Changelog

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

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

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

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

Changelog

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

stream.on('*.created', async (event) =>  await db.insert('events', event); ,  concurrency: 50 );

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