如何超时angular2 http请求 [英] How to timeout angular2 http request

问题描述

以下是常规请求：

 this.people = http.get('http://localhost:3000/users')
      .map(response => response.json());
  }

有没有办法实现/超时？

Is there any way to dealy/timeout that?

推荐答案

您可以利用observables的 timeout 运算符，如下所述：

You can leverage the timeout operator of observables, as described below:

return this.http.get('http://api.geonames.org/postalCodeSearchJSON',
          { search: params })
    .retryWhen(error => error.delay(500))
    .timeout(2000, new Error('delay exceeded')) // <------
    .map(res => res.json().postalCodes);

有关详细信息，请参阅此文章（重试支持部分）：

See this article for more details (with the section "Retry support"):

• http://restlet.com/blog/2016/04/18/interacting-efficiently-with-a-restful-service-with-angular2 -and-rxjs-part-3 /

• http://restlet.com/blog/2016/04/18/interacting-efficiently-with-a-restful-service-with-angular2-and-rxjs-part-3/

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