WebSockets

sample clients and servers

Implementing

Crystal

• Kemal has built-in support
• Lucky doesn’t
• Amber has an abstraction over WebSockets

JavaScript

• Client: WebSocket built in to browser and React Native
• Server: ws

Ruby

• Action Cable is not standard WebSocket protocol, and its client JS library only runs in the browser, not React Native
• faye-websocket is standard WebSockets

Testing

$ npm install -g wscat
$ wscat -c ws://localhost:3001