WebSockets allow a server application to connect to a web-based client written in JavaScript. This allows you to create web applications with two-way communication and to create updates such as chat rooms and more.

This recipe will explore writing a WebSocket server in Go and also demonstrate the process of a client consuming and communicating with a WebSocket server. It uses github.com/gorilla/websocket to upgrade a standard handler into a WebSocket handler and also to create the client application.