gistfile1.js

var net = require('net'),
    util = require('util'),
    EventEmitter = require('events').EventEmitter;

var ServerConnection = function() {
    var socket,
    receivedData = '';

    var connect = function connect(hostAddress, port) {
        socket = net.connect({
            host: "127.0.0.1",
            port: 1234
        });

        socket.on('connect', function() {
            console.log('Connected to: ' + hostAddress + ':' + port);

            external.emit('test');
        });
    };

    var disconnect = function disconnect() {
        if (isConnected) {
            socket.end();
        }
    };

    console.log(external);

    var ExternalInterface = function() {
        EventEmitter.call(this);

        this.connect = connect;
        this.disconnect = disconnect;
    };

    util.inherits(ExternalInterface, EventEmitter);

    var external = new ExternalInterface();

    return external;
};

module.exports = ServerConnection;