sendasinglefiletojson

Future<File> saveCredential(User element) async{

      UserJsonModel JsonFormatUser = UserJsonModel(element.userName, element.email, element.country, element.bio, element.gender, element.photoUrl, element.id, element.lastSeen.toString(), element.isOnline ? 'true' : 'false', element.time.toString());

    final file= await FetchFile("credential.json")._localFile;
    print(file.path.toString());
      Map<String, dynamic> userJsonMap = JsonFormatUser.toJson();
      var encodedJSONString = json.encode(userJsonMap);
    return file.writeAsString('$encodedJSONString');
  }

}