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智能合約部署

TxTypeSmartContractDeploy 向給定地址部署智能合約。 該交易類型將進行以下更改。

導入 web3 和 @kaiachain/web3js-ext 軟件包，在 web3 上添加 kaia 功能

定義發件人地址和發件人私人密鑰

智能合約通過tecode部署，你可以從編譯後的solidity代碼中重新獲取它

使用指定的 kairos 測試網 URL 設置提供程序。 web3js 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

使用提供程序創建KlaytnWeb3實例

使用web3.eth.accounts.privateKeyToAccount將發件人的私人密鑰轉換為一個賬戶

為取消事務定義一個事務對象

設置 `type：為部署合同的交易類型設置 "類型：TxType.SmartContractDeploy

為合約源設置 "數據：字節碼 "或 "輸入：字節碼

將參數 from、humanReadable、codeFormat 設置為示例中的值

用發送人的賬戶簽署交易

將已簽名的交易發送到 kaia 網絡。 它將返回交易收據

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

}