Server Sent Events vs WebSockets The 2026 Developer Guide

When you're building a modern web application, one of the first major architectural decisions you'll face is how to handle real-time communication. The two main contenders are Server-Sent Events (SSE) and WebSockets. If you're looking for the quick-and-dirty answer, it’s this: use SSE for one-way data streams from your server to the client, like notifications…

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