@prathammahajan/blockchain-integration/examples/wallet-management.js

🚀 Comprehensive blockchain integration suite with multi-chain cryptocurrency support, NFT marketplace, smart contracts, DeFi protocols, and enterprise-grade wallet management

const BlockchainEngine = require('../src/index');

async function walletManagementExample() {
  try {
    // Initialize blockchain engine
    const blockchain = new BlockchainEngine({
      networks: {
        ethereum: {
          enabled: false,
          rpc: 'https://mainnet.infura.io',
          chainId: 1
        }
      },
      wallet: {
        enabled: true,
        encryption: false,
        backup: true
      },
      nft: {
        enabled: false
      },
      smartContracts: {
        enabled: false
      },
      defi: {
        enabled: false
      },
      security: {
        enabled: false
      }
    });

    // Wait for initialization
    await new Promise(resolve => {
      blockchain.on('initialized', resolve);
    });

    console.log('✅ Blockchain Engine initialized');

    // Create HD wallet
    const hdWallet = await blockchain.createWallet('hd');
    console.log('✅ HD Wallet created:', hdWallet.address);

    // Create multi-signature wallet
    const multiSigWallet = await blockchain.createWallet('multisig', {
      requiredSignatures: 2,
      totalSigners: 3
    });
    console.log('✅ Multi-sig wallet created:', multiSigWallet.address);

    // Import wallet from private key
    const privateKey = '0x1234567890123456789012345678901234567890123456789012345678901234';
    const importedWallet = await blockchain.importWallet('privatekey', privateKey);
    console.log('✅ Wallet imported:', importedWallet.address);

    // Get wallet balance (skip if networks are disabled)
    try {
      const balance = await blockchain.getWalletBalance(hdWallet.walletId, 'ethereum');
      console.log('✅ Wallet balance:', balance);
    } catch (error) {
      console.log('⚠️ Wallet balance check skipped (networks disabled):', error.message);
    }

    // List all wallets
    const wallets = await blockchain.walletManager.listWallets();
    console.log('✅ All wallets:', wallets);

    // Backup wallet
    const backup = await blockchain.walletManager.backupWallet(hdWallet.walletId);
    console.log('✅ Wallet backed up:', backup);

    // Shutdown
    await blockchain.shutdown();
    console.log('✅ Blockchain Engine shutdown');

  } catch (error) {
    console.error('❌ Error:', error.message);
  }
}

// Run the example
walletManagementExample();