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智能合约部署

TxTypeSmartContractDeploy 向给定地址部署智能合约。该交易类型将进行以下更改。

收费代表团

导入**@kaiachain/viem-ext**软件包，在 web3 上添加 kaia 功能

使用 createWalletClient，配置Kairos链、HTTP传输和转换为账户的发送方私钥，建立发送方和付费方钱包。

使用prepareTransactionRequest创建价值转移交易请求，指定发送方账户、接收方地址、要转移的价值（本例中为 0 KLAY）、交易类型**(TxType.FeeDelegatedSmartContractDeploy)**、humanReadable: false指定合约代码为字节码（非人工可读源代码）、codeFormat：0 表示合约代码的格式（通常是 EVM 字节码），data 包含要部署的智能合约的编译字节码。

使用钱包客户端的 signTransaction 方法签署交易，并记录交易哈希值。

费用支付者使用函数 "signTransactionAsFeePayer "签署发件人已经签署的交易，同意支付交易费用。

使用 "kaia_sendRawTransaction "方法向 Kairos 区块链网络发送完全签名的授权交易（由发送方和支付方签名），并返回交易哈希值或网络响应。

TxTypeFeeDelegatedSmartContractDeploy.js


import { http, createWalletClient, kairos, TxType, privateKeyToAccount } from "@kaiachain/viem-ext";
const senderWallet = createWalletClient({
  chain: kairos,
  transport: http(),
  account: privateKeyToAccount(
    "0x0e4ca6d38096ad99324de0dde108587e5d7c600165ae4cd6c2462c597458c2b8"
  ),
})
const feePayerWallet = createWalletClient({
  chain: kairos,
  transport: http(),
  account: privateKeyToAccount(
    "0x9435261ed483b6efa3886d6ad9f64c12078a0e28d8d80715c773e16fc000cff4"
  ),
});
// Example usage
(async () => {
  const tx = await senderWallet.prepareTransactionRequest({
    type: TxType.FeeDelegatedSmartContractDeploy,
    account: senderWallet.account,
    value: 0,
    humanReadable: false,
    codeFormat: 0,
    data: '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',
  });
  const signedTx = await senderWallet.signTransaction(tx);
  console.log('signedTx', signedTx)
  const feePayerSignedTx = await feePayerWallet.signTransactionAsFeePayer(
    signedTx
  );
  const sentFeePayerTx = await feePayerWallet.request({
    method: "klay_sendRawTransaction",
    params: [feePayerSignedTx],
  });
  console.log("fee payer contract deploy tx", sentFeePayerTx);
})();

output


❯ js TxTypeFeeDelegatedSmartContractDeploy.js
signedTx 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
fee payer contract deploy tx 0x8c07cbd99de8a0ff2b84bfb9c1a7e6729e93d03b86be7db091d7981e352f779f