This page uses machine translation from English, which may contain errors or unclear language. For the most accurate information, please see the original English version. Some content may be in the original English due to frequent updates. Help us improve this page's translation by joining our effort on Crowdin. (Crowdin translation page, Contributing guide)

Cancel

TxTypeCancel cancels the execution of the transaction with the same nonce in the transaction pool. This transaction type is useful when a submitted transaction seems unprocessed for a certain amount of time.

Import @kaiachain/viem-ext packages to add kaia features on web3

Specify the kairos chain configuration to connect to the Kaia Kairos testnet.

Set up a wallet client using createWalletClient, configured with the Kairos chain, an HTTP transport, and the sender’s private key converted to an account.

Create a transaction request for the cancel transaction using prepareTransactionRequest, specifying the transaction type and sender account.

Sign and send the cancel transaction to the Kaia blockchain using the wallet client’s sendTransaction method, and log the transaction hash.

TxCancelType.js


import { createWalletClient, http, privateKeyToAccount, TxType } from "@kaiachain/viem-ext";
import { kairos } from "viem/chains";
const senderWallet = createWalletClient({
  chain: kairos,
  transport: http(),
  account: privateKeyToAccount(
    "0x0e4ca6d38096ad99324de0dde108587e5d7c600165ae4cd6c2462c597458c2b8"
  ),
});
// Example usage
(async () => {
  const txRequest = await senderWallet.prepareTransactionRequest({
    account: senderWallet.account,
    type: TxType.Cancel,
  });
  console.log("txRequest", txRequest);
  
  const sentTx = await senderWallet.sendTransaction(txRequest);
  console.log("Cancel tx", sentTx);
})();

output


❯ node TxCancelType.js
txRequest {
  account: {
    address: '0xA2a8854b1802D8Cd5De631E690817c253d6a9153',
    nonceManager: undefined,
    sign: [AsyncFunction: sign],
    signAuthorization: [AsyncFunction: signAuthorization],
    signMessage: [AsyncFunction: signMessage],
    signTransaction: [AsyncFunction: signTransaction],
    signTypedData: [AsyncFunction: signTypedData],
    source: 'privateKey',
    type: 'local',
    publicKey: '0x04dc9dccbd788c00fa98f7f4082f2f714e799bc0c29d63f04d48b54fe6250453cdaf06ca34ae8714cf3dae06bacdb78c7c2d4054bd38961d40853cd5f15955da79'   
  },
  type: 56,
  from: '0xA2a8854b1802D8Cd5De631E690817c253d6a9153',
  nonce: 2385,
  chainId: 1001,
  gas: 53000n,
  gasPrice: '0x66720b300',
  gasLimit: 132500
}
Cancel tx 0x1bc6db276a8bc2395fcbcd3efd96afba7cf4b5cbcfd18f6bdde541d04838d065