SSE Dashboard Example

Live dashboard using PAGI::SSE for real-time metrics streaming.

Run

pagi-server --app examples/sse-dashboard/app.pl --port 5000

Visit http://localhost:5000/

Features

• Real-time server metrics streaming
• Automatic keepalive for proxy compatibility
• Reconnection support via Last-Event-ID
• Multiple event types (connected, reconnected, metrics)
• Subscriber tracking

API

• SSE /events - Metrics stream (2-second updates)
• GET /* - Static files from public/

Key Concepts

# Keepalive for proxies
$sse->keepalive(25);

# Handle reconnection
if (my $last_id = $sse->last_event_id) {
    await $sse->send_event(event => 'reconnected', ...);
}

# Cleanup on disconnect
$sse->on_close(sub { ... });

# Wait for disconnect
await $sse->run;