WebSocket vs SSE vs Polling: A Frontend Developer’s Guide to Real-Time Updates

<p>When spectr-ai analyzes a smart contract, it's not instant. The LLM needs time to reason through the code, identify vulnerabilities, and generate structured output. That

<p>API design patterns<br /> API event architecture<br /> API integration strategies<br /> API latency comparison<br /> API performance optimization<br /> API resource

<blockquote> <p><strong>Headline:</strong> Vercel Functions can now hold WebSocket connections open directly on Fluid Compute, the same runtime that already serves my regular API

<p>Polling in System Design...<br /> Polling is about repeatedly checking a resource eg. Server for new data or change in status of the device at a regular interval of time.</p>

<p>I got an email from Vercel.</p> <p>"You've used 75% of your free plan resources."</p> <p>I ignored it.</p> <p>A few hours later, I was at 100%.</p> <p>I'd been building

<p>Modern applications thrive on instant updates — from live chats and notifications to collaborative tools and trading dashboards. Traditional HTTP requests can only go so far

<p>Every monday.com integration I have built in the last two years has started with the same question. Do I poll the API on a schedule, or do I wire up a webhook? The honest

<h2> Webhooks vs Polling: Why Real-Time Integrations Matter in 2026 </h2> <p>In modern software, <strong>knowing that something happened is often just as important as knowing what