Changelog
The core queryhub object is a lightweight wrapper that manages the lifecycle of your event stream.
Metrics are published to standard formats (Prometheus, CloudWatch, DataDog) with zero configuration.
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));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.