Real-Time WebSockets Course | Build a Live Sports Dashboard with Node.js & PostgreSQL

Master WebSockets in this crash course, moving from core theory to building a high-frequency "Broadcast Engine." Learn how to ingest data from admin sources or APIs to deliver live match scores, commentary, and ball-by-ball updates to 100,000+ simultaneous users with sub-second latency. This project covers everything from the initial handshake to deployment, demonstrating how to architect a system that broadcasts real-time data to millions of clients without crashing the server. Hostinger: https://jsm.dev/sportz-hostinger + Use code JAVASCRIPTMASTERY Site24x7: https://jsm.dev/sportz-site24x7 ManageEngine: https://jsm.dev/sportz-manage-engine Arcjet: https://jsm.dev/sportz-arcjet CodeRabbit: https://jsm.dev/sportz-coderabbit Junie AI: https://jsm.dev/sportz-junie WebStorm: https://jsm.dev/sportz-webstorm 📋 Join the AI Course Waitlist: https://jsm.dev/sportz-ai 📋 Join the Backend Course Waitlist: https://jsm.dev/sportz-backend 🎁 Video Kit (Code, Assets, Prompts): https://jsm.dev/sportz-kit ⭐ Join JS Mastery Pro: https://jsm.dev/sportz-jsm ➤ Links not working? Some regions may need a VPN.   / discord     / jsmasterypro     / javascriptmastery     / javascriptmastery   Business Inquiries: [email protected] Timestamps: 00:00:00 — Introduction — Course 00:04:59 — The Real Time Shift 00:08:31 — Architecture 00:14:29 — Websocket in Action 00:19:58 — Websocket in Action (Demo) 00:50:06 — Socket Patterns 00:57:12 — Beyond The Socket 01:03:07 — Course Outro — Build 01:07:13 — Project Demo 01:10:08 — Hostinger 01:13:12 — Project Setup 01:21:33 — Database Schema 01:39:04 — Matches Rest API 02:04:38 — WebSocket Server 02:25:33 — Security with Arcjet 02:46:42 — Commentary Rest API 02:57:29 — Broadcast Commentary 03:20:41 — Site 24x7 APM 03:25:01 — Deployment, Seeding & Insights