본문으로 건너뛰기

Role-based Account Key

AccountKeyRoleBased represents a role-based key. If an account has an AccountKeyRoleBased object and the transaction type is one except account update, the validation process is done according to each roles like below:

Import the @kaiachain/web3js-ext packages to add kaia features on web3

Define sender's address and role-based private keys

Define receiver's address

Set up the provider with the specified kairos testnet URL. A provider in web3js is a read-only abstraction to access the blockchain data.

Also, you can change the provider URL from kairos to quicknode

Define a web3 instance using the provider

Create a sender's wallet with the transaction role private key and provider

Create a value transfer transaction with type: TxType.ValueTransfer

Sign the transaction with the wallet that has role sending transaction

Send the signed transaction to kaia network

Recover the address from signed transaction using web3.klay.recoverFromTransaction

SignTxWithRoleBasedExample.js

const { Web3, TxType, toPeb } = require("@kaiachain/web3js-ext");
const senderAddr = "0x334b4d3c775c45c59de54e9f0408cba25a1aece7";
const senderRoleTransactionPriv = "0xc9668ccd35fc20587aa37a48838b48ccc13cf14dd74c8999dd6a480212d5f7ac";
const senderRoleAccountUpdatePriv = "0x9ba8cb8f60044058a9e6f815c5c42d3a216f47044c61a1750b6d29ddc7f34bda";
const senderRoleFeePayerPriv = "0x0e4ca6d38096ad99324de0dde108587e5d7c600165ae4cd6c2462c597458c2b8";
const receiverAddr = "0xc40b6909eb7085590e1c26cb3becc25368e249e9";
const provider = new Web3.providers.HttpProvider("https://public-en-kairos.node.kaia.io");
const web3 = new Web3(provider);
const txAccount = web3.eth.accounts.privateKeyToAccount(senderRoleTransactionPriv);
async function main() {
let tx = {
type: TxType.ValueTransfer,
from: senderAddr,
to: receiverAddr,
value: toPeb("0.01", "KLAY"),
gasLimit: 100000,
};
const signResult = await txAccount.signTransaction(tx);
console.log("signedTx", signResult.transactionHash);
const receipt = await web3.eth.sendSignedTransaction(signResult.rawTransaction);
console.log("receipt", receipt);
const sig = signResult.signature;
const addr2 = await web3.klay.recoverFromTransaction(senderAddr, sig, "latest");
console.log("recoveredAddr rpc", addr2, addr2.toLowerCase() === senderAddr);
}
main().catch(console.error);

output

❯ js SignTxWithRoleBasedExample.js
rawTx 0x08f88641850ba43b7400830186a094c40b6909eb7085590e1c26cb3becc25368e249e9872386f26fc10000945bd2fb3c21564c023a4a735935a2b7a238c4cceaf847f8458207f6a04886eb1e6d8d5ee59fe4d125b40080409c3341fdc0a7e04b612e7d802edbeaeba0415c08f73a3789f6c27177bb5326579ffbe96f8e0db7090b08ce2fe059d949a9
sentTx 0x3f7ee99c699ad2143bf0fac72dac1ff689c992e382e4705f7366aceaecc09477
receipt {
to: '0xC40B6909EB7085590E1c26Cb3beCC25368e249E9',
from: '0x5bD2fb3c21564C023A4A735935a2B7A238C4cCEA',
contractAddress: null,
transactionIndex: 2,
gasUsed: BigNumber { _hex: '0x5208', _isBigNumber: true },
logsBloom: '0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000',
blockHash: '0x74c7b258b81b75866cfa0b60a08be9aa23cdbd113eb314b2258b65f00475790e',
transactionHash: '0x3f7ee99c699ad2143bf0fac72dac1ff689c992e382e4705f7366aceaecc09477',
logs: [],
blockNumber: 152257043,
confirmations: 1,
cumulativeGasUsed: BigNumber { _hex: '0x062366', _isBigNumber: true },
effectiveGasPrice: BigNumber { _hex: '0x05d21dba00', _isBigNumber: true },
status: 1,
type: 0,
byzantium: true
}
recoveredAddr rpc 0x5bd2fb3c21564c023a4a735935a2b7a238c4ccea true

페이지를 개선해 주세요