Building a Real Time Sports Scoring Engine with WebSockets and DynamoDB Streams
The Problem Sports scoring sounds simple. One team scores a point, the number goes up, everyone sees it. But when you build it as a web application th…
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WebRTC 홈캠 앱: WebSocket 시그널링 서버 구축 경험
WebRTC 홈캠 앱: WebSocket 시그널링 서버 구축 경험 WebRTC는 P2P 영상 통신을 위한 강력한 도구입니다. 하지만 처음 연결을 맺는 시그널링 과정은 별도 서버의 몫입니다. 영상 데이터는 두 장치 간에 직접 흐르지만, 그 연결을 위한 정보 교환은 중간 …
Polymarket's price WebSocket can stall while connected (and the docs won't warn you)
Polymarket streams live crypto prices over its Real-Time Data Socket (RTDS) at wss://ws-live-data.polymarket.com . If you're building a bot on it, two…
From the Strait of Hormuz to Singapore: Building a Real-Time Ship Tracking Analyser with Flask and AISStream
A practical story about building a live vessel-tracking dashboard, hitting real-world data limitations, and turning a failed first location into a bet…
The Hard Part of Building a Realtime Binary Options Platform Was Not the Chart
From 2018 to 2024 I designed and implemented a production-deployed realtime binary options trading platform as the sole architect and full-stack engin…
Building an outbound-only WebSocket bridge for local AI agents
I work with AI agents every day. Claude Code, Copilot, Gemini CLI — running locally, with access to my filesystem, my repos, my tools. The results are…
Building a Live Solana TPS Meter with OrbitFlare's TypeScript SDK
Every Solana dashboard tells you the network's TPS. None of them tell you how busy the one program you care about is right now. Did Pumpfun cool off a…
Your WebSocket says "connected" but stopped sending data. Here's the bug TCP keepalive can't catch.
Two weeks ago, my crypto signal API silently failed for 22 hours. No errors. No exceptions. No crash. The service kept running, logs continued to flow…
Scaling WebSocket
WebSocket provides low-latency, bidirectional communication between clients and servers. It is a widely used solution for building real-time systems. …
How to Stream Stable Millisecond Ticks for Gold & Silver
If you’ve ever built a trading dashboard, bot, or real‑time monitor for XAUUSD / XAGUSD, you know the pain: Extreme volatility, dozens of ticks per se…