Battle Node v2.2

Battle Node v2.2 is a modern, TypeScript-based Node.js client for the BattlEye RCON protocol. It supports standard BattlEye commands for games like ARMA 2, ARMA 3, DayZ, and others.

Target: Node.js 22+ (Native ESM, Built-in Test Runner, Native Arg Parsing)

Features

TypeScript: Written in strict TypeScript (ES2023) with full type definitions.
Zero Dependencies: Uses only native Node.js APIs (net, dgram, events, util).
Native Scheduler: Built-in task runner for automated commands (Anti-overlap, Human-readable intervals).
Reliable UDP: Automatic retries with exponential backoff, command queuing, and multipart packet reassembly.
Multi-Transport: Supports UDP (standard) and TCP (proxy) with correct stream framing.
Observability: Built-in statistics (getStats()) and structured logging.

Documentation

📚 API Reference - Methods, Configuration, and Events.
🏗 Architecture & Internals - Design principles and transport logic.

Installation

npm install battle-node-v2

Note: This package is purely ESM. You must use import syntax and have "type": "module" in your project's package.json.

Usage

Basic Example

import { BattleNode, BattleNodeConfig } from 'battle-node-v2';

const config: BattleNodeConfig = {
  ip: '127.0.0.1',
  port: 2302,
  rconPassword: 'your_password'
};

const client = new BattleNode(config);

try {
  await client.login();
  console.log('Logged in!');
  
  // Use typed helper methods
  const players = await client.getPlayers();
  console.log('Players:', players);
  
  // Scheduler Example: Auto-save every 10 minutes
  client.scheduler.addTask('auto_save', '10m', async () => {
      console.log('Saving server...');
      await client.sendCommand('#save');
  });

} catch (error) {
  console.error('RCON Error:', error);
  client.disconnect();
}

Production Ready Example

This example demonstrates retry logic, custom logging, and graceful shutdown.

import { BattleNode, BattleNodeConfig } from 'battle-node-v2';

const config: BattleNodeConfig = {
  ip: '192.168.1.144',
  port: 2302,
  rconPassword: 'your_password',
  
  // Reliability Settings
  timeout: 5000,          // Connection timeout
  maxRetries: 3,         // Retry commands up to 3 times
  retryDelay: 1000,      // Exponential backoff base delay
  
  // Custom Logging
  logLevel: 'info',
  logger: (level, msg, meta) => {
     const timestamp = new Date().toISOString();
     console.log(`[${timestamp}] [${level.toUpperCase()}] ${msg}`, meta || '');
  }
};

const client = new BattleNode(config);

client.on('message', (msg) => console.log('[SERVER]:', msg));
client.on('disconnected', () => console.log('Disconnected from server'));

async function main() {
  try {
    await client.login();
    console.log('RCON Connected');

    // Auto-Announce every 2 hours
    client.scheduler.addTask('announcer', '2h', async () => {
        await client.say('Join our Discord!');
    });

  } catch (err) {
    console.error('Failed to connect:', err);
    process.exit(1);
  }
}

// Graceful Shutdown
process.on('SIGINT', () => {
    client.disconnect(); // Stops scheduler and closes socket
    process.exit(0);
});

main();

CLI Tool

The package includes a built-in CLI for quick server management using native argument parsing.

# Run directly with npx
npx battle-node-v2 -i 127.0.0.1 -p 2302 -P mypassword

# Or install globally
npm install -g battle-node-v2
battle-rcon --ip 192.168.1.144 --port 2302 --password mypassword

License

MIT