Core Concepts

This page outlines the core building blocks you will use when protecting navigation with go_router_guards.

RouteGuard

Guards encapsulate logic that decides whether navigation should continue, be redirected, or be blocked.

• Implement a guard by extending RouteGuard and overriding onNavigation.
• Use resolver.next(), resolver.redirect('/path'), or resolver.block().

NavigationResolver

The NavigationResolver mediates control flow between guards and the router, enabling middleware‑style composition.

Guard composition

Compose multiple guards into one with helpers:

• guardAll([...]) — all must pass
• guardAnyOf([...], { fallbackRedirect }) — at least one must pass
• guardOneOf([...], { fallbackRedirect }) — exactly one must pass

Route mixins

For type‑safe routes, mix in GuardedRoute or GuardedShellRoute and provide a guard.

ConditionalGuard

Target or exclude specific paths with ConditionalGuard while keeping logic in a single guard.

---

See the API Reference for full types, and follow the Get Started guide to try these concepts in code.