feat: typed Server-Sent Events (ctx.sse + SseEvent) - #173
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Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
…ple) Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Summary
Adds a first-class Server-Sent Events API, built entirely on the
ctx.streamprimitive (v0.9.0). Closes most of #2.SseEvent— typed events:SseEvent::new(&payload)serializes anySerializevalue to thedata:field;.event/.id/.retry+comment; multi-line-safe wire encoding.ctx.sse(stream)—text/event-streamresponse withCache-Control: no-cache,X-Accel-Buffering: no, noContent-Length.ctx.sse_keep_alive(stream, interval)— injects: pingwhen idle; terminates with the event stream.sse_channel() -> (SseSender, Stream)— mpsc push/broadcast helper;SseSender: Clone + Send.ctx.last_event_id()— surfaces theLast-Event-IDheader for app-driven resume.app.sse(path, handler)— GET route sugar.Design
No new dependency (reuses
futures-util, tokiompsc,serde_json) and no Cargo feature — always available, like streaming. Additive only → patch (0.9.1).Scoped to the SSE transport (layer A). The tRPC-style ts-rs-derived typed subscriptions (layer B) remain a separate roadmap item — the roadmap row is split accordingly.
Tests
SseEventencoding (data/event/id/retry lines, multi-line split, comment).tests/sse.rs): headers + noContent-Length+ wire frames;sse_channeldelivery; keep-alive passthrough + idle ping;last_event_id;app.sseroute.Docs
New
sse.mdx+ sidebar, api-reference entries, README, roadmap split, runnableexamples/sse(browserEventSource+ documented TS wrapper).🤖 Generated with Claude Code