validate function

Address validate(String address)

Implementation

Address validate(String address) {
  if (address.length < minLength) {
    throw FormatException(
        'Too short: addresses must be at least $minLength characters');
  }

  /// First try to parse as taproot / segwit
  final prefix = address.substring(0, 2).toLowerCase();
  if (prefix == 'bc' || prefix == 'tb') {
    return validateSegwit(address);
  }

  final codec = Base58CheckCodec.bitcoin();
  Base58CheckPayload decoded;
  try {
    decoded = codec.decode(address);
  } catch (e) {
    throw Base58CheckException(e);
  }
  if (decoded.payload.length != 20) {
    throw FormatException('Invalid Base58 payload length');
  }

  final version = decoded.version;
  if (!versionToType.keys.contains(version)) {
    throw FormatException('Invalid Base58 version');
  }
  return Address(
    versionToType[version]!,
    versionToNetwork[version]!,
    false,
  );
}