Factorio basic RCON

// Remember to npm install simple-rcon
var Rcon = require('simple-rcon');
var client = new Rcon({
    host: 'localhost',
    port: instanceconfig.clientPort, // port factorio listens after RCON connections on
    password: instanceconfig.clientPassword, // RCON password
    timeout: 0
});
setTimeout(() => { client.connect(); }, 5000);

client.on('authenticated', function() {
    console.log('Authenticated!');
}).on('connected', function() {
    console.log('Connected!');
}).on('disconnected', function() {
    console.log('Disconnected!');
    // now reconnect
    client.connect();
});

// Now do whatever you want!
// silent-command doesn't show up in chat, nice to avoid spam :)
client.exec("/silent-command remote.call('clusterio', 'doStuff', 'Some data of some kind')");