
                payload["argumentTypes"]
            )
            type_arguments = [TypeTag(StructTag.from_str(argument)) for argument in payload["typeArguments"]]
            entry_function = EntryFunction.natural(
                module=module,
                function=function_id,
                ty_args=type_arguments,
                args=function_arguments,
            )
            return TransactionPayload(payload=entry_function)
        except Exception as e:
            print(f"Error creating transaction payload: {e}")
            raise

    async def submit_transaction(self, transaction_payload: TransactionPayload) -> str:
        try:
            signed_transaction_request = await self.rest_client.create_bcs_signed_transaction(
                sender=self.account, payload=transaction_payload
            )
            txn_hash = await self.rest_client.submit_bcs_transaction(
                signed_transaction=signed_transaction_request
            )
            await self.rest_client.wait_for_transaction(txn_hash=txn_hash)
            return txn_hash
        except Exception as e:
            print(f"Error during transaction submission: {e}")
            raise

async def main():
    NODE_URL = "https://api.testnet.aptoslabs.com/v1"
    rest_client = RestClient(NODE_URL)
    private_key_hex = os.getenv('APTOS_PRIVATEKEY')
    if private_key_hex.startswith("0x"):
        private_key_hex = private_key_hex[2:]
    private_key_bytes = bytes.fromhex(private_key_hex)
    account = Account.load_key(private_key_bytes)
    API_URL = "https://perps-tradeapi.kanalabs.io/updateTakeProfit"
    PARAMS = {
        "marketId": 501,
        "tradeSide": True,
        "newTakeProfitPrice": 6.89
    }
    HEADERS = {"x-api-key": os.getenv('API_KEY')}
    handler = AptosTransactionHandler(rest_client, account)
    payload_data = handler.fetch_payload(API_URL, PARAMS, HEADERS)
    
    if not payload_data:
        print("Failed to fetch payload data.")
        return
    
    try:
        payload_data["functionArguments"] = [
            int(payload_data["functionArguments"][0]),
            payload_data["functionArguments"][1].lower() == "true",
            int(payload_data["functionArguments"][2]),
        ]
        payload_data["argumentTypes"] = [Serializer.u64, Serializer.bool, Serializer.u64]
        transaction_payload = handler.create_transaction_payload(payload_data)
        print("Transaction payload created successfully.")
        txn_hash = await handler.submit_transaction(transaction_payload)
        print(f"Transaction submitted successfully. Transaction hash: {txn_hash}")
        
    except Exception as e:
        print(f"Error during transaction process: {e}")

if __name__ == "__main__":
    asyncio.run(main())

18. Get Account Aptos Balance

• Endpoint URL: https://perps-tradeapi.kanalabs.io/getAccountAptBalance
• Method: GET

• Query Parameters:

• userAddress (Required) - The address of the account whose balance will be

Example Request:

GET https://perps-tradeapi.kanalabs.io/getAccountAptBalance?userAddress=0x4d6dc68e391e86991e58ab4d548b7e92872430d1f51bc666fe0c206bad7ff770

Example Response:

• Status Code: 200 OK

• Response Body:

{
  "success": true,
  "message": "Fetched Account Apt Balance Successfully",
  "data": 8.2344617
}

Example Code to Fetch Wallet Account Aptos Balance Information:

The following Python script demonstrates how to call the Get Wallet Account Aptos Balance API using the requests library.

import os
import requests
from dotenv import load_dotenv

load_dotenv()

def main():
    try:
        base_url = 'https://perps-tradeapi.kanalabs.io/getAccountAptBalance'
        params = {
            'userAddress': '0x4d6dc68e391e86991e58ab4d548b7e92872430d1f51bc666fe0c206bad7ff770'
        }
        api_key = os.getenv('API_KEY')
        headers = {
            'x-api-key': api_key
        }
        response = requests.get(base_url, params=params, headers=headers)
        response.raise_for_status()
        get_wallet_account_aptos_balance = response.json()
        print("getWalletAccountAptosBalance: ", get_wallet_account_aptos_balance)
    except requests.exceptions.RequestException as error:
        print('An error occurred:', error)

if __name__ == "__main__":
    main()

19. Update Stop Loss

• Endpoint URL: https://perps-tradeapi.kanalabs.io/updateStopLoss
• Method: GET

• Query Parameters:

  • marketId (Required) - The ID of the market for which the take profit values will be updated.

  • tradeSide (Required) - The trade side:

    • true for the long side.

    • false for the short side.

  • newStopLossPrice (Required) - The new stop loss price to be set for the trade.

Example Request:

GET https://perps-tradeapi.kanalabs.io/updateStopLoss?marketId=66&tradeSide=true&newStopLossPrice=6000

Example Response:

• Status Code: 200 OK

• Response Body:

{
  "success": true,
  "message": "Update stop loss payload built succesfully",
  "data": {
    "function": "0xabbf40e0c31cbedf182f3e6e9c3570f3f91629424723da876becb514bf5d9fc6::perpetual_scripts::update_stop_loss",
    "functionArguments": [
      "501",
      "true",
      7590
    ],
    "typeArguments": []
  }
}

Example Code to Update stop loss price:

The following Python script demonstrates how to call the Get Update Stop Loss Price API using the requests library.

import asyncio
import os
from aptos_sdk.account import Account
from aptos_sdk.async_client import RestClient
from aptos_sdk.transactions import EntryFunction, TransactionArgument, TransactionPayload
from aptos_sdk.bcs import Serializer
from aptos_sdk.type_tag import TypeTag, StructTag
import requests
from dotenv import load_dotenv
from typing import Any, List
load_dotenv()

class AptosTransactionHandler:
    
    def __init__(self, rest_client: RestClient, account: Account):
        self.rest_client = rest_client
        self.account = account

    def fetch_payload(self, api_url, params, headers):
        try:
            response = requests.get(api_url, params=params, headers=headers)
            response.raise_for_status()
            return response.json().get("data")
        except requests.exceptions.RequestException as e:
            print(f"Error fetching payload: {e}")
            return None

    def create_transaction_function_arguments(self, arguments: List[Any], types: List[Serializer]) -> List[TransactionArgument]:
        if len(arguments) != len(types):
            raise ValueError("Arguments and types length mismatch.")
        
        return [TransactionArgument(arg, serializer) for arg, serializer in zip(arguments, types)]

    def create_transaction_payload(self, payload: dict) -> TransactionPayload:
        try:
            function_information = payload["function"].split("::")
            module = "::".join(function_information[:-1])
            function_id = function_information[-1]
            function_arguments = self.create_transaction_function_arguments(
                payload["functionArguments"],
                payload["argumentTypes"]
            )
            type_arguments = [TypeTag(StructTag.from_str(argument)) for argument in payload["typeArguments"]]
            entry_function = EntryFunction.natural(
                module=module,
                function=function_id,
                ty_args=type_arguments,
                args=function_arguments,
            )
            return TransactionPayload(payload=entry_function)
        except Exception as e:
            print(f"Error creating transaction payload: {e}")
            raise

    async def submit_transaction(self, transaction_payload: TransactionPayload) -> str:
        try:
            signed_transaction_request = await self.rest_client.create_bcs_signed_transaction(
                sender=self.account, payload=transaction_payload
            )
            txn_hash = await self.rest_client.submit_bcs_transaction(
                signed_transaction=signed_transaction_request
            )
            await self.rest_client.wait_for_transaction(txn_hash=txn_hash)
            return txn_hash
        except Exception as e:
            print(f"Error during transaction submission: {e}")
            raise

async def main():
    NODE_URL = "https://api.testnet.aptoslabs.com/v1"
    rest_client = RestClient(NODE_URL)
    private_key_hex = os.getenv('APTOS_PRIVATEKEY')
    if private_key_hex.startswith("0x"):
        private_key_hex = private_key_hex[2:]
    private_key_bytes = bytes.fromhex(private_key_hex)
    account = Account.load_key(private_key_bytes)
    API_URL = "https://perps-tradeapi.kanalabs.io/updateStopLoss"
    PARAMS = {
        "marketId": 501,
        "tradeSide": True,
        "newStopLossPrice": 6.89
    }
    HEADERS = {"x-api-key": os.getenv('API_KEY')}
    handler = AptosTransactionHandler(rest_client, account)
    payload_data = handler.fetch_payload(API_URL, PARAMS, HEADERS)
    
    if not payload_data:
        print("Failed to fetch payload data.")
        return
    
    try:
        payload_data["functionArguments"] = [
            int(payload_data["functionArguments"][0]),
            payload_data["functionArguments"][1].lower() == "true",
            int(payload_data["functionArguments"][2]),
        ]
        payload_data["argumentTypes"] = [Serializer.u64, Serializer.bool, Serializer.u64]
        transaction_payload = handler.create_transaction_payload(payload_data)
        print("Transaction payload created successfully.")
        txn_hash = await handler.submit_transaction(transaction_payload)
        print(f"Transaction submitted successfully. Transaction hash: {txn_hash}")
        
    except Exception as e:
        print(f"Error during transaction process: {e}")

if __name__ == "__main__":
    asyncio.run(main())

20. Get Profile Address

• Endpoint URL: https://perps-tradeapi.kanalabs.io/getProfileAddress
• Method: GET

• Query Parameters:

  • userAddress(Required) - The address of the user to get the profile address.

Example Request:

Copy

GET https://perps-tradeapi.kanalabs.io/getProfileAddress?userAddress=0xd01e3a233632a41463bd6d289e99e69e1b50815c7afff710e1c992659a8722f3

Example Response:

• Status Code: 200 OK

• Response Body:

Copy

{
  "success": true,
  "message": "Profile address fetched successfully",
  "data": "0x56ad3b670c9193414e5f3dbc1d9caf7a08368c4ab0b4b29c00ce13c463f6d934"
}

Example Code to Fetch the profile address:

The following TypeScript/Node.js script demonstrates how to call the Get profile address API using the axios library.

import os
import requests
from dotenv import load_dotenv
load_dotenv()

def main():
    try:
        base_url = 'https://perps-tradeapi.kanalabs.io/getProfileAddress'
        params = {
            'userAddress': '0x4d6dc68e391e86991e58ab4d548b7e92872430d1f51bc666fe0c206bad7ff770'
        }
        api_key = os.getenv('API_KEY')
        headers = {
            'x-api-key': api_key
        }
        response = requests.get(base_url, params=params, headers=headers)
        response.raise_for_status()
        get_wallet_account_balance = response.json()
        print("getWalletAccountBalance: ", get_wallet_account_balance)
    except requests.exceptions.RequestException as error:
        print('An error occurred:', error)

if __name__ == "__main__":
    main()

21. Collapse position

• Endpoint URL: https://perps-tradeapi.kanalabs.io/collapsePosition
• Method: GET

• Query Parameters:

  • marketId (Required) - The ID of the market you want to collapse a position.

Example Request:

GET https://perps-tradeapi.kanalabs.io/collapsePosition?marketId=501

Example Response:

• Status Code: 200 OK

• Response Body:

{
  "success": true,
  "message": "collapse position payload built succesfully",
  "data": {
    "function": "0xabbf40e0c31cbedf182f3e6e9c3570f3f91629424723da876becb514bf5d9fc6::perpetual_scripts::collapse_position",
    "functionArguments": [
      "624"
    ],
    "typeArguments": []
  }
}

Example Code to collapse a position:

The following TypeScript/Node.js script demonstrates how to call the collapse position API using the axios library.

import asyncio
import os
from aptos_sdk.account import Account
from aptos_sdk.async_client import RestClient
from aptos_sdk.transactions import EntryFunction, TransactionArgument, TransactionPayload
from aptos_sdk.bcs import Serializer
from aptos_sdk.account_address import AccountAddress  # Import this
from aptos_sdk.type_tag import TypeTag, StructTag
import requests
from dotenv import load_dotenv
from typing import Any, List
load_dotenv()

class AptosTransactionHandler:
    
    def __init__(self, rest_client: RestClient, account: Account):
        self.rest_client = rest_client
        self.account = account

    def fetch_payload(self, api_url, params, headers):
        try:
            response = requests.get(api_url, params=params, headers=headers)
            response.raise_for_status()
            return response.json().get("data")
        except requests.exceptions.RequestException as e:
            print(f"Error fetching payload: {e}")
            return None

    def create_transaction_function_arguments(self, arguments: List[Any], types: List[Serializer]) -> List[TransactionArgument]:
        if len(arguments) != len(types):
            raise ValueError("Arguments and types length mismatch.")
        
        return [TransactionArgument(arg, serializer) for arg, serializer in zip(arguments, types)]

    def create_transaction_payload(self, payload: dict) -> TransactionPayload:
        try:
            function_information = payload["function"].split("::")
            module = "::".join(function_information[:-1])
            function_id = function_information[-1]
            function_arguments = self.create_transaction_function_arguments(
                payload["functionArguments"],
                payload["argumentTypes"]
            )
            type_arguments = [TypeTag(StructTag.from_str(argument)) for argument in payload["typeArguments"]]
            entry_function = EntryFunction.natural(
                module=module,
                function=function_id,
                ty_args=type_arguments,
                args=function_arguments,
            )
            return TransactionPayload(payload=entry_function)
        except Exception as e:
            print(f"Error creating transaction payload: {e}")
            raise

    async def submit_transaction(self, transaction_payload: TransactionPayload) -> str:
        try:
            signed_transaction_request = await self.rest_client.create_bcs_signed_transaction(
                sender=self.account, payload=transaction_payload
            )
            txn_hash = await self.rest_client.submit_bcs_transaction(
                signed_transaction=signed_transaction_request
            )
            await self.rest_client.wait_for_transaction(txn_hash=txn_hash)
            return txn_hash
        except Exception as e:
            print(f"Error during transaction submission: {e}")
            raise

async def main():
    NODE_URL = "https://api.testnet.aptoslabs.com/v1"
    rest_client = RestClient(NODE_URL)
    private_key_hex = os.getenv('APTOS_PRIVATEKEY')
    if private_key_hex.startswith("0x"):
        private_key_hex = private_key_hex[2:]
    private_key_bytes = bytes.fromhex(private_key_hex)
    account = Account.load_key(private_key_bytes)
    API_URL = "https://perps-tradeapi.kanalabs.io/collapsePosition"
    PARAMS = {
        "marketId": 624
    }
    HEADERS = {"x-api-key": os.getenv('API_KEY')}
    handler = AptosTransactionHandler(rest_client, account)
    payload_data = handler.fetch_payload(API_URL, PARAMS, HEADERS)
    
    if not payload_data:
        print("Failed to fetch payload data.")
        return
    
    try:
        payload_data["functionArguments"] = [
            int(payload_data["functionArguments"][0])
        ]
        payload_data["argumentTypes"] = [Serializer.u64]
        transaction_payload = handler.create_transaction_payload(payload_data)
        print("Transaction payload created successfully.")
        txn_hash = await handler.submit_transaction(transaction_payload)
        print(f"Transaction submitted successfully. Transaction hash: {txn_hash}")
        
    except Exception as e:
        print(f"Error during transaction process: {e}")

if __name__ == "__main__":
    asyncio.run(main())

22. Get All Trades

• Endpoint URL: https://perps-tradeapi.kanalabs.io/getAllTrades
• Method: GET

• Query Parameters:

  • marketId (Required) - The ID of the market to retrieve all trades information.

Example Request:

GET https://perps-tradeapi.kanalabs.io/getAllTrades?marketId=66

Example Response:

• Status Code: 200 OK

• Response Body:

{
  "success": true,
  "message": "Recent trades fetched successfully",
  "data": [
    {
      "txn_version": 6297687196,
      "event_idx": 5,
      "emit_address": "0x2eda5777ed2bf68cbcc67359dd00ae5fa73b1d5fa160b7c3aeb42d748d485387",
      "time": "2024-11-20T20:33:38.600241+00:00",
      "maker_address": "0x2eda5777ed2bf68cbcc67359dd00ae5fa73b1d5fa160b7c3aeb42d748d485387",
      "maker_custodian_id": 28,
      "maker_order_id": "15951655917465922493754983",
      "maker_side": true,
      "market_id": 66,
      "price": 11879,
      "sequence_number_for_trade": 0,
      "size": 10000,
      "taker_address": "0x13eb7ea6b62c6cd791b5c4e0e2ef1dfbe59d1cf4823929343a273274c288bc8a",
      "taker_custodian_id": 28,
      "taker_order_id": "15951748150764039921729536",
      "taker_quote_fees_paid": 59395
    },
    {
      "txn_version": 6297687196,
      "event_idx": 4,
      "emit_address": "0x13eb7ea6b62c6cd791b5c4e0e2ef1dfbe59d1cf4823929343a273274c288bc8a",
      "time": "2024-11-20T20:33:38.600241+00:00",
      "maker_address": "0x2eda5777ed2bf68cbcc67359dd00ae5fa73b1d5fa160b7c3aeb42d748d485387",
      "maker_custodian_id": 28,
      "maker_order_id": "15951655917465922493754983",
      "maker_side": true,
      "market_id": 66,
      "price": 11879,
      "sequence_number_for_trade": 0,
      "size": 10000,
      "taker_address": "0x13eb7ea6b62c6cd791b5c4e0e2ef1dfbe59d1cf4823929343a273274c288bc8a",
      "taker_custodian_id": 28,
      "taker_order_id": "15951748150764039921729536",
      "taker_quote_fees_paid": 59395
    }
  ]
}

Example Code to Fetch All trades:

The following Python script demonstrates how to call the Get Open Position API using the requests library.

import os
import requests
from dotenv import load_dotenv
load_dotenv()

def main():
    try:
        base_url = 'https://perps-tradeapi.kanalabs.io/getAlllTrades'
        params = {
          marketId: 'your_market_id'
        }
        api_key = os.getenv('API_KEY')
        headers = {
            'x-api-key': api_key
        }
        response = requests.get(base_url, params=params, headers=headers)
        response.raise_for_status()
        getAlllTrades= response.json()
        print("getAlllTrades: ", getAlllTrades)
    except requests.exceptions.RequestException as error:
        print('An error occurred:', error)

if __name__ == "__main__":
    main()

23. Get Account Apt Balance

• Endpoint URL: https://perps-tradeapi.kanalabs.io/getAccountAptBalance Method: GET
• Query Parameters:

  • userAddress (Required) - The wallet address for which the account balance is being fetched.

Example Request:

GET https://perps-tradeapi.kanalabs.io/getAccountAptBalance?userAddress=0x4d6dc68e391e86991e58ab4d548b7e92872430d1f51bc666fe0c206bad7ff770

Example Response:

• Status Code: 200 OK

• Response Body:

{
  "success": true,
  "message": "Fetched wallet apt balance successfully",
  "data": 91.60
}

Example Code to Fetch Account Apt Balance Information:

The following TypeScript/Node.js script demonstrates how to call the Get Account Apt Balance API using the axios library.

import os
import requests
from dotenv import load_dotenv
load_dotenv()

def main():
    try:
        base_url = 'https://perps-tradeapi.kanalabs.io/getAccountAptBalance'
        params = {
            'userAddress': '0x4d6dc68e391e86991e58ab4d548b7e92872430d1f51bc666fe0c206bad7ff770'
        }
        api_key = os.getenv('API_KEY')
        headers = {
            'x-api-key': api_key
        }
        response = requests.get(base_url, params=params, headers=headers)
        response.raise_for_status()
        getAccountAptBalance = response.json()
        print("getAccountAptBalance: ", getAccountAptBalance)
    except requests.exceptions.RequestException as error:
        print('An error occurred:', error)

if __name__ == "__main__":
    main()

24. Get Perpetual Asset Info

Endpoint URL: https://perps-tradeapi.kanalabs.io/getPerpetualAssetsInfo

Method: GET

Query Parameters:

• marketId (optional) – Numeric ID of the market to fetch.

• baseName (optional) – Name of the base asset (e.g., "ETH", "BTC").

Note: Either marketId or baseName must be provided. If neither is provided, the server will respond with a 400 error.

Example Request:

GET https://perps-tradeapi.kanalabs.io/getPerpetualAssetsInfo?marketId=1338

Example Response:

{
  "success": true,
  "message": "Fetched market infos successfully",
  "data": [
    {
      "__variant__": "V1",
      "base_decimals": 8,
      "base_name": "APT/USDC",
      "counter": "9473",
      "creator": "0xb61d7b57333abf8ac036e752f19d0ba0c4baa5404db1cbf868c57dac3628f2bf",
      "fee_address": "0x7724a4a23b25b460abc2a5d9fe1fe3c47e2a0e10a156dd713a221f129579c388",
      "is_recognised": false,
      "last_updated": "1745235856",
      "lot_size": "100000",
      "maintenance_margin": "250",
      "market_address": "0xcfa0086c26787035de6b4a312875c7a70b2f9a29fa880d0cf633ef3dd0acd2c3",
      "market_id": "1338",
      "market_status": 1,
      "max_leverage": "20",
      "max_lots": "150000000",
      "max_position_value": "125000000000",
      "min_lots": "500",
      "quote_decimals": 6,
      "quote_precision": 3,
      "tick_size": "1"
    }
  ]
}

Example Code:

import os
import requests
from dotenv import load_dotenv
load_dotenv()

def main():
    try:
        base_url = 'https://perps-tradeapi.kanalabs.io/getPerpetualAssetsInfo'
        params = {
            'marketId': '1338'
        }
        api_key = os.getenv('API_KEY')
        headers = {
            'x-api-key': api_key
        }
        response = requests.get(base_url, params=params, headers=headers)
        response.raise_for_status()
        getPerpetualAssetsInfo = response.json()
        print("getPerpetualAssetsInfo: ", getPerpetualAssetsInfo)
    except requests.exceptions.RequestException as error:
        print('An error occurred:', error)

if __name__ == "__main__":
    main()

---

Get All Perpetual Market Assets

Endpoint URL: https://perps-tradeapi.kanalabs.io/getPerpetualAssetsInfo/allMarkets

Method: GET

Description: Fetches all available perpetual market asset information. This endpoint does not require any query parameters.

Example Request:

GET https://perps-tradeapi.kanalabs.io/getPerpetualAssetsInfo/allMarkets

Example Response:

{
  "success": true,
  "message": "Fetched market infos successfully",
  "data": [
    {
      "__variant__": "V1",
      "base_decimals": 8,
      "base_name": "APT/USDC",
      "counter": "9473",
      "creator": "0xb61d7b57333abf8ac036e752f19d0ba0c4baa5404db1cbf868c57dac3628f2bf",
      "fee_address": "0x7724a4a23b25b460abc2a5d9fe1fe3c47e2a0e10a156dd713a221f129579c388",
      "is_recognised": false,
      "last_updated": "1745235856",
      "lot_size": "100000",
      "maintenance_margin": "250",
      "market_address": "0xcfa0086c26787035de6b4a312875c7a70b2f9a29fa880d0cf633ef3dd0acd2c3",
      "market_id": "1338",
      "market_status": 1,
      "max_leverage": "20",
      "max_lots": "150000000",
      "max_position_value": "125000000000",
      "min_lots": "500",
      "quote_decimals": 6,
      "quote_precision": 3,
      "tick_size": "1"
    },
    {
      "__variant__": "V1",
      "base_decimals": 8,
      "base_name": "BTC/USDC",
      "counter": "4813",
      "creator": "0xb61d7b57333abf8ac036e752f19d0ba0c4baa5404db1cbf868c57dac3628f2bf",
      "fee_address": "0x7724a4a23b25b460abc2a5d9fe1fe3c47e2a0e10a156dd713a221f129579c388",
      "is_recognised": false,
      "last_updated": "1745235864",
      "lot_size": "1000",
      "maintenance_margin": "250",
      "market_address": "0xc4de5894f6a97168998719c10f517572cbe10fe6911ca25004fbe87a88247ed4",
      "market_id": "1339",
      "market_status": 1,
      "max_leverage": "20",
      "max_lots": "6000000",
      "max_position_value": "125000000000",
      "min_lots": "10",
      "quote_decimals": 6,
      "quote_precision": 0,
      "tick_size": "10"
    },
    {
      "__variant__": "V1",
      "base_decimals": 8,
      "base_name": "ETH/USDC",
      "counter": "3377",
      "creator": "0xb61d7b57333abf8ac036e752f19d0ba0c4baa5404db1cbf868c57dac3628f2bf",
      "fee_address": "0x7724a4a23b25b460abc2a5d9fe1fe3c47e2a0e10a156dd713a221f129579c388",
      "is_recognised": false,
      "last_updated": "1745235871",
      "lot_size": "10000",
      "maintenance_margin": "250",
      "market_address": "0x9e173d4330b94718fd09c3d1d18b707f2713a1cd92e79403ee150429c3125718",
      "market_id": "1340",
      "market_status": 1,
      "max_leverage": "20",
      "max_lots": "10000000",
      "max_position_value": "125000000000",
      "min_lots": "10",
      "quote_decimals": 6,
      "quote_precision": 1,
      "tick_size": "10"
    }
  ]
}

Example Code:

import os
import requests
from dotenv import load_dotenv
load_dotenv()

def main():
    try:
        base_url = 'https://perps-tradeapi.kanalabs.io/getPerpetualAssetsInfo/allMarkets'
        api_key = os.getenv('API_KEY')
        headers = {
            'x-api-key': api_key
        }
        response = requests.get(base_url, headers=headers)
        response.raise_for_status()
        getPerpetualAssetsInfo = response.json()
        print("getPerpetualAssetsInfo: ", getPerpetualAssetsInfo)
    except requests.exceptions.RequestException as error:
        print('An error occurred:', error)

if __name__ == "__main__":
    main()

25. Add Margin

• Endpoint URL: https://perps-tradeapi.kanalabs.io/addMargin
• Method: GET

• Query Parameters:

  • marketId (Required) – The unique identifier of the market where the margin is being added.

  • tradeSide (Required) - Indicates the trade side:

    • true for the long side.

    • false for the short side.

  • amount (Required) – The amount of additional margin to be added to the position.

Example Request:

GET https://perps-tradeapi.kanalabs.io/addMargin?marketId=1338&tradeSide=true&amount=1

Example Response:

• Status Code: 200 OK

• Response Body:

{
  "success": true,
  "message": "Add Margin payload built successfully",
  "data": {
    "function": "0x732f891290449af5e9369866537a51a8e7dc566791aec61a468223ed840b1eb4::perpetual_scripts::add_margin",
    "functionArguments": [
      "1338",
      "true",
      1000000
    ],
    "typeArguments": []
  }
}

Example Code to add a margin:

The following python demonstrates how to call the Get Add Margin API using the axios library.

import asyncio
import os
import requests
from dotenv import load_dotenv
from typing import List
from aptos_sdk.account import Account
from aptos_sdk.async_client import RestClient
from aptos_sdk.transactions import EntryFunction, TransactionArgument, TransactionPayload
from aptos_sdk.bcs import Serializer
from aptos_sdk.type_tag import TypeTag, StructTag

load_dotenv()

class AptosTransactionHandler:
    def __init__(self, rest_client: RestClient, account: Account):
        self.rest_client = rest_client
        self.account = account

    def fetch_payload(self, api_url, params, headers):
        try:
            response = requests.get(api_url, params=params, headers=headers)
            response.raise_for_status()
            return response.json().get("data")
        except requests.RequestException as e:
            print(f"Error fetching payload: {e}")
            return None

    def create_transaction_function_arguments(self, arguments: List, types: List[Serializer]) -> List[TransactionArgument]:
        if len(arguments) != len(types):
            raise ValueError("Arguments and types length mismatch.")
        return [TransactionArgument(arg, serializer) for arg, serializer in zip(arguments, types)]

    def create_transaction_payload(self, payload: dict) -> TransactionPayload:
        try:
            module, function_id = "::".join(payload["function"].split("::")[:-1]), payload["function"].split("::")[-1]
            function_arguments = self.create_transaction_function_arguments(payload["functionArguments"], payload["argumentTypes"])
            type_arguments = [TypeTag(StructTag.from_str(argument)) for argument in payload["typeArguments"]]
            
            entry_function = EntryFunction.natural(module=module, function=function_id, ty_args=type_arguments, args=function_arguments)
            return TransactionPayload(payload=entry_function)
        except Exception as e:
            print(f"Error creating transaction payload: {e}")
            raise

    async def submit_transaction(self, transaction_payload: TransactionPayload) -> str:
        try:
            signed_transaction = await self.rest_client.create_bcs_signed_transaction(self.account, transaction_payload)
            txn_hash = await self.rest_client.submit_bcs_transaction(signed_transaction)
            await self.rest_client.wait_for_transaction(txn_hash)
            return txn_hash
        except Exception as e:
            print(f"Error during transaction submission: {e}")
            raise

async def main():
    NODE_URL = "https://api.testnet.aptoslabs.com/v1"
    private_key_hex = os.getenv('APTOS_PRIVATEKEY')

    if not private_key_hex:
        print("Error: APTOS_PRIVATEKEY is missing in .env file.")
        return

    account = Account.load_key(bytes.fromhex(private_key_hex[2:] if private_key_hex.startswith("0x") else private_key_hex))
    rest_client = RestClient(NODE_URL)

    API_URL = "https://perps-tradeapi.kanalabs.io/addMargin"
    PARAMS = {"marketId": 1338, "tradeSide": True, "amount": 10}
    HEADERS = {"x-api-key": os.getenv('API_KEY')}

    handler = AptosTransactionHandler(rest_client, account)
    payload_data = handler.fetch_payload(API_URL, PARAMS, HEADERS)

    if not payload_data:
        print("Failed to fetch payload data.")
        return

    try:
        payload_data["functionArguments"] = [
            int(payload_data["functionArguments"][0]),
            payload_data["functionArguments"][1].lower() == "true",
            int(payload_data["functionArguments"][2]),
        ]

        payload_data["argumentTypes"] = [
            Serializer.u64, Serializer.bool, Serializer.u64
        ]
        
        transaction_payload = handler.create_transaction_payload(payload_data)
        print("Transaction payload created successfully.")
        txn_hash = await handler.submit_transaction(transaction_payload)
        print(f"Transaction submitted successfully. Hash: {txn_hash}")

    except Exception as e:
        print(f"Transaction process error: {e}")

if __name__ == "__main__":
    asyncio.run(main())

27. Settle Pnl

This API returns a transaction payload used to manually (or automatically, on user interactions) refresh the user's position and settle the Pnl for a specific market, allowing the user to claim any unreleased Pnl.

• Endpoint URL: https://perps-tradeapi.kanalabs.io/settlePnl
• Method: GET

• Query Parameters:

  • marketId (Required) - A numeric identifier representing the specific perpetual market.

  • userAddress (Required) - The wallet address of the user whose PnL is to be settled.

Example Request:

GET https://perps-tradeapi.kanalabs.io/settlePnl?userAddress=0xd0ff27c8411015f386ffc464e3baaa12fca10f1bef1ec6af36c27ed96b65f6c6&marketId=1338=6000

Example Response:

• Status Code: 200 OK

• Response Body:

{
  "success": true,
  "message": "Update position payload built succesfully",
  "data": {
    "function": "0x732f891290449af5e9369866537a51a8e7dc566791aec61a468223ed840b1eb4::perpetual_scripts::update_position",
    "functionArguments": [
      "0xd0ff27c8411015f386ffc464e3baaa12fca10f1bef1ec6af36c27ed96b65f6c6",
      "1338"
    ],
    "typeArguments": []
  }
}

Example Code to Get Settle Pnl:

The following TypeScript/Node.js script demonstrates how to call the Get Settle pnl API using the axios library.

import asyncio
import os
from aptos_sdk.account import Account
from aptos_sdk.async_client import RestClient
from aptos_sdk.transactions import EntryFunction, TransactionArgument, TransactionPayload
from aptos_sdk.bcs import Serializer
from aptos_sdk.account_address import AccountAddress  # Import this
from aptos_sdk.type_tag import TypeTag, StructTag
import requests
from dotenv import load_dotenv
from typing import Any, List
load_dotenv()

class AptosTransactionHandler:
    
    def __init__(self, rest_client: RestClient, account: Account):
        self.rest_client = rest_client
        self.account = account

    def fetch_payload(self, api_url, params, headers):
        try:
            response = requests.get(api_url, params=params, headers=headers)
            response.raise_for_status()
            return response.json().get("data")
        except requests.exceptions.RequestException as e:
            print(f"Error fetching payload: {e}")
            return None

    def create_transaction_function_arguments(self, arguments: List[Any], types: List[Serializer]) -> List[TransactionArgument]:
        if len(arguments) != len(types):
            raise ValueError("Arguments and types length mismatch.")
        
        return [TransactionArgument(arg, serializer) for arg, serializer in zip(arguments, types)]

    def create_transaction_payload(self, payload: dict) -> TransactionPayload:
        try:
            function_information = payload["function"].split("::")
            module = "::".join(function_information[:-1])
            function_id = function_information[-1]
            function_arguments = self.create_transaction_function_arguments(
                payload["functionArguments"],
                payload["argumentTypes"]
            )
            type_arguments = [TypeTag(StructTag.from_str(argument)) for argument in payload["typeArguments"]]
            entry_function = EntryFunction.natural(
                module=module,
                function=function_id,
                ty_args=type_arguments,
                args=function_arguments,
            )
            return TransactionPayload(payload=entry_function)
        except Exception as e:
            print(f"Error creating transaction payload: {e}")
            raise

    async def submit_transaction(self, transaction_payload: TransactionPayload) -> str:
        try:
            signed_transaction_request = await self.rest_client.create_bcs_signed_transaction(
                sender=self.account, payload=transaction_payload
            )
            txn_hash = await self.rest_client.submit_bcs_transaction(
                signed_transaction=signed_transaction_request
            )
            await self.rest_client.wait_for_transaction(txn_hash=txn_hash)
            return txn_hash
        except Exception as e:
            print(f"Error during transaction submission: {e}")
            raise

async def main():
    NODE_URL = "https://api.testnet.aptoslabs.com/v1"
    rest_client = RestClient(NODE_URL)
    private_key_hex = os.getenv('APTOS_PRIVATEKEY')
    if private_key_hex.startswith("0x"):
        private_key_hex = private_key_hex[2:]
    private_key_bytes = bytes.fromhex(private_key_hex)
    account = Account.load_key(private_key_bytes)
    API_URL = "https://perps-tradeapi.kanalabs.io/settlePnl"
    PARAMS = {
        "userAddress":"0x4d6dc68e391e86991e58ab4d548b7e92872430d1f51bc666fe0c206bad7ff770",
        "marketId": 1338
    }
    HEADERS = {"x-api-key": os.getenv('API_KEY')}
    handler = AptosTransactionHandler(rest_client, account)
    payload_data = handler.fetch_payload(API_URL, PARAMS, HEADERS)
    
    if not payload_data:
        print("Failed to fetch payload data.")
        return
    
    try:
        payload_data["functionArguments"] = [
            AccountAddress.from_str(payload_data["functionArguments"][0]),  
            int(payload_data["functionArguments"][1]),
        ]
        payload_data["argumentTypes"] = [Serializer.struct, Serializer.u64]
        transaction_payload = handler.create_transaction_payload(payload_data)
        print("Transaction payload created successfully.")
        txn_hash = await handler.submit_transaction(transaction_payload)
        print(f"Transaction submitted successfully. Transaction hash: {txn_hash}")
        
    except Exception as e:
        print(f"Error during transaction process: {e}")

if __name__ == "__main__":
    asyncio.run(main())

26. Get Net Profile Balance

This endpoint returns the net profile balance, which includes both the available balance in trading account and any pending balances from closed positions on all markets.

• Endpoint URL: https://perps-tradeapi.kanalabs.io/getNetProfileBalance
• Method: GET

• Query Parameters:

  • userAddress (Required) - The wallet address for which the account balance is being fetched.

Example Request:

GET https://perps-tradeapi.kanalabs.io/getNetProfileBalance?userAddress=0x4d6dc68e391e86991e58ab4d548b7e92872430d1f51bc666fe0c206bad7ff770

Example Response:

• Status Code: 200 OK

• Response Body:

{
  "success": true,
  "message": "Net Profile Balance fetched successfully",
  "data": 49443.432113
}

Example Code to Fetch Net Profile Balance Information:

The following python demonstrates how to call the Get Net Profile Balance API using the axios library.

import os
import requests
from dotenv import load_dotenv
load_dotenv()

def main():
    try:
        base_url = 'https://perps-tradeapi.kanalabs.io/getNetProfileBalance'
        params = {
            'userAddress': '0x4d6dc68e391e86991e58ab4d548b7e92872430d1f51bc666fe0c206bad7ff770'
        }
        api_key = os.getenv('API_KEY')
        headers = {
            'x-api-key': api_key
        }
        response = requests.get(base_url, params=params, headers=headers)
        response.raise_for_status()
        get_net_profile_balance= response.json()
        print("getNetProfileBalance: ", get_net_profile_balance)
    except requests.exceptions.RequestException as error:
        print('An error occurred:', error)

if __name__ == "__main__":
    main()

27. Settle Pnl

This API returns a transaction payload used to manually (or automatically, on user interactions) refresh the user's position and settle the Pnl for a specific market, allowing the user to claim any unreleased Pnl.

• Endpoint URL: https://perps-tradeapi.kanalabs.io/settlePnl
• Method: GET

• Query Parameters:

  • marketId (Required) -

  • userAddress (Required) -

Example Request:

GET https://perps-tradeapi.kanalabs.io/settlePnl?userAddress=0xd0ff27c8411015f386ffc464e3baaa12fca10f1bef1ec6af36c27ed96b65f6c6&marketId=1338=6000

Example Response:

• Status Code: 200 OK

• Response Body:

{
  "success": true,
  "message": "Update position payload built succesfully",
  "data": {
    "function": "0x732f891290449af5e9369866537a51a8e7dc566791aec61a468223ed840b1eb4::perpetual_scripts::update_position",
    "functionArguments": [
      "0xd0ff27c8411015f386ffc464e3baaa12fca10f1bef1ec6af36c27ed96b65f6c6",
      "1338"
    ],
    "typeArguments": []
  }
}

Example Code to Get Settle Pnl:

The following python demonstrates how to call the Get Settle pnl API using the axios library.

import asyncio
import os
from aptos_sdk.account import Account
from aptos_sdk.async_client import RestClient
from aptos_sdk.transactions import EntryFunction, TransactionArgument, TransactionPayload
from aptos_sdk.bcs import Serializer
from aptos_sdk.account_address import AccountAddress  # Import this
from aptos_sdk.type_tag import TypeTag, StructTag
import requests
from dotenv import load_dotenv
from typing import Any, List
load_dotenv()

class AptosTransactionHandler:
    
    def __init__(self, rest_client: RestClient, account: Account):
        self.rest_client = rest_client
        self.account = account

    def fetch_payload(self, api_url, params, headers):
        try:
            response = requests.get(api_url, params=params, headers=headers)
            response.raise_for_status()
            return response.json().get("data")
        except requests.exceptions.RequestException as e:
            print(f"Error fetching payload: {e}")
            return None

    def create_transaction_function_arguments(self, arguments: List[Any], types: List[Serializer]) -> List[TransactionArgument]:
        if len(arguments) != len(types):
            raise ValueError("Arguments and types length mismatch.")
        
        return [TransactionArgument(arg, serializer) for arg, serializer in zip(arguments, types)]

    def create_transaction_payload(self, payload: dict) -> TransactionPayload:
        try:
            function_information = payload["function"].split("::")
            module = "::".join(function_information[:-1])
            function_id = function_information[-1]
            function_arguments = self.create_transaction_function_arguments(
                payload["functionArguments"],
                payload["argumentTypes"]
            )
            type_arguments = [TypeTag(StructTag.from_str(argument)) for argument in payload["typeArguments"]]
            entry_function = EntryFunction.natural(
                module=module,
                function=function_id,
                ty_args=type_arguments,
                args=function_arguments,
            )
            return TransactionPayload(payload=entry_function)
        except Exception as e:
            print(f"Error creating transaction payload: {e}")
            raise

    async def submit_transaction(self, transaction_payload: TransactionPayload) -> str:
        try:
            signed_transaction_request = await self.rest_client.create_bcs_signed_transaction(
                sender=self.account, payload=transaction_payload
            )
            txn_hash = await self.rest_client.submit_bcs_transaction(
                signed_transaction=signed_transaction_request
            )
            await self.rest_client.wait_for_transaction(txn_hash=txn_hash)
            return txn_hash
        except Exception as e:
            print(f"Error during transaction submission: {e}")
            raise

async def main():
    NODE_URL = "https://api.testnet.aptoslabs.com/v1"
    rest_client = RestClient(NODE_URL)
    private_key_hex = os.getenv('APTOS_PRIVATEKEY')
    if private_key_hex.startswith("0x"):
        private_key_hex = private_key_hex[2:]
    private_key_bytes = bytes.fromhex(private_key_hex)
    account = Account.load_key(private_key_bytes)
    API_URL = "https://perps-tradeapi.kanalabs.io/settlePnl"
    PARAMS = {
        "userAddress":"0x4d6dc68e391e86991e58ab4d548b7e92872430d1f51bc666fe0c206bad7ff770",
        "marketId": 1338
    }
    HEADERS = {"x-api-key": os.getenv('API_KEY')}
    handler = AptosTransactionHandler(rest_client, account)
    payload_data = handler.fetch_payload(API_URL, PARAMS, HEADERS)
    
    if not payload_data:
        print("Failed to fetch payload data.")
        return
    
    try:
        payload_data["functionArguments"] = [
            AccountAddress.from_str(payload_data["functionArguments"][0]),  
            int(payload_data["functionArguments"][1]),
        ]
        payload_data["argumentTypes"] = [Serializer.struct, Serializer.u64]
        transaction_payload = handler.create_transaction_payload(payload_data)
        print("Transaction payload created successfully.")
        txn_hash = await handler.submit_transaction(transaction_payload)
        print(f"Transaction submitted successfully. Transaction hash: {txn_hash}")
        
    except Exception as e:
        print(f"Error during transaction process: {e}")

if __name__ == "__main__":
    asyncio.run(main())