Ethereum 브릿지

"0x000000000000000000000000{여기에_0X_PREFIX_없이_ETHEREUM_주소}";
// 예시
"0x000000000000000000000000e28b3b32b6c345a34ff64674606124dd5aceca30";

import { PeggyContract } from "@injectivelabs/contracts";

const contract = new PeggyContract({
  ethereumChainId,
  address: peggyContractAddress,
  web3: web3 as any,
});

import { getNetworkInfo, Network } from "@injectivelabs/networks";
import {
  TxClient,
  TxRestApi,
  createTransaction,
} from "@injectivelabs/sdk-ts/core/tx";
import {
  PrivateKey,
} from "@injectivelabs/sdk-ts/core/accounts";
import {
  MsgSendToEth,
} from "@injectivelabs/sdk-ts/core/modules";
import {
  ChainRestAuthApi,
} from "@injectivelabs/sdk-ts/client/chain";
import { toChainFormat, getDefaultStdFee } from "@injectivelabs/utils";

/** MsgSendToEth 예시 */
(async () => {
  const network = getNetworkInfo(Network.Mainnet); // rpc/lcd 엔드포인트 가져오기
  const privateKeyHash =
    "f9db9bf330e23cb7839039e944adef6e9df447b90b503d5b4464c90bea9022f3";
  const privateKey = PrivateKey.fromPrivateKey(privateKeyHash);
  const injectiveAddress = privateKey.toBech32();
  const ethAddress = privateKey.toHex();
  const publicKey = privateKey.toPublicKey().toBase64();

  /** 계정 세부 정보 **/
  const accountDetails = await new ChainRestAuthApi(network.rest).fetchAccount(
    injectiveAddress
  );

  /** 메시지 준비 */
  const amount = {
    amount: toChainFormat(0.01).toFixed(),
    denom: "inj",
  };
  const bridgeFee = {
    amount: toChainFormat(0.01).toFixed(),
    denom: "inj",
  };

  const msg = MsgSendToEth.fromJSON({
    amount,
    bridgeFee,
    injectiveAddress,
    address: ethAddress,
  });

  /** 트랜잭션 준비 **/
  const { signBytes, txRaw } = createTransaction({
    message: msg,
    pubKey: publicKey,
    fee: getDefaultStdFee(),
    sequence: parseInt(accountDetails.account.base_account.sequence, 10),
    accountNumber: parseInt(
      accountDetails.account.base_account.account_number,
      10
    ),
    chainId: network.chainId,
  });

  /** 트랜잭션 서명 */
  const signature = await privateKey.sign(Buffer.from(signBytes));

  /** 서명 첨부 */
  txRaw.signatures = [signature];

  /** 트랜잭션 해시 계산 */
  console.log(`트랜잭션 해시: ${TxClient.hash(txRaw)}`);

  const txService = new TxRestApi(network.rest);

  /** 트랜잭션 시뮬레이션 */
  const simulationResponse = await txService.simulate(txRaw);

  console.log(
    `트랜잭션 시뮬레이션 응답: ${JSON.stringify(
      simulationResponse.gasInfo
    )}`
  );

  /** 트랜잭션 브로드캐스트 */
  const txResponse = await txService.broadcast(txRaw);

  if (txResponse.code !== 0) {
    console.log(`트랜잭션 실패: ${txResponse.rawLog}`);
  } else {
    console.log(
      `브로드캐스트된 트랜잭션 해시: ${JSON.stringify(txResponse.txhash)}`
    );
  }
})();