Server-Sent Events (SSE)

Route: /sse

Test and monitor Server-Sent Events streams — the one-way, server-to-client push protocol built on top of HTTP.

Features

• Connect to any SSE endpoint and watch events arrive in real time.
• Live event log with timestamps and event data.
• Connection status indicator (connecting / open / closed / error).
• Custom headers and request method (GET or POST) for the upstream stream.

How it works

The browser's native EventSource can't set custom headers and is blocked by CORS for cross-origin endpoints, so Acolyte proxies the stream through its own route handler: GET /api/sse (and POST for streams that require a request body). You provide the upstream endpoint via the url parameter and Acolyte relays the text/event-stream back to the browser.

Using it

1. Open SSE from the sidebar.
2. Enter the URL of an SSE endpoint.
3. Click Connect.
4. Watch events populate the log as they stream in.
5. Click Disconnect to close the connection.

Related

• REST APIs — for request/response HTTP.
• WebSockets — when you need to send data back to the server.
• API Reference → /api/sse