var server = new http.Server({
	"host": 127.0.0.1,
	"port": 8000
});

server.addListener("request", function(request) {
	if ("GET" === request.method) {
		request.writeHeader(...);
		request.write(...);
		request.close();
	}
});

server.addListener("data", function() {...});

server.listen();

// OR
//
new http.Server({
	"host": 127.0.0.1,
	"port": 8000
}, function(request) {
	if ("GET" === request.method) {...}
}).listen();