angular - interceptor

import { Injectable } from "@angular/core";
import { HttpInterceptor, HttpRequest, HttpEvent, HttpHandler, HttpHeaders } from '@angular/common/http';
import { Observable } from 'rxjs';

@Injectable()
export class AuthInterceptor implements HttpInterceptor {

    intercept(request: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
        var token = "token";

        const headers = new HttpHeaders().set('Authorization', `Bearer ${token}`);
        const newRequest = request.clone({ headers: headers })

        return next.handle(newRequest);
    }
}