163253866d
automatically checks if isAuthenticated(): - if !isAuthenticated() (token expired), route to login and delete token from sessionStorage;
41 lines
1.4 KiB
TypeScript
41 lines
1.4 KiB
TypeScript
import {HttpEvent, HttpHandler, HttpInterceptor, HttpRequest} from '@angular/common/http';
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import {Injectable} from '@angular/core';
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import {Observable} from 'rxjs';
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import {NGXLogger} from 'ngx-logger';
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import {AuthService} from './auth.service';
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import {Router} from '@angular/router';
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@Injectable({
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providedIn: 'root'
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})
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/**
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* The InterceptorService intercepts EVERY http event.
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*/
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export class InterceptorService implements HttpInterceptor {
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constructor(private logger: NGXLogger,
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private authService: AuthService,
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private router: Router
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) {
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}
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/**
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* Intercepts every HTTP request.
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* If the token is invalid (expired) the user is redirected to logout (always).
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* @param req http request
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* @param next http response handler
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*/
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intercept(req: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
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// FOR TESTING ONLY - sets an expired token
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// sessionStorage.setItem('loginToken', 'eyJhbGciOiJIUzI1NiJ9.eyJleHAiOjE2MTk4ODYzNTF9.e83okQ1NHjeO-AxaB3SQP9P5UjOYy-e5DFissDdf2Mo');
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const authenticated = this.authService.isAuthenticated();
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this.logger.debug('isAuthenticated?', authenticated);
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if (!this.authService.isAuthenticated()) {
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this.logger.debug('token invalid, route to login');
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this.router.navigate(['login']).then(() => {});
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}
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return next.handle(req);
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}
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}
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