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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。

导入 web3 和 @kaiachain/web3js-ext 软件包，在 web3 上添加 kaia 功能

定义发件人地址和发件人私人密钥

智能合约通过tecode部署，你可以从编译后的solidity代码中重新获取它

使用指定的 kairos 测试网 URL 设置提供程序。 web3js 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

使用提供程序创建KlaytnWeb3实例

使用web3.eth.accounts.privateKeyToAccount将发件人的私人密钥转换为一个账户

为取消事务定义一个事务对象

设置 `type：为部署合同的交易类型设置 "类型：TxType.SmartContractDeploy

为合约源设置 "数据：字节码 "或 "输入：字节码

将参数 from、humanReadable、codeFormat 设置为示例中的值

用发送人的账户签署交易

将已签名的交易发送到 kaia 网络。 它将返回交易收据

SmartContractDeploy.js

const { KlaytnWeb3, TxType } = require("@kaiachain/web3js-ext");

const { Web3 } = require("web3");

const senderAddr = "0xa2a8854b1802d8cd5de631e690817c253d6a9153";

const senderPriv = "0x0e4ca6d38096ad99324de0dde108587e5d7c600165ae4cd6c2462c597458c2b8";

const bytecode = "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";

async function main() {

const provider = new Web3.providers.HttpProvider("https://public-en-kairos.node.kaia.io");

const web3 = new KlaytnWeb3(provider);

const senderAccount = web3.eth.accounts.privateKeyToAccount(senderPriv);

const tx = {

type: TxType.SmartContractDeploy,

from: senderAddr,

data: bytecode, // both 'data' and 'input' works

humanReadable: false, // must be false

codeFormat: 0, // must be 0

};

const signResult = await senderAccount.signTransaction(tx);

console.log("rawTx", signResult.rawTransaction);

const receipt = await web3.eth.sendSignedTransaction(signResult.rawTransaction);

console.log("receipt", receipt);

}

main();

output

´ js SmartContractDeploy.js

signedTx 0x07b3209f1e56484f9a61885b25ddb398668b6d423ca98fea5004f1a1b87d1532

receipt {

blockHash：'0x8a5cde9fd5b5f8dba974b4d5207cdb728a7e07cc9f595ef8e6284f1681a45e8b',

blockNumber: 148742566n,

contractAddress：0xbb1e6520d31d7d046e993a436e0f9c054ac37efb',

cumulativeGasUsed：130317n,

effectiveGasPrice: 25000000000n,

from: '0xa2a8854b1802d8cd5de631e690817c253d6a9153',

gasUsed：130317n,

logs：[],

logsBloom：'0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000',

status：1n,

transactionHash: '0x07b3209f1e56484f9a61885b25ddb398668b6d423ca98fea5004f1a1b87d1532',

transactionIndex：0n,

type：0n

}