TextText-based

`text/event-stream`

Server-Sent Events

Reference for text/event-stream, the MIME type for Server-Sent Events enabling real-time server-to-client streaming.

MIME Type Detector

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HTTP Content-Type Header

HTTP Header

Content-Type: text/event-stream; charset=utf-8

Quick Facts

MIME Type	text/event-stream
Category	Text
Type	Text-based (human-readable)

Common Usage

Server-Sent Events (SSE) provide a simple HTTP-based protocol for servers to push events to clients. Used for live notifications, real-time dashboards, stock tickers, social media feeds, AI chat streaming responses, and any scenario requiring server-to-client push without WebSocket complexity.

Code Examples

HTML

<!-- Set MIME type in meta or fetch headers -->
<meta http-equiv="Content-Type" content="text/event-stream">

Node.js

// Express.js
app.get('/file', (req, res) => {
  res.type('text/event-stream');
  res.send(data);
});

// Node.js http
res.writeHead(200, { 'Content-Type': 'text/event-stream' });

nginx

# nginx.conf — add to types block or use default
types {
    text/event-stream  stream;
}

# Or set for a specific location
location /api/ {
    default_type text/event-stream;
}