method SseStream.next
The next event, or none when the stream ended. timeout bounds the wait for the next bytes.
Example:
use std.http { Server, ServerConfig, ServerHandle, Router, Request, Reply, Client, Header, HttpConfig, Response, WebSocket, WsConfig, WsKind, WsMessage, SseWriter, SseStream, SseConfig, SseEvent, BodyWriter, Http2, Http2Handle, ResponseStream, chunks }
fn run() -> () | NetError | DecodeError | Panicked net, io, time {
let srv = Server.bind(ServerConfig{ port: 0, followNode: false })?
defer srv.close()
let stop = srv.handle()
let base = "http://127.0.0.1:{srv.port()}"
let router = Router.new().get("/events", (req: Request) => Reply.sse((w: SseWriter) => {
w.event("first", id: "1")?
w.event("second", name: "update", id: "2", retry: 1500)?
}))
scope {
spawn stop.serve(router)
let s = SseStream.open("{base}/events")?
defer s.close()
var more = true
while more {
match s.next(5s)? {
ev? => print("{ev.id}: {ev.text}")
none => more = false
}
}
stop.shutdown()
()
}?
}
fn main() io, net, time {
match run() {
NetError _ => print("net error")
DecodeError _ => print("decode error")
Panicked _ => print("panicked")
_ => {}
}
}Output
1: first 2: second
pub(api) fn next(timeout: Duration? = none) -> SseEvent? | NetError netSince. 1.0.0-beta
Parameters
| Name | Type |
|---|---|
timeout | Duration? = none |
Returns
Errors
NetError- `Timeout` when nothing arrives in time, `Unavailable`, `ProtocolError`, `Cancelled`.
Effects
net
Defined in: std/http/http.oxl:5033