http - DioError [DioErrorType.RESPONSE] : Http status error [405] [Solved]

Question

我正在使用 Dio 创建一个 post 请求，
这是我的 FormData 参数，

    FormData formData = FormData.fromMap({
      'wallet_id': '${dropdownValue.walletId}',
      'member_id': '${_loginModel.memberId}',
      'draw_amount': withdrawalAmountContoller.text,
      'login_password': passwordController.text,
    });

然后我像这样传递 params，

Response response = await dio.post(url, data: params);

但我收到请求时出错，

ERROR[DioError [DioErrorType.RESPONSE]: Http status error [405]] => PATH: https://vertoindiapay.com/pay/api/withdraw

E/flutter ( 6703): [ERROR:flutter/lib/ui/ui_dart_state.cc(157)] Unhandled Exception: DioError [DioErrorType.RESPONSE]: Http status error [405]

E/flutter ( 6703): #0 DioMixin._request._errorInterceptorWrapper. (package:dio/src/dio.dart:848:13)

请帮我解决这个问题。 我的网址是=> https://vertoindiapay.com/pay/api/withdraw

虽然这在 postman 中工作正常，

Answer 1

  Future<void> signUpUser() async {
    final formData = {
      'username': 'test1',
      'password': 'abcdefg',
      'grant_type': 'password',
    };
 try {
    Dio _dio = new Dio();
    _dio.options.contentType = Headers.formUrlEncodedContentType;

    final responseData = await _dio.post<Map<String, dynamic>>('/token',
        options: RequestOptions(
           
            method: 'POST',
            headers: <String, dynamic>{},
            baseUrl: 'http://52.66.71.229/'),
        data: formData);

   
      print(responseData.toString());
    } catch (e) {
      final errorMessage = DioExceptions.fromDioError(e).toString();
      print(errorMessage);
    }

  }



 class DioExceptions implements Exception {
  
  DioExceptions.fromDioError(DioError dioError) {
    switch (dioError.type) {
      case DioErrorType.CANCEL:
        message = "Request to API server was cancelled";
        break;
      case DioErrorType.CONNECT_TIMEOUT:
        message = "Connection timeout with API server";
        break;
      case DioErrorType.DEFAULT:
        message = "Connection to API server failed due to internet connection";
        break;
      case DioErrorType.RECEIVE_TIMEOUT:
        message = "Receive timeout in connection with API server";
        break;
      case DioErrorType.RESPONSE:
        message =
            _handleError(dioError.response.statusCode, dioError.response.data);
        break;
      case DioErrorType.SEND_TIMEOUT:
        message = "Send timeout in connection with API server";
        break;
      default:
        message = "Something went wrong";
        break;
    }
  }

  String message;

  String _handleError(int statusCode, dynamic error) {
    switch (statusCode) {
      case 400:
        return 'Bad request';
      case 404:
        return error["message"];
      case 500:
        return 'Internal server error';
      default:
        return 'Oops something went wrong';
    }
  }

  @override
  String toString() => message;
}