Supabase Realtime: Building Live Applications Without Polling
Supabase Realtime uses WebSockets to push database changes directly to clients, eliminating inefficient polling. Build a live chat app in minutes.
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supabaseDiagnosing Socket.IO v4 Transport Fallback to Long-Polling
A diagnostic guide for Socket.IO v4 when clients fall back to HTTP long-polling instead of WebSocket. Covers recognizable symptoms, cause table, ordered checks, targeted fixes, escalation criteria, and verification commands.
nginx
socketioDesigning Trello's Real-Time Board Sync: Requirements, Minimal Architecture, and Operational Guardrails
Explore the minimal architecture behind Trello's real-time board sync, covering requirements, trust boundaries, operational metrics, failure modes, and when the design would need to evolve.
trelloReal‑Time Event Listening with Web3.js eth.subscribe
Learn how to listen to smart contract events in real time using Web3.js eth.subscribe, handle reconnections, and weigh the trade‑offs of persistent WebSocket connections.
web3jsHandling Request-Response Patterns in Socket.IO with Acknowledgements
Stop relying on fire-and-forget emits. Learn how to use Socket.IO acknowledgements and timeouts to create reliable request-response patterns over WebSockets.
Efficiently Filtering Contract Events with Web3.js v1.x
Learn how to use Web3.js event subscriptions with indexed filters to listen only to the blockchain events you need, reducing node load and enabling real‑time updates.
Reflex State Management: How Python-Only Reactive State Actually Works (and Where It Bites)
Reflex keeps UI state on the server and pushes diffs over a WebSocket, so Python developers never touch JavaScript. Here's how the reactive model works, a runnable example, and where it strains.
python
reflexLoad Testing Real-Time Apps with Gatling's WebSocket Support
Load testing real-time applications requires WebSocket support. Gatling's built-in WebSocket simulation handles bidirectional communication for chat apps, live dashboards, and collaborative tools with memory-efficient non-blocking I/O.
Architecture note: Using SurrealDB LIVE queries in a backend service
Learn how to safely use SurrealDB’s LIVE queries in a backend service: requirements, minimal server/backend design, trust boundaries, operational checks, failure modes, and when to redesign.
surrealdb