Streaming

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

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

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

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

Streaming

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

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

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