Hey I have this app where I can update status, and I use http.put method, but it takes forever to response. I got this error
error
And here is the code for http.put
Future<void> mapEventToState(
Emitter<ReportStatusState> emit, ReportStatusEvent event) async {
emit(ReportStatusLoading());
ReportStatusPut statusPut = event.statusPutBody;
// ReportStatusModel model =
// await apiAuthRepository.updateReportStatus(statusPut, event.id);
ReportStatusModel model = await updateReportStatus({'biaya': '0', 'status': 'SELESAI'}, event.id);
print(model);
if (!model.success) {
emit(ReportStatusFailure(model.message));
}
print(model.code);
emit(ReportStatusSuccess());
}}
Future<ReportStatusModel> updateReportStatus(
Map data, String id) async {
final SharedPreferencesManager sharedPreferencesManager =
locator<SharedPreferencesManager>();
String? token =
sharedPreferencesManager.getString(SharedPreferencesManager.keyAccessToken);
try {
final response = await http.put(
Uri.parse('https://api.komplekku.com/officer/api/report/v1/$id'),
body: json.encode(data),
headers: {'Authorization': 'Bearer $token'});
return ReportStatusModel.fromJson(json.decode(response.body));
} catch (e) {
throw Exception(e);
}
}
There is nothing wrong with the API, I already check using Postman and it worked perfectly fine, Anyone know what went wrong?
Related
After login i setting user token to my user Secure storage. Like :
Future<AuthResponseModel?> login(AuthRequstModel model) async {
try {
Response response = await _dio.post(loginPath, data: model);
if (response.statusCode == 200) {
final AuthResponseModel authResponseModel = AuthResponseModel.fromJson(response.data);
if (authResponseModel.success!) {
await UserSecureStorage.setField("token", authResponseModel.token);
}
return AuthResponseModel.fromJson(response.data);
}
return null;
} catch (e) {
return null;
}
}
User Secure Storage =>
class UserSecureStorage {
static const _storage = FlutterSecureStorage();
static Future setField(String key, value) async {
await _storage.write(key: key, value: value);
}
static Future<String?> getField(key) async {
return await _storage.read(key: key);
}
But problem is when i want to make apiservice and when i want to auth token inside header of dio, I cant access it becouse its a future<String?> function. But i cant use await coz its inside of baseoption. Like :
class ApiService {
final _dio = Dio(BaseOptions(headers: {
'authorization': 'Bearer ${UserSecureStorage.getField("token")}', //I cant access here its only giving instance.
}));
Future<Response?> get(String path) async {
try {
Response response = await _dio.get('${ApiConstants.BASE_URL}$path');
if (response.statusCode == 200) {
return response;
}
return null;
} on DioError catch (e) {
return null;
}
}
What can i do for solve that problem ? I tried use .then(value=>value) after tried get token but didnt work too. Thanks for responses!
I think token is not getting updated because _dio is already intitalized.
Try to request for token when dio request is made like :
class ApiService {
final _dio = Dio();
Future<Response?> get(String path) async {
try {
Response response = await _dio.get('${ApiConstants.BASE_URL}$path', options: Options(headers: {"authorization": "Bearer ${UserSecureStorage.getField("token")}"}));
if (response.statusCode == 200) {
return response;
}
return null;
} on DioError catch (e) {
return null;
}
}
Use options in get method to add headers for a single request or interceptors for all requests.
I think that it is not an issue easily solvable, I would try with two different methods, you can maintain the token in a state manager such as Provider so you don't have to rely on an async function to retrive it, but this of course add in the code the state manager structure that complicates thing a little.
A bit more naive way to solve this could be to include a async initializator in the ApiService class such this
class ApiService {
late final _dio;
Future<void> init() async {
_dio = Dio(BaseOptions(headers: {
'authorization': 'Bearer ${UserSecureStorage.getField("token")}', //I cant access here its only giving instance.
}));}
Future<Response?> get(String path) async {
try {
Response response = await _dio.get('${ApiConstants.BASE_URL}$path');
if (response.statusCode == 200) {
return response;
}
return null;
} on DioError catch (e) {
return null;
}
}
And this introduce us a new issue, we have to call init everytime the class ApiService is instantiated, to solve this you could use the package get_it which grants you the possibility to instatiate only once the class and access it from everywhere in your project.
I hope this will help you solve your problem
your are getting instance because UserSecureStorage.getField("token") is future so you can get token when you put await keyword
so try like this
await UserSecureStorage.getField("token")
I have the following Flutter & Dart code function, which sends a request to the server:
Future<void> autoAuth(BuildContext ctx) async {
final url = Uri.parse('${this._baseURL.toString()}/auto-auth');
try {
final deviceStorage = await SharedPreferences.getInstance();
if (deviceStorage.getString('refreshToken') == null) {
return this._setUser(null);
}
final response = await http.post(url, headers: {
'Authorization': 'Bearer ${deviceStorage.getString('refreshToken')!}',
}).timeout(const Duration(seconds: 3));
final Map<String, dynamic> responseBody = json.decode(response.body);
if (responseBody['success']) {
this._refreshAccessToken(ctx, deviceStorage);
return this._setUser(new User(
id: responseBody['data']['id'],
isSubscribed: responseBody['data']['isSubscribed'],
playlistId: responseBody['data']['playlistId'],
));
}
this._setUser(null);
} on SocketException {
this._setUser(null);
throw Error();
} on TimeoutException {
this._setUser(null);
throw Error();
} catch (_) {
this._setUser(null);
}
}
Note, that url is wrong intentionally, so the request will timeout.
But, for this, I coded: .timeout(...) on the future request. So, basically, after 3 secnods it should caught by on TimeoutException exception catch.
It does so. However, after something like 1 minute (probably some default timeout of http request in dart), I get an uncaught exception because the request has timed-out. Where Am I wrong?
This is because you are using it in the wrong way. The .timeout code you use, is generic timeout for any future. Thus, you catch the error of the future timeout, but you don't catch the error being generated from the http request timeout.
To use it correctly, first add the following import: import 'package:http/io_client.dart' as http;
Then change the code to:
final ioClient = HttpClient();
ioClient.connectionTimeout = const Duration(seconds: 3);
final client = http.IOClient(ioClient);
final response = await client.post(url, headers: {
'Authorization': 'Bearer ${deviceStorage.getString('refreshToken')!}',
});
I have declared a class to make api requests using flutter Dio as follows.
class DioUtil {
static Dio _instance;
static Dio getInstance() {
if (_instance == null) {
_instance = createDio();
}
return _instance;
}
static Dio createDio() {
var dio = Dio();
dio.interceptors.add(InterceptorsWrapper(onRequest: (options, handler) {
// Do something before request is sent
return handler.next(options); //continue
}, onResponse: (response, handler) {
// Do something with response data
return handler.next(response); // continue
}, onError: (DioError e, handler) async {
if (e.response != null) {
if (e.response.statusCode == 401) {
var dio = DioUtil.getInstance();
dio.interceptors.requestLock.lock();
dio.interceptors.responseLock.lock();
RequestOptions requestOptions = e.requestOptions;
await refreshToken();
Repository repository = Repository();
var accessToken = await repository.readData("accessToken");
final opts = new Options(
method: requestOptions.method
);
dio.options.headers["Authorization"] = "Bearer " + accessToken;
dio.interceptors.requestLock.unlock();
dio.interceptors.responseLock.unlock();
dio.request(requestOptions.path,
options: opts,
data: requestOptions.data,
queryParameters: requestOptions.queryParameters);
}//TODO: handle else clause
}
}));
return dio;
}
static refreshToken() async {
Response response;
Repository repository = Repository();
var dio = Dio();
final Uri apiUrl = Uri.parse(BASE_PATH + "auth/reIssueAccessToken");
var refreshToken = await repository.readData("refreshToken");
dio.options.headers["Authorization"] = "Bearer " + refreshToken;
response = await dio.postUri(apiUrl);
if (response.statusCode == 200) {
LoginResponse loginResponse =
LoginResponse.fromJson(jsonDecode(response.toString()));
repository.addValue('accessToken', loginResponse.data.accessToken);
repository.addValue('refreshToken', loginResponse.data.refreshToken);
} else {
print(response.toString());
}
}
}
and I use flutter bloc pattern and my bloc is as follows.
class OurClassBloc extends Bloc<OurClassEvent, OurClassState> {
OurClassBloc(OurClassState initialState) : super(initialState);
Repository repository = Repository();
#override
Stream<OurClassState> mapEventToState(
OurClassEvent event,
) async* {
if (event is GetClasses) {
yield* _getClassCategories(event);
}
}
Stream<OurClassState> _getClassCategories(GetClasses event) async* {
Response response;
var dio = DioUtil.getInstance();
final String apiUrl = (BASE_PATH + "classCategories");
var accessToken = await repository.readData("accessToken");
Map<String, dynamic> map = {"active": event.active};
dio.options.headers["Authorization"] = "Bearer " + accessToken;
dio.options.headers["Accept"] = "*/*";
try {
response = await dio.get(apiUrl, queryParameters: map);
if (response.statusCode == 200) {
OurClassResponse loginResponse =
OurClassResponse.fromJson(jsonDecode(response.toString()));
yield OurClassSuccess(loginResponse);
}
if (response.statusCode >= 400) {
yield OurClassFailed();
}
} catch (e) {
yield OurClassFailed();
}
}
}
When I make the requests with valid access token, I get 200 status code in bloc class and api works fine.when the token is expired, the dio class correctly gets the new token, make the same api call with new token successfully and inside the below callback I get the correct response also.
onResponse: (response, handler) {
return handler.next(response);
}
but response doesn't comes to bloc class. Though it returned the response by calling return handler.next(response);,it is not coming to response variable inside _getClassCategories method.I expect the correct response should come to the response variable in bloc class for both scenarios:
makes the api call with valid token.
makes the api call with expired token.
but only scenario 1 is working in my code and hope someone here can help me to fix this.
EDIT- this works fine with dio previous version(3.0.10) - code
dio.request(requestOptions.path,
options: opts,
data: requestOptions.data,
queryParameters: requestOptions.queryParameters);
This line creates a new request with no relation to the original one. If the request succeeds, there is no code listening for a response. If you want the original caller to receive anything, you will need to forward the response to the original handler:
try {
final response = await dio.request(requestOptions.path,
options: opts,
data: requestOptions.data,
queryParameters: requestOptions.queryParameters);
handler.resolve(response);
} on DioError catch (error) {
handler.next(error); // or handler.reject(error);
}
Also, be sure to forward the error to the handler in non-401 cases as well. Dio 4.0.0 interceptors don't automatically forward anything.
i am beginner in flutter , i started to call an api from rapid api for soccer results , it's required to add many headers to call this api , when i put these headers , i had an error in syntax
here what i have tried , nothing worked
getResults() async {
http.Response response = await http.get(
'https://api-football-v1.p.rapidapi.com/v2/fixtures/league/2',
headers: ({'x-rapidapi-key': 'e8ece1dbcdmshd1d6f778c1397c5p113b22jsn8361690f93a2'},
{'x-rapidapi-host': 'api-football-v1.p.rapidapi.com'},
{'useQueryString': true}));
I am trying to find the right syntax to make these headers works with my request
import 'package:wnetworking/wnetworking.dart';
class RapidAPI {
static const _base = 'https://api-football-v1.p.rapidapi.com/v2';
static const _apiKey = 'e8ece1dbcdmshd1d6f778c1397c5p113b22jsn8361690f93a2';
static Future<void> fetchFixturesLeague2() async {
final url = '$_base/fixtures/league/2';
print('Start fetching...');
await HttpReqService.getJson<Map<String, dynamic>>(url, headers: {
'x-rapidapi-host': 'api-football-v1.p.rapidapi.com',
'x-rapidapi-key': _apiKey,
})
.then((response) {
if (response != null) {
print('${response['api']['fixtures'].length} items');
}
})
.whenComplete(() => print('Fetching done.'));
}
}
void main(List<String> args) async {
await RapidAPI.fetchFixturesLeague2();
print('Job done!');
}
Result:
Start fetching...
380 items
Fetching done.
Job done!
Put them in a single map:
headers: (
{'x-rapidapi-key': 'e8ece1dbcdmshd1d6f778c1397c5p113b22jsn8361690f93a2',
'x-rapidapi-host': 'api-football-v1.p.rapidapi.com',
'useQueryString': true}
)
I am facing 2 problems with the below code and I think both are related.
createFunction is showing an error -
"This function has a return type of 'FutureOr< bool >', but doesn't end with a return statement. Try adding a return statement, or changing the return type to 'void'." - I need to return true or false, so I have to use return type bool.
When the function is executed, it runs smoothly till the PROBLEM AREA (marked in the code). Here it returns null and then comes back to execute .then . I need to run .then right after http.post is executed. At the end of the code it should return true / false.
Any help will be highly appreciated.
Future<bool> createFunction(image) async {
var request = new http.MultipartRequest("POST", Uri.parse(_urlImage));
request.files.add(
await http.MultipartFile.fromPath('imagefile', image));
var response = await request.send().catchError((error) {
throw error;
});
response.stream.transform(utf8.decoder).listen((value) async {
return await http
.post(
_url,
headers: {
'content-type': 'application/json',
'authorization': 'auth'
},
body: json.encode({data}),
)
///// PROBLEM AREA //////
.then((value) async {
final _extractedData = await jsonDecode(value.body);
if (value.statusCode == 201) {
return true;
} else {
return false;
}
}).catchError((error) {
throw error;
});
});
}
Ok, for the next visitors to this page, the correct usage of MultipartRequest class should like this:
var uri = Uri.parse('https://example.com/create');
var request = http.MultipartRequest('POST', uri)
..fields['user'] = 'nweiz#google.com'
..files.add(await http.MultipartFile.fromPath(
'package', 'build/package.tar.gz',
contentType: MediaType('application', 'x-tar')));
var response = await request.send();
if (response.statusCode == 200) print('Uploaded!');