var http = require("http");
function process_request(req,res){
    var body = ‘First web server\n‘;
    var content_length = body.length;
    res.writeHead(200,{
        ‘content_length‘:content_length,
        ‘content_type‘:‘text/plain‘
    });
    res.end(body);
}
var s = http.createServer(process_request);
s.listen(8080);