A WebSocket Is an HTTP Request That Stops Being HTTP

Description

WebSockets aren't just "HTTP but bidirectional." They're a protocol that disguises itself as HTTP to sneak through your infrastructure and then stops being HTTP. In this video, we break down the four promises HTTP makes to your infrastructure, and what happens when WebSockets break three of them at once. You'll understand why load balancers get weird around WebSockets, why reconnection logic is on you, and why Server-Sent Events (SSE) can sometimes be a better choice. We cover: - HTTP's stateless, short-lived design underpinning modern web - Server-Sent Events: bending one rule to get real-time push - The WebSocket handshake: 101 Switching Protocols - The Sec-WebSocket-Key isn't encryption - Thread-per-connection vs event loops: server architecture for persistent connections - NAT gateways, ping/pong heartbeats, and silent connection drops - Thundering herd reconnection storms and how to prevent them Whether you're building chat, live dashboards, or collaborative editors, this video can help you pick the right protocol for your use case. More Videos: Software Egineering Basics - https://www.youtube.com/playlist?list=PLWP-VtjCVpWyLNBm3zz_sGyC5mVwiAOvj Software Design - https://www.youtube.com/playlist?list=PLWP-VtjCVpWx7kPq30XRN6O6LjVQ4VL95 #websockets #http #sse #serversentevents #backend #webdev #programming #protocols