fetchConfiguration method

@override Future<Map<String, dynamic>> fetchConfiguration(String apiKey, String customerID)

Fetch configuration - matches your React Native fetchConfiguration

Implementation

@override
Future<Map<String, dynamic>> fetchConfiguration(String apiKey, String customerID) async {
  try {
    final result = await methodChannel.invokeMethod('fetchConfiguration', {
      'apiKey': apiKey,
      'customerID': customerID
    });
    return Map<String, dynamic>.from(result);
  } on PlatformException catch (e) {
    throw Exception('CONFIG_ERROR: ${e.message}');
  }
}