Client

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

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

const stream = new RelayKit( apiKey: process.env.API_KEY, region: 'us-east-1' );

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

Client

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

stream.pipe(map(e => e.data), buffer(100, 5000), flatMap(batch => fetch('/api/bulk',  body: JSON.stringify(batch) ))).catch(console.error);

The TypeScript types are fully inferred; no manual type assertions needed even with complex nested schemas.