dart-flutter-patterns
Production-ready Dart and Flutter patterns covering null safety, immutable state with Freezed, async composition, widget architecture, state management (BLoC, Riverpod, Provider), GoRouter navigation with auth guards, Dio networking, error handling, and testing.
- Kind
- Skill
- Works with
- Claude Code, Codex
- Source
- affaan-m/ECC @ d3b8a3e90890
- Path
- skills/dart-flutter-patterns/SKILL.md
- License
- MIT
- Jobs
- Debugging, Testing, Review
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# Dart/Flutter Patterns ## When to Use Use this skill when: - Starting a new Flutter feature and need idiomatic patterns for state management, navigation, or data access - Reviewing or writing Dart code and need guidance on null safety, sealed types, or async composition - Setting up a new Flutter project and choosing between BLoC, Riverpod, or Provider - Implementing secure HTTP clients, WebView integration, or local storage - Writing tests for Flutter widgets, Cubits, or Riverpod providers - Wiring up GoRouter with authentication guards ## How It Works This skill provides copy-paste-ready Dart/Flutter code patterns organized by concern: 1. **Null safety** — avoid `!`, prefer `?.`/`??`/pattern matching 2. **Immutable state** — sealed classes, `freezed`, `copyWith` 3. **Async composition** — concurrent `Future.wait`, safe `BuildContext` after `await` 4. **Widget architecture** — extract to classes (not methods), `const` propagation, scoped rebuilds 5. **State management** — BLoC/Cubit events, Riverpod notifiers and derived providers 6. **Navigation** — GoRouter with reactive auth guards via `refreshListenable` …