Estoy tratando de inyectar servicios en mis aplicaciones angulares 2, sin embargo, el servicio no está definido cuando llamo a canactivate() en angular/router. ¿Cómo puedo inyectar un servicio antes de que se llame a canactivate()? ingrese la descripción de la imagen aquí
app.routing.ts
const appRoutes: Routes = [ { path: '', component: HomeComponent, canActivate: ['AuthGuardService'] }, { path: 'login', component: LoginComponent, outlet: 'popup' }, // otherwise redirect to home {path: '**', redirectTo: ''} ]; export const appRoutingProviders: any[] = [ {provide: "AuthGuardService", useValue: AuthGuardService} ]; export const routing: ModuleWithProviders = RouterModule.forRoot(appRoutes);auth.guard.service.ts
import {Injectable, Inject} from '@angular/core'; import {AuthService} from "./auth.service"; import {Router, CanActivate} from "@angular/router"; import {Observable} from "rxjs"; @Injectable() export class AuthGuardService implements CanActivate { constructor(@Inject(AuthService) private auth, @Inject(Router) private router) { } canActivate() : Observable<boolean> | boolean{ if(this.auth.loggedIn()) { return true; } this.router.navigate([{outlets: {popup: 'login'}}]); return false; } }aplicación.módulo.ts
@NgModule({ declarations: [], imports: [ routing ] providers: [ appRoutingProviders, ...AUTH_PROVIDERS, AuthService, AuthGuardService, HttpService, { provide: AuthHttp, useFactory: AuthHttpServiceFactory, deps: [Http, RequestOptions] }, IndicesEffectsService, DialogServiceService ], bootstrap: [AppComponent] }) export class AppModule { }necesitará exponer sus rutas como un module intente esto:
const appRoutes: Routes = [ { path: '', component: HomeComponent, canActivate: [AuthGuardService] // <- no quotes }, { path: 'login', component: LoginComponent, outlet: 'popup' }, // otherwise redirect to home {path: '**', redirectTo: ''} ]; @NgModule ({ imports: [ RouterModule.forRoot(appRoutes)], exports: [ RouterModule], providers: [ AuthGuardService ] // <- provide guard }) export class AppRoutingModule {} luego en tu AppModule
@NgModule({ declarations: [], imports: [ AppRoutingModule ] // <- import module here providers: [ appRoutingProviders, ...AUTH_PROVIDERS, AuthService, // AuthGuardService, // <- no need for this HttpService, { provide: AuthHttp, useFactory: AuthHttpServiceFactory, deps: [Http, RequestOptions] }, IndicesEffectsService, DialogServiceService ], bootstrap: [AppComponent] }) export class AppModule { }