@dashevo/wallet-lib/src/utils/fundWallet.js

Light wallet library for Dash

const EVENTS = require('../EVENTS');

/**
 *
 * @param {Account} walletAccount
 * @param {string} id - transaction id
 * @return {Promise<string>}
 */
function waitForTransaction(walletAccount, id) {
  return new Promise(((resolve) => {
    const listener = (event) => {
      const { payload: { transaction } } = event;

      if (transaction.id === id) {
        walletAccount.removeListener(EVENTS.FETCHED_CONFIRMED_TRANSACTION, listener);

        resolve(transaction.id);
      }
    };

    walletAccount.on(EVENTS.FETCHED_CONFIRMED_TRANSACTION, listener);
  }));
}

/**
 *
 * @param {Wallet} faucetWallet
 * @param {Wallet} recipientWallet
 * @param {number} amount
 * @return {Promise<void>}
 */
async function fundWallet(faucetWallet, recipientWallet, amount) {
  const faucetAccount = await faucetWallet.getAccount();
  const recipientAccount = await recipientWallet.getAccount();
  const transaction = await faucetAccount.createTransaction({
    satoshis: amount,
    recipient: recipientAccount.getAddress().address,
  });

  await Promise.all([
    faucetAccount.broadcastTransaction(transaction),
    waitForTransaction(recipientAccount, transaction.id),
  ]);

  return transaction.id;
}

module.exports = fundWallet;