getString method

Future<String?> getString(String key)

Retrieve a String value

Returns null if key doesn't exist Throws SecureStorageException if decryption fails

Implementation

Future<String?> getString(String key) async {
  _checkInit();
  try {
    // Check cache first
    if (_cache.containsKey(key)) {
      final encrypted = _cache[key]!;
      return _decrypt(encrypted);
    }

    return await _withRetry(() async {
      final encrypted = await _secureStorage.read(key: key);
      if (encrypted == null) return null;

      _updateCache(key, encrypted);
      return _decrypt(encrypted);
    });
  } catch (e) {
    throw SecureStorageException(
      'Failed to retrieve string for key: $key',
      e,
    );
  }
}