token.interceptor.ts

token.interceptor.ts

import { Injectable } from '@angular/core';
import {
  HttpRequest,
  HttpHandler,
  HttpEvent,
  HttpInterceptor
} from '@angular/common/http';
import { AuthService } from './auth/auth.service';
import { Observable } from 'rxjs';
// You can add URL which don't need AUTH header
const whiteListUrls = ['login', 'refreshToken']

@Injectable()
export class AuthInterceptor implements HttpInterceptor {
  constructor(public auth: AuthService) {}
  intercept(request: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
    if (whiteListUrls.find(w => request.url.includes(w))) {
       return next.handle(request);
    }
    const token = window.localStorage.get('token');
    request = request.clone({
      setHeaders: {
        Authorization: `Bearer ${token}`
      }
    });
    return next.handle(request);
  }
}