One article is enough to understand modern web-side instant messaging technology: WebSocket, socket.io, SSE - 即时通讯开发 - SegmentFault 思否
Handling Websocket Drops and Disconnections – QuickNode
Socket.io for Haskell folks - Speaker Deck
Inspecting web sockets — Firefox Source Docs documentation
Using WebSocket requests | Postman Learning Center
Multiplayer Pong game made with node.js + socket.io + express + p5.js - YouTube
A simple Node-RED flow implementing a "ping-pong" protocol based on... | Download Scientific Diagram
javascript - how to view websocket ping and pong frame in Chrome? - Stack Overflow
How it works | Socket.IO
A simple Node-RED flow implementing a "ping-pong" protocol based on... | Download Scientific Diagram
Bluetooth QML Ping Pong example | Qt Bluetooth 6.4.2
SocketIO Playground | Firecamp
javascript - How to see ping pong in web socket in iOS - Stack Overflow
Scaling Socket.IO - practical considerations | Ably Realtime
The Socket instance (server-side) | Socket.IO
socket.ioのパケットを(触りだけ)キャプチャ - Qiita
Server API | Socket.IO
Inspecting web sockets — Firefox Source Docs documentation
Bluetooth QML Ping Pong example | Qt Bluetooth 6.4.2
socket.ioのパケットを(触りだけ)キャプチャ - Qiita
Lab notes: Hacking our Ping Pong Table
How to implement WebSocket API JavaScript application with HTML Web Workers | Devportal
GitHub - daudich/PingPong: Made using Socket.io, Node.js, HTML5, CSS3, JavaScript
