Route guard
A route guard is logic that permits, redirects, or blocks navigation or route activation based on application conditions.
Pro Angular 16
A route guard is an Angular service or class that controls whether navigation to a route or loading of a route module may proceed.
- How it is used
- Controls navigation when routes require application state, authentication, user consent, or protection against abandoned edits.
- How deep it goes
- Works through guard registration, route configuration, synchronous and asynchronous results, child routes, deactivation, and dynamic loading.
- Examples
- Uses direct cart URL reloads, protected administration, terms confirmation, unsaved product edits, and first-time dynamic-module loading.
- What you can do after
- Build it from scratch by registering guard services, attaching them to routes, and returning decisions or awaiting user responses.
Modern Angular
An Angular routing guard is a router hook that controls whether navigation or route activation may proceed.
- How it is used
- Restricts enterprise route access according to authentication status and other user categories.
- How deep it goes
- Explains class-based and functional implementations, dependency injection, observable decisions, redirects, and route registration.
- Examples
- Uses an HRMS AuthGuard that redirects unauthenticated users to /login and protects a lazy-loaded employees route.
- What you can do after
- Build it from scratch as a class-based or functional authentication guard and attach it to an Angular route.
Related concepts
- server-side renderingcontrasts with · A web-rendering technique in which a server generates a user interface’s markup or other rendered representation before delivering it to a client.
- routingused by · Routing is the selection of a path, destination, or processing component to direct an item, request, or flow toward an intended endpoint.
- servicekind of · A service is a software or computing capability that provides defined functionality to users or other components through an interaction boundary.
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