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lib/data/datasources/.gitkeep

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+# Data sources directory
+# Create your remote data sources here following this pattern:
+# 
+# abstract class YourRemoteDataSource {
+#   Future<YourDto> yourMethod(YourRequest request);
+# }
+# 
+# class YourRemoteDataSourceImpl implements YourRemoteDataSource {
+#   final ApiClient apiClient;
+# 
+#   YourRemoteDataSourceImpl({required this.apiClient});
+# 
+#   @override
+#   Future<YourDto> yourMethod(YourRequest request) async {
+#     try {
+#       final response = await apiClient.post(
+#         '/your-endpoint',
+#         data: request.toJson(),
+#       );
+#       // Handle response and return DTO
+#     } on DioException catch (e) {
+#       // Handle errors
+#     }
+#   }
+# }

lib/data/datasources/user_local_data_source.dart

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+import 'package:shared_preferences/shared_preferences.dart';
+
+abstract class UserLocalDataSource {
+  Future<void> cacheUserToken(String token);
+  Future<String?> getCachedUserToken();
+  Future<void> clearCache();
+}
+
+class UserLocalDataSourceImpl implements UserLocalDataSource {
+  final SharedPreferences sharedPreferences;
+  static const String _tokenKey = 'user_token';
+
+  UserLocalDataSourceImpl({required this.sharedPreferences});
+
+  @override
+  Future<void> cacheUserToken(String token) async {
+    await sharedPreferences.setString(_tokenKey, token);
+  }
+
+  @override
+  Future<String?> getCachedUserToken() async {
+    return sharedPreferences.getString(_tokenKey);
+  }
+
+  @override
+  Future<void> clearCache() async {
+    await sharedPreferences.remove(_tokenKey);
+  }
+}