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alchemy

TxTypeValueTransfer 用於用戶發送 KAIA。

由於 kaia 提供了多種交易類型，使每種交易類型只服務於一個目的，因此 TxTypeValueTransfer 只限於將 KAIA 發送到外部擁有的賬戶（EOA）。

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

定義發送方、接收方地址和發送方私人密鑰

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，您還可以更改默認提供商。例如，使用alchemy提供者。

使用提供程序創建KlaytnWeb3實例

聲明事務參數，如 ** 類型、從、到、值**

用發送方賬戶簽署交易

將已簽名的交易發送到區塊鏈，並打印收據

txTypeValueTransferTransaction.js


const { KlaytnWeb3, TxType, toPeb } = require("@kaiachain/web3js-ext");
const { Web3 } = require("web3");
const recieverAddr = "0xc40b6909eb7085590e1c26cb3becc25368e249e9";
const senderAddr = "0xa2a8854b1802d8cd5de631e690817c253d6a9153";
const senderPriv = "0x0e4ca6d38096ad99324de0dde108587e5d7c600165ae4cd6c2462c597458c2b8";
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.ValueTransfer,
    from: senderAddr,
    to: recieverAddr,
    value: toPeb("0.01", "KLAY"),
  };
  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


❯ node txTypeLegacyTransaction.js
signedTx 0x9f7ef299e96a4648ccef2195897380ecd2bed589aac93d8711049e864dcdbca8
receipt {
  blockHash: '0x07fa42d5461f851a38014ff9a1f0b042d7ea79de63c487cdef28f15db37e7328',
  blockNumber: 148742320n,
  cumulativeGasUsed: 205837n,
  effectiveGasPrice: 25000000000n,
  from: '0xa2a8854b1802d8cd5de631e690817c253d6a9153',
  gasUsed: 21000n,
  logs: [],
  logsBloom: '0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000',
  status: 1n,
  to: '0xc40b6909eb7085590e1c26cb3becc25368e249e9',
  transactionHash: '0x9f7ef299e96a4648ccef2195897380ecd2bed589aac93d8711049e864dcdbca8',
  transactionIndex: 1n,
  type: 0n
}