deepvoice_client/lib/data/services/network/auth_interceptor.dart

import 'package:dio/dio.dart';
import 'package:flutter_easyloading/flutter_easyloading.dart';
import 'package:get/get.dart' hide Response;

import 'package:get_storage/get_storage.dart';
import 'entity/base_entity.dart';

class AuthInterceptor extends Interceptor {
  final GetStorage _storage = GetStorage();

  @override
  void onRequest(RequestOptions options, RequestInterceptorHandler handler) {
    var jsonString = _storage.read<String>("logintoken");
    options.headers['Authorization'] = jsonString;
    handler.next(options);
  }

  @override
  void onResponse(Response response, ResponseInterceptorHandler handler) async {
    BaseEntity entity = BaseEntity.fromJson(response.data);
    if (entity.code == 0) {
      response.data = entity.data ?? {};
      handler.resolve(response);
    } else {
      response.data = null;
      handler.next(response);
      return EasyLoading.showError(entity.message ?? 'unknownError'.tr);
    }
  }

  @override
  void onError(DioException err, ErrorInterceptorHandler handler) {
    switch (err.type) {
      case DioExceptionType.cancel:
        {
          EasyLoading.showError('requestCancellation'.tr);
        }
      case DioExceptionType.connectionTimeout:
        {
          EasyLoading.showError('connectionTimeout'.tr);
        }
      case DioExceptionType.sendTimeout:
        {
          EasyLoading.showError('requestTimeout'.tr);
        }
      case DioExceptionType.receiveTimeout:
        {
          EasyLoading.showError('responseTimeout'.tr);
        }
      case DioExceptionType.badResponse:
        {
          try {
            String? errMsg = err.response?.statusMessage;
            EasyLoading.showError(errMsg ?? 'unknownError'.tr);
          } on Exception catch (_) {
            EasyLoading.showError('unknownError'.tr);
          }
        }
      default:
        {
          EasyLoading.showError(err.message ?? 'unknownError'.tr);
        }
    }
    handler.next(err);
  }
}