Diag.js

var app = require('http').createServer(handler);
var io = require('socket.io').listen(app);
var fs = require('fs');
var bb = require('bonescript');

var htmlpage = '../html/diag.html';
app.listen(8080);

function handler(req, res){
    fs.readFile(htmlPage,
    function (err, data){
        if(err) {
            res.writeHead(500);
            return res.end('Error loading file : ' + htmlpage);
        }
        res.writeHead(200);
        res.end(data);
    });
}

function onConnect() {
    socket.on('digitalWrite', handleDigitalWrite);
}


function handleDigitalWrite() {
    var data = JSON.parse(message);
    bb.pinMode(data.pin, bb.OUTPUT);
    bb.digitalWrite(data.pin, data.value);
}

io.sockets.on('connect', onConnect);