namillum/needing-organisation/examples/js-library-examples/node/signBatchTransaction.js

Bubble Protocol SDK

//  Copyright (C) 2018 Zilliqa
//
//  This file is part of Zilliqa-Javascript-Library.
//
//  This program is free software: you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation, either version 3 of the License, or
//  (at your option) any later version.
//
//  This program is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.
//
//  You should have received a copy of the GNU General Public License
//  along with this program.  If not, see <https://www.gnu.org/licenses/>.

const { BN, Long, bytes, units } = require("@zilliqa-js/util");
const { Zilliqa } = require("@zilliqa-js/zilliqa");
const {
  toBech32Address,
  getAddressFromPrivateKey,
} = require("@zilliqa-js/crypto");

const zilliqa = new Zilliqa("https://dev-api.zilliqa.com");

const chainId = 333; // chainId of the developer testnet
const msgVersion = 1; // current msgVersion
const VERSION = bytes.pack(chainId, msgVersion);

// Populate the wallet with an account
const privateKey =
  "deb5c896228f8515146aa16f94a558ba14e52d8496b4b267b2d59cd9036f39a6";

zilliqa.wallet.addByPrivateKey(privateKey);

const address = getAddressFromPrivateKey(privateKey);
console.log(`My account address is: ${address}`);
console.log(`My account bech32 address is: ${toBech32Address(address)}`);

async function testSignBatchTransaction() {
  try {
    let txList = [];

    for (let i = 0; i < 2; i++) {
      // create a new transaction object
      const tx = zilliqa.transactions.new(
        {
          version: VERSION,
          toAddr: "0xA54E49719267E8312510D7b78598ceF16ff127CE",
          amount: new BN(units.toQa("1", units.Units.Zil)),
          gasPrice: units.toQa("2000", units.Units.Li),
          gasLimit: Long.fromNumber(50),
        },
        false
      );

      txList.push(tx);
    }

    console.log("Batch transactions created:");
    console.log(txList);
    console.log("Signing batch transactions...");

    // sign the batch transaction sequentially
    const batchResult = await zilliqa.wallet.signBatch(txList);

    console.log("Transactions signed...\n");
    for (const signedTx of batchResult) {
      // nonce must be different
      console.log("The signed transaction nonce is: %o", signedTx.nonce);
      console.log(
        "The signed transaction signature is: %o\n",
        signedTx.signature
      );
    }
  } catch (err) {
    console.error(err);
  }
}

testSignBatchTransaction();