Interceptor Angular 4.3 - Set multiple headers on the cloned request

Question

I just noticed that the Header Object that was possible to use in the previous HTTP RequestsOption is not anymore supported in the new Interceptor.

It\'s the new Int

Answer 1

Angular 4.3+

Set multi headers in Interceptor:

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

import {environment} from '../../../../environments/environment';

export class SetHeaderInterceptor implements HttpInterceptor {
  intercept(req: HttpRequest, next: HttpHandler): Observable> {

    const headers = new HttpHeaders({
      'Authorization': 'token 123',
      'WEB-API-key': environment.webApiKey,
      'Content-Type': 'application/json'
    });


    const cloneReq = req.clone({headers});

    return next.handle(cloneReq);
  }
}