League Loader

A small plugin loader for League Client, supports CommonJS modules.

Features

After League is ready, just click "Open DevTools" to open League Client DevTools.

We also support insecure options for plugins, do not use it if you do not want to be banned.

To add a plugin, just create a .js file in the plugins folder.

// hello.js
console.log('Hello, League Client!')

All .js files in root of plugins folder will be executed after League ready, except file name starts with underscore.

plugins/
  _util.js      
  demo.js       ; will be executed after League starts.

You can use ES6 and CommonJS modules in your plugins.

// _util.js
module.exports = {
    greet: () => console.log('Hello, world')
}

// demo.js
const util = require('./_util')
util.greet()

We also support to require JSON and text files.

require('data.json') // -> parsed JSON
require('data.raw')  // -> string

To store data globally, you can use window object or global.

window.my_str = 'ABC'
global.my_num = 100

To open DevTools, just call:

window.openDevTools()

We have an example which modifies the settings UI to preppend a DevTools opener, see dev-tools.js.

You should use Visual Studio Code to develop your plugins, it supports intellisense, linter and autocomplete for modules.

League Client uses CEF 91/Chromium 91. The JS runtime is V8 engine in browser, that means you are writing JS for web browser.

When interacting with the DOM, you should add your code to onload or DOMContentLoaded event of window.

This project uses Visual Studio 2017 with

You can also use VS2015+ and different SDK version.

Build steps

See HOW_IT_WORKS for details.