wallet 0.0.18

Crypto wallet package for Bitcoin, Ethereum and Tron written in pure Dart.

Crypto wallet package for Bitcoin, Ethereum and Tron written in pure Dart.

Getting started

In your pubspec.yaml file add:

dependencies:
  wallet: any

Usage

Create Tron address from Mnemonic and Passphrase

import 'package:wallet/wallet.dart' as wallet;

final mnemonic = '<YOUR MNEMONIC>';
final passphrase = '';

final seed = wallet.mnemonicToSeed(mnemonic, passphrase: passphrase);
final master = wallet.ExtendedPrivateKey.master(seed, wallet.xprv);
final root = master.forPath("m/44'/195'/0'/0/0");

final privateKey = wallet.PrivateKey((root as wallet.ExtendedPrivateKey).key);
final publicKey = wallet.tron.createPublicKey(privateKey);
final address = wallet.tron.createAddress(publicKey);

print(address);

Validate a Tron address

import 'package:wallet/wallet.dart' as wallet;

const address = 'TCB9WxaRSMEXiVaVys9DEAXbRc6JNuKpjA';
final isValid = wallet.isValidTronAddress(address);

print(isValid); // True

Validate an Ethereum address

import 'package:wallet/wallet.dart' as wallet;

const ethAddress = '0x52908400098527886E0F7030069857D2E4169EE7';
// Verify EIP-55 checksum (accepts lowercase or uppercase as valid)
final isValidEth = wallet.EthereumAddress.isEip55ValidEthereumAddress(ethAddress);
print(isValidEth); // True

// Parse and optionally enforce checksum
final address = wallet.EthereumAddress.fromHex(
  ethAddress,
  enforceEip55: true,
);
print(address); // Mixed-case checksummed address without 0x prefix