Stackwarden for Flutter #

Official Flutter SDK for Stackwarden — self-hostable error monitoring and Explore signals (traces, logs, metrics).

Requires Dart 3.3+ and Flutter 3.16+.

Features:

• Error tracking (Flutter / zone / platform; optional native crash + ANR hooks)
• Performance: app start, navigation (ui.load), HTTP child spans, optional profiling
• Device / OS / app contexts and tags (via device_info_plus + battery_plus)
• Explore logs & metrics (opt-in)
• Breadcrumbs (HTTP, navigation, user interaction — via integrations)
• Offline queue with retry
• Attachments, user feedback, release-health helpers, source context
• Optional debug-symbol upload tool (packages/stackwarden_dart_plugin)

Install #

dependencies:
  stackwarden: ^1.0.0

flutter pub add stackwarden

Wire unhandled Flutter errors in main():

import 'package:stackwarden/stackwarden.dart';

Future<void> main() async {
  await Integration.runApp(
    () async {
      // Do plugin / binding init here — not before Integration.runApp.
      return const MyApp();
    },
    options: Options.fromMap({
      'dsn': const String.fromEnvironment(
        'STACKWARDEN_DSN',
        defaultValue: 'http://sw_YOUR_PROJECT_KEY@127.0.0.1:8001',
      ),
      'environment': 'development',
      // Prefer id@version+build — see doc/device-context.md
      // 'release': 'com.example.app@1.0.0+1',
      'traces_sample_rate': 1.0,
      'enable_logs': true,
      'enable_metrics': true,
    }),
  );
}

Use Integration.navigatorObservers() on MaterialApp, and Integration.wrapHttpClient for HTTP spans under the active screen transaction.

Docs #

See CONTRIBUTING.md for development.

License #

MIT — see LICENSE.