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Define routes and register them
A route commonly pairs a path with a component. This example defines a home page at the root URL and an admin page at /admin:
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import { Routes } from '@angular/router';
import { HomePage } from './home-page';
import { AdminPage } from './admin-page';
export const routes: Routes = [
{ path: '', component: HomePage },
{ path: 'admin', component: AdminPage },
];For a standalone application, register the configuration with provideRouter(routes) in the application providers. Route arrays are often kept in a file such as app.routes.ts, but the filename and bootstrap arrangement depend on the project. Follow the structure already in use rather than assuming all Angular applications are set up identically. See Angular’s route definition guide and routing overview.
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Static and parameterized paths
A static path names fixed segments, such as admin or settings/account. A colon-prefixed segment is a path parameter: user/:id can match URLs such as user/42, letting the same component serve different IDs. Path parameters are part of the URL path; query-string parameters are separate.
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First match wins
Angular checks routes in order and uses the first matching route. Put specific patterns before broader ones. For example, if users/new should display a creation page rather than treating new as an ID, define it before users/:id. Put broad matches after more specific ones, and put the wildcard fallback ** last.
export const routes: Routes = [
{ path: 'users/new', component: NewUserPage },
{ path: 'users/:id', component: UserPage },
{ path: '**', component: NotFoundPage },
];Redirect paths without catching unintended URLs
Use redirectTo to send a URL to another route. Angular’s default path-matching strategy is prefix, which can match a route when its path is only the beginning of the URL. For a redirect that should apply only to the root path, set pathMatch: 'full':
{ path: '', pathMatch: 'full', redirectTo: '/dashboard' }Without the full match, the empty path is a prefix of every path and can trigger redirects for URLs beyond the root. Angular explains the distinction in its redirecting routes guide; the available route options are also listed in the Route API.
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Render nested routes inside a parent view
Use a parent route’s children array when related pages share a parent view. Put a <router-outlet> in the parent component’s template; Angular displays the active child route there.
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export const routes: Routes = [
{
path: 'account',
component: AccountLayout,
children: [
{ path: 'profile', component: ProfilePage },
{ path: 'security', component: SecurityPage },
],
},
];<h1>Account</h1>
<router-outlet></router-outlet>Add a page title or guard
Route titles
A route can specify a title. When that route activates, Angular updates the document title. Give pages appropriate titles, including for accessibility and orientation when users navigate among browser tabs.
Route guards
Route definitions can use guards such as canActivate and canMatch to control client-side navigation. Angular also supports multiple routes for the same path, with guard logic helping choose a match. Guards are not a substitute for authorization: enforce access rules on trusted server-side systems as well. See Angular’s route guards guide.
Choose eager or lazy loading
Use component when the route’s component is included with the route configuration. Use loadComponent to load a component when its route becomes active, or loadChildren to load a route configuration on demand.
| Approach | What it does | Trade-off |
|---|---|---|
Eager (component) |
Includes the component with the route configuration. | Can add work to the initial bundle, but avoids fetching that component only after its route is selected. |
Lazy (loadComponent or loadChildren) |
Loads a component or route configuration when needed. | Can reduce initial loading work, but adds later network requests; deeply nested lazy routes may affect performance. |
Angular generally recommends eager loading for primary landing pages and lazy loading for other pages, but this is a guideline, not a guaranteed performance result. Measure the application’s build and runtime behavior before deciding how to organize routes. Details are in Angular’s lazy-loaded routes guidance.
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