---

name: flutter-go-router-navigation description: Implement typed routes, redirection, and guards using go_router in Flutter. Use when changing go_router navigation; defer widget tests that merely assert redirect behavior and defer slide/transition animation work. metadata: triggers: files: - "/router.dart" - "/app_router.dart" keywords: - GoRouter - GoRoute - StatefulShellRoute - redirection - typed-routes

GoRouter Navigation

Priority: P0 (CRITICAL)

Structure

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 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 redirect callback of GoRouter config: redirect: (context, state) => isLoggedIn ? null : '/login'. ** NOT check auth inside page widget.**
• Tabs: Use StatefulShellRoute with branches for 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) only allowed way to navigate.

Code

See references/typed-routes.md for GoRouteData + redirect implementation.

Anti-Patterns

• No Raw String Paths: Use typed GoRouteData classes (e.g., OrderDetailRoute(id: 123).go(context)) instead of context.go('/orders/123')
• No Inline Auth Logic: Redirect logic belongs in GoRouter.redirect, not UI's build() method
• No Multiple Routers: Register one global GoRouter instance in DI
• No Unvalidated IDs: Always verify parameters exist in redirect before building route

Related Topics

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

Canonical response anchors

When this skill applies, preserve the following domain terminology or equivalent concrete examples in the answer when relevant:

• redirect callback