API

Error handling is explicit: catch failures at any stage, log them, and route bad events to a dead-letter queue without stopping the main pipeline.

Authentication tokens are rotated silently in the background; your code never handles credentials directly.

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

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

API

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

await stream.ack(event.id); const pipeline = stream.filter(e => e.amount > 100).map(e => ( ...e, fee: e.amount * 0.03 )).on('error', (err) => logger.error(err));

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