Wikipedia API的CORS错误 [英] CORS Error on Wikipedia API

问题描述

我对如何处理Wikipedia api调用感到有些困惑。我一直遇到这个错误：

I am a little confused about how to handle a wikipedia api call in react. I keep running into this error:

跨域请求被阻止：同源策略禁止读取远程资源（...）

Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource(...)

现在，我正在提交表单时执行操作，该表单接受表单输入值并将其插入Wikipedia api URL 。我已经尝试过使用JSONP，但是我真的不希望使用它，因为我听说它是​​超级hacky。

Right now, I am running an action upon submitting a form, the form takes the form input value and inserts that into the Wikipedia api URL. I have tried using JSONP, but I really would prefer not to use that since I have heard it is super hacky.

actions / index.js

actions/index.js

import axios from 'axios';

const WIKI_URL = "https://en.wikipedia.org/w/api.php?action=query&format=jsonp&list=search&titles=";
const FETCH_ARTICLES = 'FETCH_ARTICLES';

export function fetchArticles(term) {
  const url = `${WIKI_URL}${term}`;
  const request = axios.get(url);

  return {
    type: FETCH_ARTICLES,
    payload: request
  }

如果有必要，我当然可以添加更多代码，但是据我所知，这就是问题所在。

I can definitely add more code if necessary, but from what I can tell, this is where the problem lies.

编辑：如果我必须使用JSONP，但仍然无法使用。我相信axios不支持JSONP，会有更好的库吗？为什么某些API会有跨源引用错误，而另一些API没有？

edit: If I had to use JSONP, I still have not been able to. I believe that axios does not support JSONP, would there be a better library to use? Why do some APIs have a Cross Origin Reference Error while others do not?

推荐答案

Drop format = jsonp 并在WIKI_URL值中的查询参数中添加 origin = * ：

Drop format=jsonp and add origin=* to the query params in the WIKI_URL value:

const WIKI_URL = "https://en.wikipedia.org/w/api.php?origin=*&action=query…";

请参见 Wikipedia后端的CORS相关文档：

对于匿名请求，可以将原始查询字符串参数设置为 * ，这将允许来自任何地方的请求。

For anonymous requests, origin query string parameter can be set to * which will allow requests from anywhere.

就 format 参数而言，JSON输出是默认设置，因此我认为您不需要指定。

As far as the format param, JSON output is the default, so I think you don’t need to specify that.

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