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test.js
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test.js
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const Transport = require("@ledgerhq/hw-transport-node-hid").default;
const Eth = require("@ledgerhq/hw-app-eth").default;
const getProvider = require("./utils/provider");
const signTransactionByLedger = async () => {
try {
const transport = await Transport.create();
const eth = new Eth(transport);
const web3 = await getProvider();
const hdPath = "m/44'/60'/0'/0/0";
const address = (await eth.getAddress(hdPath)).address;
console.log(`Ledger address: ${address}`);
// console.log(eth);
const tx = {};
tx.from = address;
tx.to = "0x5dc93ef0344a9d86fe6e172566a744e8e3078bf8";
tx.value = web3.utils.toWei("0.1", "ether");
tx.gas = "21000";
tx.gasPrice = await web3.eth.getGasPrice();
tx.nonce = await web3.eth.getTransactionCount(tx.from);
tx.chainId = await web3.eth.getChainId();
console.log(tx);
const {ledgerService} = require("@ledgerhq/hw-app-eth");
const Utils = require("ethereumjs-util");
const RLP = Utils.rlp;
const txRLP = RLP.encode([tx.chainId, tx.nonce, tx.from, tx.to, tx.value, tx.gas, tx.gasPrice]);
const typeTxHex = "0x02" + Utils.bufferToHex(txRLP).slice(2);
const txHash = Utils.bufferToHex(Utils.toBuffer(typeTxHex));
const resolution = await ledgerService.resolveTransaction(txHash);
console.log(resolution);
const signedTx = await eth.signTransaction(hdPath, txHash, resolution);
console.log(signedTx);
} catch (error) {
console.error(error.message);
}
};
signTransactionByLedger();