Angular 未触发HTTP拦截器

我的拦截器没有启动.我不知道我做错了什么.我试过了所有能找到的解决办法.

拦截器只是没有拦截http请求.所以没有添加"Authorization"标头.

token.interseptor.ts(try OnInit查看是否触发了控制台日志(log))

import { Injectable, OnInit } from '@angular/core';
import {
  HttpRequest,
  HttpHandler,
  HttpEvent,
  HttpInterceptor
} from '@angular/common/http';
import { Observable } from 'rxjs';
import { AuthService } from '../services/auth.service';

@Injectable({
  providedIn: 'root'
})

export class TokenInterceptor implements HttpInterceptor, OnInit {

  constructor(private AuthService: AuthService) {
  }
  ngOnInit(): void {
    console.log('Working? ');

  }

  intercept(request: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
    console.log('request- ', request);
    const tokenizedReq = request.clone({
      setHeaders: { Authorization: `Bearer ${this.AuthService.getToken()}` }
    });

    return next.handle(tokenizedReq);
  }

app.module.ts:

import { HttpClientModule, HTTP_INTERCEPTORS } from '@angular/common/http';
import { TokenInterceptor } from './utility/token.interceptor';

 providers: [ 
    { provide: HTTP_INTERCEPTORS, useClass: TokenInterceptor, multi: true }
  ],

如下所示发送HTTP API调用:

  const userPackage = {
    method: 'POST',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify(user)
  }

  const respose = await fetch('http://localhost:3000/api/user/login', userPackage)
  const loggedIn = await respose.json();