Polymer Iron Ajax - 如何在错误事件后访问请求的响应？ [英] Polymer Iron Ajax - How to access Response from Request after Error Event?

问题描述

我使用iron-ajax：

I use iron-ajax:

<iron-ajax
   id="postLoginForm"
   method="POST"
   verbose
   url="../../login"
   content-type="application/json"
   handle-as="json"
   on-response="_handleLoginResponse"
   on-error="_handleErrorResponse"></iron-ajax>

如果请求正文为空，服务器总是会响应错误：

The server always responds with an error if the request body is empty:

错误：请求失败，状态码为：422

Error: The request failed with status code: 422

此触发器我的 _handleErrorResponse 方法，我想访问实际的响应，如下所示：

This triggers my _handleErrorResponse method in which I would like to access the actual response, which looks like this:

{email：[电子邮件字段是必需的。]，密码：[密码字段是必需的。]}

{"email":["The email field is required."],"password":["The password field is required."]}

以下是我的 _handleErrorResponse 的样子：

_handleErrorResponse: function (event) {
  console.log(event);
  console.log(event.detail);
  console.log(event.detail.error);
  console.log(event.detail.error.message);
  console.log(event.detail.request);
  console.log(event.detail.response);
  console.log(event.detail.request.response);
},

以下是输出结果：

那么，如何访问响应以便我可以将其输出到查看？

So, how do I access the response so that I can output it to the view?

推荐答案

我认为你可以在这里得到错误JSON：

I think you can get the error JSON here:

event.detail.request.xhr.response

To得到更完整的解释，你可以在这里阅读一个不同但相关的问题的接受答案：

To get a more complete explanation, you can read the accepted answer to a different, but related question here:

Iron Ajax - 如何从响应函数访问响应？

干杯！

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