Client

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.

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

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

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

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

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