Angular-HTTP拦截器和配置加载到APP\u INITIALIZE上

我有一个配置模块,它的工厂在应用程序初始化时执行(APP\u INITIALIZER)

export function ConfigFactory(config: ConfigService) {
    const res = () => config.load();
    return res;
}
...
{
     provide: APP_INITIALIZER,
     useFactory: ConfigFactory,
     deps: [ConfigService],
     multi: true
}

如果我在页面/组件上打印数据,一切都正常。

问题是,当我尝试在从HttpInterceptor调用的服务中使用配置时:

    {
        provide: HTTP_INTERCEPTORS,
        useClass: TokenInterceptor,
        multi: true
    },

拦截器:

constructor(private authenticationService: AuthenticationService) {}
  intercept(request: HttpRequest<any> , next: HttpHandler): Observable<HttpEvent<any>> {

    this.authenticationService.getAccessToken().subscribe((token: string) => { this.accessToken = token.toString(); });
      this.authenticationService.getCurrentUser().subscribe((currentU: string) => { this.currentUser = currentU.toString(); });
    if (this.accessToken)  {
        request = request.clone({
        setHeaders: {
            Authorization: `Bearer ${this.accessToken}`,
            actor: this.currentUser,
    //      modulo: 'AltaActivoFijo'
        }
        });
    }
    return next.handle(request);
  }

身份验证服务:

export class AuthenticationService implements AuthService {
    API_URL = this.configService.tokenServer;
....

有没有办法把拦截器初始化推迟到APP\u初始化完成?

我的目标是为所有环境创建一个独特的构建。

我找不到一个好的、可维护的、整洁的解决方案。