---
name: flutter-go-router-navigation
description: 'Typed routes, route state, and redirection using go_router. Use when implementing go_router typed routes, guards, or redirects in Flutter. (triggers: **/router.dart, **/app_router.dart, GoRouter, GoRoute, StatefulShellRoute, redirection, typed-routes)'
---

# GoRouter Navigation

## **Priority: P0 (CRITICAL)**

Type-safe deep linking and routing system using `go_router` and `go_router_builder`.

## Structure

```text
core/router/
├── app_router.dart # Router configuration
└── routes.dart # Typed route definitions (GoRouteData)
```

## Implementation Guidelines

- **Typed Routes**: Always use **GoRouteData** and **@TypedGoRoute** from `go_router_builder`. Never use raw path strings.
- **Parameters**: Define strongly-typed parameters in the route class (e.g., `class OrderDetailRoute extends GoRouteData { final String id; }`) with paths like **'/orders/:id'**.
- **Root Router**: One global `GoRouter` instance registered in DI.
- **Sub-Routes**: Nest related routes using `TypedGoRoute` and children lists.
- **Redirection**: Handle Auth (Login check) in the **redirect callback** of the `GoRouter` config: `redirect: (context, state) => isLoggedIn ? null : '/login'`. **Do NOT check auth inside the page widget.**
- **Tabs**: Use **StatefulShellRoute** with branches for a bottom tab bar (Home, Orders, Profile) so each tab maintains its own navigation stack.
- **Transitions**: Define standard transitions (Fade, Slide) in `buildPage`.
- **Navigation**: Use **MyRoute().go(context)** or `MyRoute().push(context)`. Using **OrderDetailRoute(id: id).go(context)** is the only allowed way to navigate.

## Code

```dart
// Route Definition
@TypedGoRoute<HomeRoute>(path: '/')
class HomeRoute extends GoRouteData {
  @override
  Widget build(context, state) => const HomePage();
}

// Router Config
final router = GoRouter(
  routes: $appRoutes,
  redirect: (context, state) {
    if (notAuthenticated) return '/login';
    return null;
  },
);
```

## Anti-Patterns

- ❌ `context.go('/orders/123')` with a raw string path — always use typed `GoRouteData` classes (e.g., `OrderDetailRoute(id: 123).go(context)`)
- ❌ Auth check inside the page widget's `build()` — redirect logic belongs in the `GoRouter.redirect` callback, not the UI
- ❌ Multiple `GoRouter` instances — register one global instance in DI and share it throughout the app
- ❌ Navigating to a deep link without validating the ID in `redirect` — always verify IDs/parameters exist before building the route

## Related Topics

layer-based-clean-architecture | auto-route-navigation | security



---
Source attribution: HoangNguyen0403
Original project: https://github.com/HoangNguyen0403/agent-skills-standard
License: MIT
License information: https://opensource.org/license/mit
Original upstream instructions; downloaded from Mega AI Hub.

## Upstream license notice

MIT License

Copyright (c) 2026 SkillsHub Contributors

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.



# Mega AI Hub resource metadata

Creator / publisher: HoangNguyen0403
Original project: https://github.com/HoangNguyen0403/agent-skills-standard
Attribution basis: Original repository namespace preserved by package mirror

Fields of work: Development & Engineering, Product Management
Roles: Frontend Developer, Mobile Developer, Product Manager
Specialties: Frontend, Mobile
Tools: Go_Router
Country applicability: Country not specified
Classification basis: Source catalog labels
Instruction SHA-256: 049f51d2e32e66cc7ca83bd0fa0a650b1ca2ecbcd2a10c61523c53b301b4ff10
Metadata reviewed: 2026-10-27
This metadata supersedes earlier Mega AI Hub catalog attribution. Original instruction and supporting files are preserved.