Cloudflare Worker to access private repo assets

index.js

import welcome from "welcome.html";

/**
 * @typedef {Object} Env
 */

export default {
	/**
	 * @param {Request} request
	 * @param {Env} env
	 * @param {ExecutionContext} ctx
	 * @returns {Promise<Response>}
	 */
	async fetch(request, env, ctx) {
		let url = new URL(request.url)
		let token = url.searchParams.get("token")
		if (token == null || token == '') {
			return new Response("missing token");
		}
		const releaseApi = "https://api.github.com/repos/BruceZhang1993/MihomoConfigGenerator/releases/tags/pre-release"
		let response = await fetch(releaseApi, { headers: { 'Authorization': 'token ' + token, "User-Agent": "Cloudflare" } })
		const { _, result } = await gatherResponse(response);
		if (result.assets == null || result.assets.length == 0) {
			return new Response("missing assets");
		}
		let assetId = result.assets[0].id
		let assetApi = "https://api.github.com/repos/BruceZhang1993/MihomoConfigGenerator/releases/assets/" + assetId
		let assetResp = await fetch(assetApi, { headers: { 'Authorization': 'token ' + token, "User-Agent": "Cloudflare", "Accept": "application/octet-stream" } })
		return new Response(await assetResp.text(), { 'headers': { 'Content-Type': 'text/yaml' } });
	},
};

async function gatherResponse(response) {
	const { headers } = response;
	const contentType = headers.get("content-type") || "";
	if (contentType.includes("application/json")) {
		return { contentType, result: await response.json() };
	}
	return { contentType, result: await response.text() };
}