title: How to limit my node.js client connections to 2?
body: <p>I am basically trying to only allow 2 clients to connect to the app concurrently. How should I approach this?</p>
  
  <p>This is my server code:</p>
  
  <pre><code>var express = require('express'),
      app = express(),
      server = require('http').createServer(app),
      io = require('socket.io').listen(server);
  
  var osc = require('node-osc');
  
  var client = new osc.Client('127.0.0.1', 12345);
  
  server.listen(3000);
  
  app.get('/', function(req, res){
  
      res.sendfile(__dirname + '/index.html');
  });
  
  io.sockets.on('connection', function(socket){
      socket.on('send message', function(data){
          client.send('/oscAddress', parseInt(data));
      });
  });
  </code></pre>