rawSign

Future<String> rawSign({
  required String chainId,
  required String message,
  String? signatureApprovalMemo,
})

import 'package:portal_flutter/portal_flutter.dart';

final portal = Portal();

// Message must be hex-encoded
// "test" in hex is "74657374"
final signature = await portal.rawSign(
  chainId: 'eip155:1',
  message: '74657374',
  signatureApprovalMemo: 'Signing test message',
);

print('Raw signature: $signature');

// SECP256K1 signing (Ethereum)
final ethSignature = await portal.rawSign(
  chainId: 'eip155:1',
  message: '74657374',
);

// ED25519 signing (Solana)
final solSignature = await portal.rawSign(
  chainId: 'solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp',
  message: '74657374',
);