Sentry Flutter Integration Guide (sentry_flutter)

Goal

Implement a robust observability and performance monitoring layer using Sentry's official Flutter SDK. This skill ensures comprehensive error tracking across the UI and Network layers, alongside performance tracking (Tracing) for application navigation and HTTP requests, without exhausting Sentry data quotas or exposing PII.

Instructions

1. Core Initialization (sentry_flutter)

You must initialize Sentry as early as possible in your application's lifecycle, wrapping runApp with SentryWidget to capture AssetBundle transaction times and basic UI interactions natively.

import 'package:flutter/widgets.dart';
import 'package:sentry_flutter/sentry_flutter.dart';

Future<void> main() async {
  WidgetsFlutterBinding.ensureInitialized();