Genshin Impact Daily Check-In Cloudflare Worker script

cf_genshin_checkin_worker.js

/// Cloudflare Worker script for Genshin Impact Daily Check-In
/// LTUID, LTOKEN must be set for check-in
/// TELEGRAM_CHAT_ID, TELEGRAM_BOT_TOKEN may be set for messaging

const CHECK_IN_URL = "https://hk4e-api-os.mihoyo.com/event/sol/sign?act_id=e202102251931481";

async function handleScheduled(request) {
    const headers = new Headers();
    headers.set("Cookie", `ltuid=${LTUID}; ltoken=${LTOKEN};`);
    headers.set(
        "User-Agent",
        "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:106.0) Gecko/20100101 Firefox/100.0"
    );

    const checkInResponse = await fetch(CHECK_IN_URL, {
        method: "POST",
        headers: headers,
    });
    const checkInResult = await checkInResponse.json();

    const message = `(${checkInResult.retcode}) ${checkInResult.message}`;
    if (checkInResult.retcode != -5003 && checkInResult.retcode != 200 && checkInResult.retcode != 0) {
        try {
            const TELEGRAM_MESSAGE_URL = `https://api.telegram.org/bot${TELEGRAM_BOT_TOKEN}/sendMessage`;
            const messageTelegramResponse = await fetch(TELEGRAM_MESSAGE_URL, {
                method: "POST",
                body: JSON.stringify({
                    chat_id: TELEGRAM_CHAT_ID,
                    text: message,
                }),
                headers: {
                    "Content-Type": "application/json",
                },
            });
            if (!messageTelegramResponse.ok) {
                console.error("Telegram messaging failed");
            }
        } catch (error) {
            if (error instanceof ReferenceError) {
                console.log("Telegram messaging not activatied");
            } else {
                console.error(error);
            }
        }
    }
    console.log(message);
}

addEventListener("scheduled", (event) => {
    event.waitUntil(handleScheduled(event));
});