index.js

import express from 'express';
import module from './modules/index.js';
import SourceRcon from '@hellz.fr/sourcecon';

const app = express();

app.get('/', (req, res) => {
	res.send('use /metrics?ip=<srcds ip>&port=<srcds port>&rconPassword=<rcon password>&game=<game>&sm=&ltboolean&gt&meta=&ltboolean&gtsp=&ltboolean&gt to get data');
});

app.get('/metrics', async (req, res) => {
	const config = {
		ip: req.query.ip,
		port: req.query.port,
		game: req.query.game,
		rconPassword: req.query.rconPassword,
	};
	config.metamod = req.query.metamod === 'true' || false;
	config.sourcemod = req.query.sourcemod === 'true' || false;
	config.sourcepython = req.query.sourcepython === 'true' || false;
	config.tags = req.query.tags || [];

	if (
		config.ip == null
		|| config.port == null
		|| config.rconPassword == null
		|| config.game == null
	) {
		res.send('Missing parameter');
		return;
	}

	if (!['csgo', 'cstrike', 'gmod', 'cs2'].includes(config.game)) {
		res.send('Incorrect game value, currently supported games are : csgo, gmod, cstrike');
		return;
	}

	try {
        const client = new SourceRcon.default(config.ip, Number.parseInt(config.port));
        console.log(`[${config.game} ${config.ip}:${config.port}] connecting`);
        await client.connect();
        console.log(`[${config.game} ${config.ip}:${config.port}] connected`);
        await client.auth(config.rconPassword);
        console.log(`[${config.game} ${config.ip}:${config.port}] auth`);
		const response = await module.request(config, client);
        console.log(`[${config.game} ${config.ip}:${config.port}] request`);
		await module.send(config, response, res);
        console.log(`[${config.game} ${config.ip}:${config.port}] send`);
	} catch (e) {
		if (e.code === 'EHOSTUNREACH') {
			console.error(`Unreachable host : ${e.address}:${e.port}`);
		} else {
			console.error(e);
		}
		await module.send(config, null, res, true);
	}
});

app.listen(9591);