What it does
Interface that a class can implement to be a guard deciding if a children can be
loaded.
How to use
class UserToken {}
class Permissions {
canLoadChildren(user: UserToken, id: string): boolean {
return true;
}
}
@Injectable()
class CanLoadTeamSection implements CanLoad {
constructor(private permissions: Permissions, private currentUser: UserToken) {}
canLoad(route: Route(
route: Route
): Observable<boolean>|Promise<boolean>|boolean {
return this.permissions.canLoadChildren(this.currentUser, route);
}
}
@NgModule({
imports: [
RouterModule.forRoot([
{
path: 'team/:id',
component: TeamCmp,
loadChildren: 'team.js',
canLoad: [CanLoadTeamSection]
}
])
],
providers: [CanLoadTeamSection, UserToken, Permissions]
})
class AppModule {}
You can alternatively provide a function with the canLoad signature:
@NgModule({
imports: [
RouterModule.forRoot([
{
path: 'team/:id',
component: TeamCmp,
loadChildren: 'team.js',
canLoad: ['canLoadTeamSection']
}
])
],
providers: [
{
provide: 'canLoadTeamSection',
useValue: (route: Route) => true
}
]
})
class AppModule {}
Interface Overview
interface CanLoad {canLoad(route: Route) : Observable<boolean>|Promise<boolean>|boolean
}
Interface Details
canLoad(route: Route) : Observable<boolean>|Promise<boolean>|boolean
exported from @angular/router/index,
defined in @angular/router/src/interfaces.ts