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keep_alive

typeway_server::sse

Function keep_alive 

Source 
pub fn keep_alive<S>(
    stream: S,
    interval: Duration,
) -> impl Stream<Item = SseEvent>
where
    S: Stream<Item = SseEvent> + Send + 'static,
Expand description

Inject periodic comment frames (:keepalive\n\n) into an SSE stream.

Many HTTP proxies and load balancers close idle connections after 30-60s. This helper interleaves the original events with synthetic keep-alive comments emitted at interval. Comments are ignored by clients per the SSE spec.