Restore Wallet from Backup

Minimal Flutter restore flow using BackupService.restore.

Example (PIN unlock)

import 'package:blockchain_kit_sdk_flutter_plugin/blockchain_kit_sdk_flutter_plugin.dart';

final sdk = BlockchainKitSdk();
const groupId = 'YOUR_GROUP_ID';

final strategy = FlutterUnlockStrategy(
  'pin',
  null, // credentialId
  null, // recoveryId
  null, // kekId
  '123456',
  null, // password
);

final result = await sdk.backupService.restore(groupId, strategy, null);

result.fold(
  (wallets) {
    if (wallets.isEmpty) {
      print('Restore succeeded but no wallets returned');
      return;
    }
    print('Restored wallet: ${wallets.first.groupId}');
  },
  (error) {
    print('Restore failed: ${error.message}');
  },
);

Switching strategy

• Passkey-style: use strategy type all_passkeys
• Password-style: use strategy type password and set password
• Guardian escrow: use strategy type guardian_gated_escrow_no_gate with recoveryId + kekId