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Cancel

TxTypeCancel 取消事务池中具有相同 nonce 的事务的执行。当已提交的交易在一定时间内似乎未得到处理时，这种交易类型就很有用。

导入 ethers 和 @kaiachain/ethers-ext 软件包，在 ethers.js 上添加 kaia 功能

定义发件人地址和发件人私人密钥

使用指定的 kairos 测试网 URL 设置提供程序。以太坊中的提供者是访问区块链数据的只读抽象。

此外，您还可以将提供商 URL 从 kairos 更改为 quicknode

用私钥和提供者创建发送者钱包

声明一个事务，from 字段为发件人地址，type 字段为TxType.Cancel。

向区块链发送 tx。函数 "sendTransaction "使用账户的私钥进行内部签名，然后将其传输到区块链网络。

如果已在区块链中完成发送，wait函数将返回发送回执。

TxCancelType.js


const ethers = require("ethers");
const { Wallet, TxType } = require("@kaiachain/ethers-ext");
const senderAddr = "0xa2a8854b1802d8cd5de631e690817c253d6a9153";
const senderPriv = "0x0e4ca6d38096ad99324de0dde108587e5d7c600165ae4cd6c2462c597458c2b8";
const provider = new ethers.providers.JsonRpcProvider("https://public-en-kairos.node.kaia.io");
const wallet = new Wallet(senderPriv, provider);
async function main() {
  const tx = {
    type: TxType.Cancel,
    from: senderAddr,
  };
  const sentTx = await wallet.sendTransaction(tx);
  console.log("sentTx", sentTx.hash);
  const receipt = await sentTx.wait();
  console.log("receipt", receipt);
}
main();

output


❯ node TxCancelType.js
sentTx 0xf03972d188605e7311885cafeaabda6dd67b2c679a509a7a3b924933de816e6a
receipt {
  to: '0xA2a8854b1802D8Cd5De631E690817c253d6a9153',
  from: '0xA2a8854b1802D8Cd5De631E690817c253d6a9153',
  contractAddress: null,
  transactionIndex: 1,
  gasUsed: BigNumber { _hex: '0x5208', _isBigNumber: true },
  logsBloom: '0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000',
  blockHash: '0xd3a04d1d6629bb49f1b778e779f20e83a256b5c22d840f43382a82d3f5352016',
  transactionHash: '0xf03972d188605e7311885cafeaabda6dd67b2c679a509a7a3b924933de816e6a',
  logs: [],
  blockNumber: 148720874,
  confirmations: 2,
  cumulativeGasUsed: BigNumber { _hex: '0x03240d', _isBigNumber: true },
  effectiveGasPrice: BigNumber { _hex: '0x05d21dba00', _isBigNumber: true },
  status: 1,
  type: 0,
  byzantium: true
}