Cancel DEX Order

JS

const actions = [
  {
      // Dex Smart Contract
      "account": "dex",
      // Action name
      "name": "cancelorder",
      // Action data
      "data": {
        "account": username,
        "order_id": 23
      },
      authorization
  },
  {
      account: 'dex',
      name: "withdrawall",
      data: {
          account: username,
      },
      authorization
  },
]

const main = async () => {
     await transact(actions)
}

main()

JS (Submit API)

// npm i @proton/js node-fetch@cjs
const { JsonRpc, Api, JsSignatureProvider, Serialize } = require('@proton/js')
const fetch = require('node-fetch');

// For testnet use https://rpc.api.testnet.metalx.com
const ENDPOINTS = ['https://rpc.api.mainnet.metalx.com']

// for testnet use https://dex.api.testnet.metalx.com/dex
const DEX_API_URL = "https://dex.api.mainnet.metalx.com/dex"

// To export private key from your wallet, follow:
// https://help.xprnetwork.org/hc/en-us/articles/4410313687703-How-do-I-backup-my-private-key-in-the-WebAuth-Wallet-
const PRIVATE_KEY = 'PVT_K1_2fdW4UGdbgG59mUaTiMXLy1rFv3afbmSWEZGWFz6zF8dR1VZPb'

// Initialize
const rpc = new JsonRpc(ENDPOINTS)
const signatureProvider = new JsSignatureProvider([PRIVATE_KEY])
const api = new Api({ rpc, signatureProvider })

// Example username, replace with your own
const USERNAME = 'metaltest1'
const authorization = [{ actor: USERNAME, permission: 'active' }]

// Cancel transaction builder
const buildCancelTransaction = orderId => {
  return {
    actions: [
      {
          account: 'dex',
          name: 'cancelorder',
          data: {
            account: USERNAME,
            order_id: orderId
          },
          authorization
      },
      {
          account: 'dex',
          name: 'withdrawall',
          data: {
              account: USERNAME,
          },
          authorization
      },
    ]
  }
}

async function main() {
  // Get order by ordinal ID
  const EXAMPLE_ORDINAL_ORDER_ID = '7fc4fbef0abcc61bebb8fcc0327bf7bb50d9fb77eaa92b876d0985845475a1f3'
  const orderHistoryResponse = await fetch(`${DEX_API_URL}/v1/orders/history?account=${USERNAME}&ordinal_order_ids=${EXAMPLE_ORDINAL_ORDER_ID}`);
  const { data: orders } = await orderHistoryResponse.json()

  // Build transaction (using first order ID for example)
  const transaction = buildCancelTransaction(orders[0].order_id)

  // Sign
  const { serializedTransaction, signatures } = await api.transact(transaction, {
    blocksBehind: 300,
    expireSeconds: 3000,
    broadcast: false
  })
    
  // Submit transaction
  const submitResponse = await fetch(`${DEX_API_URL}/v1/orders/submit`, {
      method: 'POST',
      headers: {
          'Content-Type': 'application/json'
      },
      body: JSON.stringify({
          serialized_tx_hex: Buffer.from(serializedTransaction).toString('hex'),
          signatures: signatures
      }),
  });
  const submitData = await submitResponse.json()
  console.dir(submitData, { depth: null })
}
main()

Python

args1 = {
        # Trading account
        "account": "user1",
        # ID of order
        "order_id": 1765,
}
args2 = {
        # Trading account
        "account": "user1",
}

permission = {'user1':'active'}

a1 = ['dex', 'cancelorder', args1, permission]
a2 = ['dex', 'withdrawall', args2, permission]

eosapi.push_actions([a1, a2])

Python (Submit API)

# Cancel Order example

import os
import json
import requests
from pyeoskit import eosapi, wallet
#import your account private key here
wallet.import_key('mywallet', 'PVT_K1_2fdW4UGdbgG59mUaTiMXLy1rFv3afbmSWEZGWFz6zF8dR1VZPb')
#For testnet use https://rpc.api.testnet.metalx.com
eosapi.set_node('https://rpc.api.mainnet.metalx.com')

USERNAME = 'otctest'
ORDERID = 000000

# for testnet use "https://dex.api.testnet.metalx.com/dex/v1/orders/submit"
url = "https://dex.api.mainnet.metalx.com/dex/v1/orders/submit"
headers = {"content-type": "application/json", "Accept-Charset": "UTF-8"}
permission = {USERNAME: 'active'}

args1 = {
        # Trading account
        'account': USERNAME,
        # ID of order
        "order_id": ORDERID,
}
args2 = {
        # User account
        'account': USERNAME,
}

a1 = ['dex', 'cancelorder', args1, permission]
a2 = ['dex', 'withdrawall', args2, permission]

info = eosapi.get_info()
final_tx = eosapi.generate_packed_transaction(
    [a1, a2],
    60,
    info['last_irreversible_block_id'],
    info['chain_id']
)

mtx = json.loads(final_tx)
# Print transaction details
print('\nSignature: ', mtx["signatures"], '\nPacked Tx: ',  mtx["packed_trx"])

# Submit transaction
payload = {
    "serialized_tx_hex": mtx["packed_trx"],
    "signatures": mtx["signatures"]
}

r = requests.post(url,  json=payload, headers=headers)
data = r.json()


print(data)