Node.js http handle GET method

var http = require('http');

var fs = require('fs');

function send404(response){
    response.writeHead(404,{'Content-Type':'text/plain'});
    response.write('Error 404: Resource not found.');
    response.end();/*from  w  w  w. j a v a2  s .  c o  m*/
}

var server = http.createServer(function(req,res){
   if(req.method == 'GET' && req.url == '/') {
       res.writeHead(200, {'content-type': 'text/html'});
       fs.createReadStream('./public/index.html').pipe(res);
   }else{
       send404(res);
   }
}).listen(3000);
console.log('server running on port 3000');