log masuk web flutter mendapat pilihan tetapi tidak akan diterbitkan

Kandungan soalan

Saya mempunyai aplikasi yang sedang dibina dan tidak menukar kod log masuk dalam setahun, selepas mengemas kini halaman log masuk flutter saya akan meminta OPTIONS dan pelayan API go mengembalikan 200. Sebelum ini, log OPTIONS tidak muncul dalam pelayan. Ini berlaku dalam pembangunan dan pengeluaran. Pelanggan Linux saya log masuk dengan baik.

Saya membuat perubahan CORS di sini tetapi ia tidak memberi kesan. Permintaan GET berfungsi dengan baik, tetapi tiada permintaan POST pernah sampai ke pelayan.

Ini adalah kesilapan saya:

ClientException: XMLHttpRequest error., uri=https://api.mydomain.com/login

Ini kod sebelah pelayan saya.

r := chi.NewRouter()

r.Use(middleware.RequestID)
r.Use(middleware.Logger)
r.Use(middleware.Recoverer)
r.Use(middleware.URLFormat)
r.Use(render.SetContentType(render.ContentTypeJSON))
r.Use(cors.Handler(cors.Options{
    AllowedOrigins:   []string{"https://*, http://*"},
    AllowedMethods:   []string{"GET", "POST", "PUT", "DELETE", "OPTIONS"},
    AllowedHeaders:   []string{"Accept", "Origin", "Authorization", "Content-Type", "X-CSRF-Token", "X-Requested-With"},
    ExposedHeaders:   []string{"Link"},
    AllowCredentials: false,
    MaxAge:           300, // Maximum value not ignored by any of major browsers
}))

Ini ialah maklumat log masuk Flutter saya:

Future<bool> login(String email, String password, String fcmToken) async {
 try {
  var response = await http.post(
    Uri.parse("$_baseUrl/login"),
    headers: <String, String>{
      'Content-Type': 'application/json; charset=UTF-8',
    },
    body: jsonEncode(
      <String, String>{
        'business_email': email,
        'password': password,
        'token': fcmToken,
      },
    ),
  );

  if (response.statusCode == 200) {
    String jwt = response.body;

    await storage.write(key: 'jwt', value: jwt);

    return true;
  }
} catch (e) {
  logger.d(e);
  return false;
}

return false;
}

Halaman log masuk saya

class Login extends StatefulWidget {
  const Login({
    Key? key,
  }) : super(key: key);

  @override
  State<Login> createState() => _LoginState();
}

class _LoginState extends State<Login> {
  @override
  void initState() {
    WidgetsBinding.instance.addPostFrameCallback(
      (_) => showSnackBar(context),
    );

    super.initState();
  }

  final GlobalKey<FormState> _formKey = GlobalKey();

  final FocusNode _focusNodePassword = FocusNode();
  final TextEditingController _controllerUserEmail = TextEditingController();
  final TextEditingController _controllerPassword = TextEditingController();

  bool _obscurePassword = true;

  bool isLoading = false;

  String? fcmToken = '';

  @override
  Widget build(BuildContext context) {
    var model = LoginModel(
      authenticationService: Provider.of(context, listen: false),
    );

    return Scaffold(
      body: Form(
        key: _formKey,
        child: SingleChildScrollView(
          padding: const EdgeInsets.all(30.0),
          child: Column(
            children: [
              const SizedBox(
                height: 20,
              ),
              SizedBox(
                  //height: 20,
                  width: double.infinity,
                  child: Text(
                    'exactCASE',
                    textAlign: TextAlign.center,
                    style: Theme.of(context).textTheme.headlineLarge,
                  )),
              const SizedBox(height: 30),
              isLoading
                  ? const Center(child: CircularProgressIndicator())
                  : Text(
                      'Login to your account',
                      style: Theme.of(context).textTheme.labelMedium,
                    ),
              const SizedBox(height: 20),
              TextFormField(
                controller: _controllerUserEmail,
                keyboardType: TextInputType.name,
                decoration: InputDecoration(
                  labelText: 'Email',
                  prefixIcon: const Icon(Icons.person_outline),
                  border: OutlineInputBorder(
                    borderRadius: BorderRadius.circular(10),
                  ),
                  enabledBorder: OutlineInputBorder(
                    borderRadius: BorderRadius.circular(10),
                  ),
                ),
                onEditingComplete: () => _focusNodePassword.requestFocus(),
                validator: (String? value) {
                  if (value == null || value.isEmpty) {
                    return "Please enter your email";
                  }
                  return null;
                },
              ),
              const SizedBox(height: 10),
              TextFormField(
                controller: _controllerPassword,
                focusNode: _focusNodePassword,
                obscureText: _obscurePassword,
                keyboardType: TextInputType.visiblePassword,
                decoration: InputDecoration(
                  labelText: "Password",
                  prefixIcon: const Icon(Icons.password_outlined),
                  suffixIcon: IconButton(
                      onPressed: () {
                        setState(() {
                          _obscurePassword = !_obscurePassword;
                        });
                      },
                      icon: _obscurePassword
                          ? const Icon(Icons.visibility_outlined)
                          : const Icon(Icons.visibility_off_outlined)),
                  border: OutlineInputBorder(
                    borderRadius: BorderRadius.circular(10),
                  ),
                  enabledBorder: OutlineInputBorder(
                    borderRadius: BorderRadius.circular(10),
                  ),
                ),
                validator: (String? value) {
                  if (value == null || value.isEmpty) {
                    return "Please enter password.";
                  }

                  return null;
                },
              ),
              const SizedBox(height: 30),
              Column(
                children: [
                  FilledButton(
                    style: FilledButton.styleFrom(
                      minimumSize: const Size.fromHeight(50),
                      shape: RoundedRectangleBorder(
                        borderRadius: BorderRadius.circular(20),
                      ),
                    ),
                    onPressed: () {
                      if (_formKey.currentState?.validate() ?? false) {
                        _login(context, model, _controllerUserEmail.text,
                            _controllerPassword.text);
                      }
                    },
                    child: const Text("Login"),
                  ),
                ],
              ),
            ],
          ),
        ),
      ),
    );
  }

  @override
  void dispose() {
    _focusNodePassword.dispose();
    _controllerUserEmail.dispose();
    _controllerPassword.dispose();
    super.dispose();
  }

  Future<void> _login(BuildContext context, LoginModel model, String email,
      String password) async {
    final navigator = Navigator.of(context);

    if (defaultTargetPlatform != TargetPlatform.linux &&
        defaultTargetPlatform != TargetPlatform.windows) {
      fcmToken = await FirebaseMessaging.instance.getToken();
    }

    setState(
      () {
        isLoading = true;
      },
    );

    fcmToken ??= '';

    var loginSuccess = await model.login(email, password, fcmToken!);

    if (loginSuccess) {
      navigator.pushNamed(RoutePaths.homeTabs);
    } else {
      setState(
        () {
          isLoading = false;
          final snackBar = SnackBar(
              content: const Text('Login Failed!'),
              action: SnackBarAction(
                label: 'OK',
                onPressed: () {},
              ));

          ScaffoldMessenger.of(context).showSnackBar(snackBar);
        },
      );
    }
  }
}

Jawapan betul

Menurut dokumentasi untuk Access-Control-Allow-Origin respons asal hendaklah sama ada URL tunggal (iaitu peminta) atau satu aksara . *

Cuba perubahan:

AllowedOrigins:   []string{"https://*, http://*"},

kepada

AllowedOrigins:   []string{"*"},

Atas ialah kandungan terperinci log masuk web flutter mendapat pilihan tetapi tidak akan diterbitkan. Untuk maklumat lanjut, sila ikut artikel berkaitan lain di laman web China PHP!