getBalances

Future<List<PortalBalance>> getBalances(String chainId)

import 'package:portal_flutter/portal_flutter.dart';

final portal = Portal();

final balances = await portal.getBalances('eip155:1');

for (final balance in balances) {
  print('${balance.symbol ?? balance.contractAddress}: ${balance.balance}');
}

Future<void> printBalancesAcrossChains(Portal portal) async {
  final chains = ['eip155:1', 'eip155:137', 'solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp'];

  for (final chainId in chains) {
    final balances = await portal.getBalances(chainId);
    print('--- $chainId ---');
    for (final balance in balances) {
      final label = balance.symbol ?? balance.name ?? balance.contractAddress;
      print('  $label: ${balance.balance}');
    }
  }
}

final balances = await portal.getBalances('eip155:1');

final nonZero = balances
    .where((b) => (BigInt.tryParse(b.balance) ?? BigInt.zero) != BigInt.zero)
    .toList();

print('${nonZero.length} tokens with non-zero balances');

try {
  final balances = await portal.getBalances('eip155:1');
  // Use the balances...
} on PortalException catch (e) {
  print('Failed to fetch balances: ${e.code} - ${e.message}');
}