/r/theButton data logger

package.json

{
  "name": "redditbutton",
  "version": "1.0.0",
  "description": "",
  "main": "redditbutton.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "",
  "license": "ISC",
  "dependencies": {
    "websocket": "^1.0.18"
  }
}

redditbutton.js

var WebSocketClient = require('websocket').client;
var url = "wss://wss.redditmedia.com/thebutton?h=a8f3e1bd5f217cbb92d8e204c7db740774fa4023&e=1428114957";
var fs = require('fs');

var counter = 0;

var client = new WebSocketClient();
 
client.on('connectFailed', function(error) {
    console.log('Connect Error: ' + error.toString());
});
 
client.on('connect', function(connection) {
    console.log('WebSocket Client Connected');
    connection.on('error', function(error) {
        console.log("Connection Error: " + error.toString());
    });
    connection.on('close', function() {
        console.log('echo-protocol Connection Closed');
    });
    connection.on('message', function(message) {
        if (message.type === 'utf8') {
            data = JSON.parse(message.utf8Data);
            var payload = JSON.stringify(data.payload);

            fs.appendFile('./data.txt', payload + '\n', function(err){
            	if (err) console.error(err);
            })

            if (++counter % 15 === 0) {
            	console.log('counter', counter);
            }

        }
    });
    
});
 
client.connect(url);