@dashevo/wallet-lib/examples/offline-wallet.js

Light wallet library for Dash

const { Wallet } = require('../src/index');
const logger = require('../src/logger');

const mnemonic = 'never citizen worry shrimp used wild color snack undo armed scout chief';
const walletOpts = {
  offlineMode: true,
  network: 'testnet',
  mnemonic,
  // HDPublicKey:
};
const wallet = new Wallet(walletOpts);
wallet.getAccount({ index: 0 }).then((account) => {
  /**
   * Simple offline service that simulates an offline usage
   * which generates new addresses from an ExtendedPubKey.
   */
  const startService = () => {
    // Import a tx that happened in the network
    // See for the format
    const addresses = {};
    account.storage.importAddresses(addresses, account.walletId);

    // Get any specific address
    const specific = account.getAddress(100);
    logger.info('Specific', specific);

    // Generate a batch of all 200 first addreses
    const poolAddresses = [];
    for (let i = 0; i <= 200; i += 1) {
      poolAddresses.push(account.getAddress(i).address);
    }
    logger.info('Pregenerated pool of addr', poolAddresses);

    const addrPool = [];
    // get 10 unused address
    for (let i = 0; i < 10; i += 1) {
      const skip = i;
      addrPool.push(account.getUnusedAddress('external', skip));
    }
    logger.info('Pool of unused addr', addrPool);
  };
  startService();
});