本頁面使用機器翻譯自英語，可能包含錯誤或不清楚的語言。如需最準確的信息，請參閱英文原文。由於更新頻繁，部分內容可能與英文原文有出入。請加入我們在 Crowdin 上的努力，幫助我們改進本頁面的翻譯。 (Crowdin translation page, Contributing guide)

Cancel

TxTypeCancel 取消事務池中具有相同 nonce 的事務的執行。當已提交的交易在一定時間內似乎未得到處理時，這種交易類型就很有用。

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

定義發件人地址和發件人私人密鑰

使用指定的 kairos 測試網 URL 設置提供程序。以太坊中的提供者是訪問區塊鏈數據的只讀抽象。

此外，您還可以將提供商 URL 從 kairos 更改為 quicknode

用私鑰和提供者創建發送者錢包

聲明一個事務，from 字段為發件人地址，type 字段為TxType.Cancel。

向區塊鏈發送 tx。函數 "sendTransaction "使用賬戶的私鑰進行內部簽名，然後將其傳輸到區塊鏈網絡。

如果已在區塊鏈中完成發送，wait函數將返回發送回執。

TxCancelType.js


const ethers = require("ethers");
const { Wallet, TxType } = require("@kaiachain/ethers-ext/v6");
const senderAddr = "0xa2a8854b1802d8cd5de631e690817c253d6a9153";
const senderPriv = "0x0e4ca6d38096ad99324de0dde108587e5d7c600165ae4cd6c2462c597458c2b8";
const provider = new ethers.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
}