Changelog

The SDK provides both callback-based and Promise-based APIs, so you can use it with callbacks, async/await, or Observables.

Metrics are published to standard formats (Prometheus, CloudWatch, DataDog) with zero configuration.

const throttled = stream.throttle( rps: 100, burst: 200 ); const deduplicated = stream.dedup( key: 'event.id', window: 60000 );

Rate limiting is built in: configure token buckets, sliding windows, or adaptive limits that respond to backpressure.

Changelog

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

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));

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