About

Library to automate Hoyolab daily login rewards for:

• Honkai: Star Rail
• Genshin Impact
• Honkai Impact 3rd
• Tears of Themis

Example

import { checkin } from "@xan105/hoyolab-rewards";

console.log("Checking-in...");
const reward = await checkin("starrail", token, { lang: "en-us", loot: true });
if (reward) console.log(`Got: ${reward.cnt} x ${reward.name}`); 
//"Got: 20 x Stellar Jade"
console.log("✔️ done");

Install

npm install @xan105/hoyolab-rewards

API

⚠️ This module is only available as an ECMAScript module (ESM).

Named export

checkin(name: string, token: object, option?: object): Promise<void | object>

Check-in and get the daily reward for the specified game name using the given token for authentification.

Games

• starrail : Honkai: Star Rail
• genshin : Genshin Impact
• honkai : Honkai Impact 3rd
• themis : Tears of Themis

Token

Your session token represented as a plain object:

{
  ltoken: string,
  ltuid: string,
  mhyuuid: string,
  devicefp: string,
  devicefp_seed_id: string,
  devicefp_seed_time: string
}

To retrieve your session token. Go to the daily login page of the game you wish to automate:

• Honkai: Star Rail
• Genshin Impact
• Honkai Impact 3rd
• Tears of Themis

Open the console in the dev tool of your browser (F12) and type document.cookie. This will output something like:

ltoken=...; ltuid=...; G_ENABLED_IDPS=google; mi18nLang=en-us; DEVICEFP=...; DEVICEFP_SEED_ID=...; DEVICEFP_SEED_TIME=...; _MHYUUID=...

Use these key/pair values to create a plain object representing your session token.

Options

{
  lang?: string,
  loot?: boolean
}

• lang: string | "en-us"

  Language code. Try to keep it in sync with mi18nlang.

• loot: boolean | false

  Whether to return the reward output or not (eg: 20x Stellar Jade). This will require an additional network request.

Return value

When the loot option is set to true returns the reward output:

{
  icon: string, //icon url
  name: string, //reward name
  cnt: string //reward count
}

💡 Output is affected by the language code used.

❌ This promise will reject on error.

CLI

There is a crude CLI tool provided as an implementation example in the package.json bin field.

hoyolab-checkin --game=starrail

Token information can be either provided by environment variable or by arguments:

hoyolab-checkin --game=starrail --ltoken=... --ltuid=... [...]

environment variables are prefixed with HOYOLAB_ and are all uppercase.

set HOYOLAB_LTOKEN=...
set HOYOLAB_LTUID=...
...
hoyolab-checkin --game=starrail

GitHub action

Check out .github/workflows/hoyolab-daily-reward.yml found in this repo for an example of a github action running the above CLI on a daily schedule.