无法访问维基数据 API

Question

我正在尝试使用维基数据 API，但我得到的只是：

Fetch API cannot load https://www.wikidata.org/w/api.php?action=wbsearchentities&search=Ingmar%20Bergman&language=en&limit=20&format=json&origin=http%3A%2F%2Fwww.dev.example.com%3A3000. Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://www.dev.example.com:3000' is therefore not allowed access. If an opaque response serves your needs, set the request's mode to 'no-cors' to fetch the resource with CORS disabled.

这是代码：

const headers = new Headers();

const origin = "http://www.dev.example.com:3000";
headers.append("Origin", origin);
headers.append("Content-Type", "application/json; charset=UTF-8");

const url = "https://www.wikidata.org/w/api.php";

const query = {
    action: "wbsearchentities",
    search: "Ingmar Bergman",
    language: "en",
    limit: 20,
    format: "json",
    origin
};

const myInit = new Request(url + "?" + qs.stringify(query), {
    method: "GET",
    mode: "cors-with-forced-preflight",
    headers
});

fetch(myInit)
    .then(function(res) {
        console.log(res);
    })
    .catch(function(err){
        console.log(err);
    });

我也试过JSONP，没成功。运行浏览器中的 link（只是没有 origin 参数）给出了正确的响应。

Answer 1

那么为什么要添加 "origin" 参数呢？将其关闭，或添加“&callback=some_function”以获得 JSONP。

Answer 2

将 origin=* 添加到查询字符串，例如

https://www.wikidata.org/w/api.php?action=wbsearchentities&language=es&type=item&format=json&origin=*&search=Agav

无法访问维基数据 API

Cannot access Wikidata API

javascript

cors

mediawiki-api

wikidata

wikidata-api