mobile-app/lib/data/api/app_exception.dart

import 'dart:convert';

import 'package:dio/dio.dart';
import 'package:farm_tpf/utils/const_string.dart';

class AppException {
  static String handleError(dynamic error, {String customMessageError}) {
    String errorDescription = "";

    try {
      DioError dioError = error as DioError;
      switch (dioError.type) {
        case DioErrorType.CANCEL:
          errorDescription = exception_dio_cancle;
          break;
        case DioErrorType.CONNECT_TIMEOUT:
          errorDescription = exception_dio_connect_timeout;
          break;
        case DioErrorType.DEFAULT:
          errorDescription = exception_dio_default;
          break;
        case DioErrorType.RECEIVE_TIMEOUT:
          errorDescription = exception_dio_receive_timeout;
          break;
        case DioErrorType.RESPONSE:
          int statusCode = dioError.response.statusCode;
          if (statusCode == 400) {
            errorDescription = customMessageError ?? exception_dio_400;
          } else if (statusCode == 401) {
            errorDescription = exception_dio_401;
          } else if (statusCode == 403) {
            errorDescription = exception_dio_403;
          } else if (statusCode == 404) {
            errorDescription = exception_dio_404;
          } else if (statusCode == 500) {
            errorDescription = exception_dio_500;
          } else {
            errorDescription = exception_common;
          }
          break;
        case DioErrorType.SEND_TIMEOUT:
          errorDescription = exception_dio_send_timeout;
          break;
      }
    } catch (_) {
      errorDescription = exception_common;
    }
    return errorDescription;
  }
}