64 lines
1.8 KiB
Dart
64 lines
1.8 KiB
Dart
import 'package:dio/dio.dart';
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import '../../data/repositories/auth_repository.dart';
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class AuthInterceptor extends Interceptor {
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final AuthRepository _authRepository;
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final Dio _dio;
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AuthInterceptor(this._authRepository, this._dio);
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@override
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Future<void> onRequest(
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RequestOptions options,
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RequestInterceptorHandler handler,
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) async {
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// Skip auth header for login and refresh endpoints
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if (options.path.contains('/login') ||
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options.path.contains('/auth/refresh')) {
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return handler.next(options);
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}
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// Get token and add to request
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final token = await _authRepository.getAccessToken();
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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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@override
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Future<void> onError(
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DioException err,
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ErrorInterceptorHandler handler,
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) async {
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// Handle 401 errors by refreshing token and retrying
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final response = err.response;
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if (response?.statusCode == 401) {
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final data = response?.data;
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// Only refresh token if error is NOT INCORRECT_TPIN (or similar business error)
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if (data is Map && data['error'] == 'INCORRECT_TPIN') {
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// Pass the error through, do not retry
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return handler.next(err);
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}
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// On 401, try to get a new token
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final token = await _authRepository.getAccessToken();
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if (token != null) {
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// If we have a new token, retry the request
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final opts = err.requestOptions;
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opts.headers['Authorization'] = 'Bearer $token';
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try {
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final response = await _dio.fetch(opts);
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return handler.resolve(response);
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} on DioException catch (e) {
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return handler.next(e);
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}
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}
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}
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return handler.next(err);
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}
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}
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