拦截Angular2中的错误-捕获问题

Question

I was following this answer by Thierry Templier , but run into some troubles when defining error interceptors ( other interceptors are working ).

I have the following:

get(url: string, options?: RequestOptionsArgs): Observable<Response> {
  console.log('get...');
  return super.get(url, options).catch(res => {
    this.router.navigate(['Login']);
    return Observable.of(res)
  });
}

Which throws :

vendor.min.js:38333 ORIGINAL EXCEPTION: TypeError: _super.prototype.get.call(...).catch is not a function

Any ideas?

Answer 1

我认为您可能忘记了在定义拦截器类的模块中导入catch操作符：

import 'rxjs/add/operator/catch';