85 lines
2.7 KiB
Dart
85 lines
2.7 KiB
Dart
import 'package:dio/dio.dart';
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import 'package:shared_preferences/shared_preferences.dart';
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import '../../config/app_config.dart';
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class ApiClient {
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late final Dio _dio;
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ApiClient() {
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_dio = Dio(
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BaseOptions(
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baseUrl: AppConfig.apiBaseUrl,
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connectTimeout: const Duration(seconds: 10),
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receiveTimeout: const Duration(minutes: 2),
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headers: {
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'Content-Type': 'application/json',
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'Accept': 'application/json',
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},
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),
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);
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_setupInterceptors();
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}
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void _setupInterceptors() {
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// Request interceptor to append JWT token
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_dio.interceptors.add(InterceptorsWrapper(
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onRequest: (options, handler) async {
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final prefs = await SharedPreferences.getInstance();
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final token = prefs.getString('auth_token');
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if (token != null) {
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options.headers['Authorization'] = 'Bearer $token';
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}
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return handler.next(options);
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},
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));
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// Logging interceptor for debugging
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_dio.interceptors.add(LogInterceptor(
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requestBody: true,
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responseBody: true,
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));
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// Standardized Error Interceptor
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_dio.interceptors.add(InterceptorsWrapper(
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onError: (DioException e, handler) {
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String errorMessage = 'An unexpected error occurred';
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if (e.type == DioExceptionType.connectionTimeout ||
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e.type == DioExceptionType.receiveTimeout) {
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errorMessage = 'Connection timed out. Please try again.';
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} else if (e.response != null) {
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// Standardized HTTP error formatting
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final statusCode = e.response?.statusCode;
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String serverMsg = 'Unknown';
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final responseData = e.response?.data;
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if (responseData is Map) {
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serverMsg = responseData['message'] ?? 'Unknown';
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} else if (responseData is String) {
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// Truncate raw string if it's a long HTML page
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serverMsg = responseData.length > 100
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? '${responseData.substring(0, 100)}...'
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: responseData;
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}
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errorMessage = 'Server error ($statusCode): $serverMsg';
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} else if (e.type == DioExceptionType.connectionError) {
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errorMessage = 'No internet connection.';
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}
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final customError = DioException(
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requestOptions: e.requestOptions,
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response: e.response,
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type: e.type,
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error: errorMessage,
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);
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return handler.next(customError);
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},
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));
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// Dummy Response Interceptor for Development
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// TODO: Remove this interceptor before production release
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// _dio.interceptors.add(DummyResponseInterceptor());
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}
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Dio get client => _dio;
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}
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