大善人默认分配的域名没法用，国内基本访问不了。需要使用自己的域名托管的cf，
然后修改 CUSTOM_DOMAIN 为你自己的域名即可，部署完成之后访问出现这样的内容则为成功：
不放心也可以访问一下 axios的包看看相应内容
/**
* Welcome to Cloudflare Workers! This is your first worker.
*
* - Run `npm run dev` in your terminal to start a development server
* - Open a browser tab at http://localhost:8787/ to see your worker in action
* - Run `npm run deploy` to publish your worker
*
* Learn more at https://developers.cloudflare.com/workers/
*/
// https://registry.npmjs.org/axios/0.2.0
const CUSTOM_DOMAIN = 'https://npmproxy.wxhome.onflashdrive.app';
const NPM_JS = 'https://registry.npmjs.org';
const json = (data = {}, code = 200, headers = {}) => {
return new Response(JSON.stringify(data), {
status: code,
headers: {
'Content-Type': 'application/json',
'Access-Control-Allow-Origin': '*',
'X-Powered-By': 'X-Powered-By cloudflare npm proxy',
...headers,
},
});
};
// Export a default object containing event handlers
export default {
// The fetch handler is invoked when this worker receives a HTTP(S) request
// and should return a Response (optionally wrapped in a Promise)
async fetch(request, env, ctx) {
// You'll find it helpful to parse the request.url string into a URL object. Learn more at https://developer.mozilla.org/en-US/docs/Web/API/URL
const url = new URL(request.url);
if ('GET' !== request.method) {
return Response.redirect(`${NPM_JS}${url.pathname}`, 302);
}
// console.log('xxx: ', url);
if ('/' === url.pathname) {
return new Response(`Hello ${CUSTOM_DOMAIN}`);
}
if (url.pathname.endsWith('.tgz')) {
let response = await fetch(`${NPM_JS}${url.pathname}`);
const contentType = response.headers.get('content-type');
if (contentType && contentType.indexOf('application/json') !== -1) {
return json({ error: `NPM fetch failed: ${(await response.json()).message}` }, 500);
} else {
return response;
}
}
let data = await (await fetch(`${NPM_JS}${url.pathname}`)).json();
if (data.error) {
return json(data, 500);
}
if (data && data.dist && data.dist.tarball) {
data.dist.tarball = data.dist.tarball.replace(NPM_JS, CUSTOM_DOMAIN);
}
return json(data);
},
};