Documentation

Batching is automatic—control it via `batch(100)` or `batch({ size: 50, timeoutMs: 1000 })` to trade latency for throughput.

Each event flows through a series of transformation stages, with built-in support for filtering, mapping, and conditional routing.

await stream.on('user.created', async (event) =>  console.log(event.data.email); );

The core relayhub object is a lightweight wrapper that manages the lifecycle of your event stream.

Documentation

Graceful shutdown waits for in-flight events to complete, then closes connections cleanly—no lost events, no crashes.

const batch = stream.pipe(filter((e) => e.type === 'payment'), batch(100), debounce(5000));

Each event flows through a series of transformation stages, with built-in support for filtering, mapping, and conditional routing.