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Server-Sent Events

A server push technology enabling a client to receive automatic updates from a server via an HTTP connection.

Definition

A server push technology enabling a client to receive automatic updates from a server via an HTTP connection.

Use case

Streaming AI response tokens (like ChatGPT outputs) live from the server to the browser UI.

Related terms

Documentation

Using server-sent events

MDN · Docs · link checked 2026-10-16

One-way live updates over plain HTTP, ideal for feeds and tokens.

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