client/server

Writing UDP server with Node.js Different application require different design of networking protocols. Everything that is built for web is using HTTP (recently WebSockets and WebRTC too for real-time data). If your clients are not browsers and you need reliable and guaranteed channel your choice is TCP/IP. There's however one more protocol that is often used for the cases when the speed is more important that delivery guarantees and ordering: UDP. UDP stands for Unified Datagram Protocol and it shines in the applications like fast-paced online gaming.