when using "handler.reject(error);" in onError of interceptors, I cannot DioException in .catchError(), but find it in .then().

[deidei1231]

Package

dio

Version

5.5.0+1

Operating-System

Android, Web

Adapter

Default Dio

Output of flutter doctor -v

[√] Flutter (Channel stable, 3.22.2, on Microsoft Windows [版本 10.0.22631.3880], locale zh-CN)
    • Flutter version 3.22.2 on channel stable at D:\flutter
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision 761747bfc5 (7 weeks ago), 2024-06-05 22:15:13 +0200
    • Engine revision edd8546116
    • Dart version 3.4.3
    • DevTools version 2.34.3

[√] Windows Version (Installed version of Windows is version 10 or higher)

[!] Android toolchain - develop for Android devices (Android SDK version 35.0.0)
    • Android SDK at C:\Users\14732\AppData\Local\Android\sdk
    X cmdline-tools component is missing
      Run `path/to/sdkmanager --install "cmdline-tools;latest"`
      See https://developer.android.com/studio/command-line for more details.
    X Android license status unknown.
      Run `flutter doctor --android-licenses` to accept the SDK licenses.
      See https://flutter.dev/docs/get-started/install/windows#android-setup for more details.

[X] Chrome - develop for the web (Cannot find Chrome executable at .\Google\Chrome\Application\chrome.exe)
    ! Cannot find Chrome. Try setting CHROME_EXECUTABLE to a Chrome executable.

[X] Visual Studio - develop Windows apps
    X Visual Studio not installed; this is necessary to develop Windows apps.
      Download at https://visualstudio.microsoft.com/downloads/.
      Please install the "Desktop development with C++" workload, including all of its default components

[√] Android Studio (version 2024.1)
    • Android Studio at C:\Program Files\Android\Android Studio
    • Flutter plugin can be installed from:
       https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
       https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 17.0.10+0--11609105)

[√] Connected device (3 available)
    • XIAOMI(mobile)    • 192.168.1.209:8888 • android-arm64  • Android 12 (API 32)
    • Windows (desktop) • windows            • windows-x64    • Microsoft Windows [版本 10.0.22631.3880]
    • Edge (web)        • edge               • web-javascript • Microsoft Edge 126.0.2592.113

Dart Version

No response

Steps to Reproduce

// in dio_request.dart _dio.interceptors.add( InterceptorsWrapper( onRequest: (RequestOptions options, RequestInterceptorHandler handler) { return handler.next(options); }, onResponse: (Response response, ResponseInterceptorHandler handler) { print(1111); return handler.next(response); }, onError: (DioException error, ErrorInterceptorHandler handler) { print(2222); return handler.reject(error); }, ), );

// in login.dart await Request().request("/login", method: DioMethod.post, data: { "account": data['username'], "password": data['password'], }).then((res){ print(3333); print(response is DioException); // the actual result is ture }).catchError((e){ print(4444); print(e); });

Expected Result

when I write "return handler.reject(error);" in onError of interceptors, I can find the DioException in ".catchError()", When the error.response,statuscode returned by the server is 400, the print execution order: 2222 4444

Actual Result

when I write "return handler.reject(error);" in onError of interceptors, I can find the DioException in ".then()". The print execution order: 2222 1111

[AlexV525]

Please provide a minimal reproducible example.

[deidei1231]

received 

小David @.***

 

------------------ 原始邮件 ------------------ 发件人: "Alex @.>; 发送时间: 2024年10月7日(星期一) 上午10:16 收件人: @.>; 抄送: @.>; @.>; 主题: Re: [cfug/dio] when using "handler.reject(error);" in onError of interceptors, I cannot DioException in .catchError(), but find it in .then(). (Issue #2273)

Closed #2273 as not planned.

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