I am trying to save a Token variable in a LoginResponseModel but I am getting:

Error: 'await' can only be used in 'async' or 'async*' methods.
    await storage.write(key: 'Token', value: mapOfBody['key']);
    ^^^^^

Here is the Class:

class LoginResponseModel {
  dynamic? key;
  List<dynamic>? non_field_errors;
  LoginResponseModel({this.key, this.non_field_errors});

  LoginResponseModel.fromJson(mapOfBody) {
    key:
    mapOfBody['key'];
    non_field_errors:
    mapOfBody['non_field_errors'];
    print(mapOfBody['key']);

    // Create storage

    final storage = const FlutterSecureStorage();
    // Write value
    await storage.write(key: 'Token', value: mapOfBody['key']);
  }

  Map<String, dynamic> toJson() {
    final _data = <String, dynamic>{};
    _data['key'] = key;
    _data['non_field_errors'] = non_field_errors;
    return _data;
  }
}

to access the value:

var value = LoginResponseModel.storage.read(key: 'Token');

How can I fix the await problem so that I can easily access the token?

CodePudding user response：

Because fromJson() is not an async function, so you cannot use await inside. You should write to the storage in another part, like repository.

CodePudding user response：

/// try out this way

static Future<LoginResponseModel> loginApiCall() async {
        try {
          var result = await http.get(Uri.parse('Your Url'));
          LoginResponseModel dataModel = LoginResponseModel.fromJson(result);
          await storage.write(key: 'Token', value: dataModel.token);
          return dataModel;
        } catch (e) {
          rethrow;
        }
      }