CODEWITHSUNDEEP
flutterdartblocflutter-bloccubit
Matthew Trent
Matthew Trent

Reputation: 3274

Need to get state data from Authentication Cubit inside another Cubit. In essence, I need to read the state

Note: I've seen similar questions all over Stackoverflow, but none of them exactly answer this.

Context:

I have an authentication cubit that has a variety of user states:

/// User exists, includes user's access and refresh tokens.
class User extends AuthenticationState {
  final Tokens? tokens;
  final bool justRegistered;
  final bool tokensAvailable;

  User({
    required this.tokens,
    this.justRegistered = false,
    this.tokensAvailable = true,
  });

  @override
  List<Object?> get props => [tokens, justRegistered, tokensAvailable];
}

/// No authenticated user exists.
class NoUser extends AuthenticationState {}

/// User is currently being registered or signed in.
class UserLoading extends AuthenticationState {}

Problem:

I have a Posts Cubit that needs to manage API calls and pass in the current user's access token to them in order to work. However, this access token is only stored inside the Authentication Cubit's state (in the User state, inside the tokens variable).

Is there a (good practice) way to get this token from the Authentication Cubit's User state inside the Post Cubit so I can use it to send API requests that require tokens for authentication to return posts?

Thanks!

Upvotes: 0

Views: 1481

Answers (1)

Jitendra Prajapati
Jitendra Prajapati

Reputation: 1163

You can create a class something like API Provider and authenticateService, pass and use in your Cubit to call API :

For example:

 Future<Response<dynamic>> _callAndRetryDelete(
    String url, {
    int validStatus,
    int retries,
  }) async =>
      retry(
        () async {
          final Map<String, String> authHeaders = await _authenticationService.getAuthHeaders;
          if (authHeaders == null) {
            throw ApiError('Could not get authorization', endpoint: url, method: HTTPMethod.Delete);
          }
          _client.options = _options(success: validStatus, authHeaders: authHeaders);
          try {
            return await _client.delete(url);
          } on DioError catch (error) {
            final String message = _error(error);
            throw ApiError(message, endpoint: url, method: HTTPMethod.Delete);
          }
        },
        maxAttempts: retries,
      );

AuthenticaionService.class

Future<void> _doLogin(Map<String, dynamic> params) async {

  final Response<Map<String, dynamic>> response =
      await _handler.post(_loginEndpoint, body: params, 
           validStatus: 200);

  final Map<String, String> res =
      response?.data?.map((String key, dynamic value) => MapEntry<String, String>(key, value.toString()));

  final Authentication authentication = Authentication.parse(res);
  await _parseAndStore(authentication);
  return authentication;}

AuthCubit:

Future<void> signIn() async => cubitAction(
action: () async {
  emit(AuthenticationLoading());
  await _authenticationService.signIn(payload);
  emit(AuthenticationDone);
}

);

Upvotes: 0

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