Please make sure you've completed the basic Installation and the Server Installation before reading this part!
In this part of the installation, we're going to install the sourcemod.js NPM module! Thankfully, it's much easier than the server installation.
Installation
Go to the folder you'd like to install sourcemod.js to, and run the following command:
npm install sourcemod.js
All the neccessary modules should be installed into the node_modules folder. You can use the following to require it:
import { Server } from "sourcemod.js" // ES2016
const { Server } = require("sourcemod.js") // CJS
And that's it! sourcemod.js has successfully been installed. You can start writing plugins in JavaScript!
While the connection via WebSockets technically allows you to remotely control a SourceMod server using the plugin, it's ideal to have the server and the sourcemod.js plugin running on the same computer (or network) to minimize latency.