Examples

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

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

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

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.

Examples

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

const batch = stream.pipe(filter((e) => e.type === 'payment'), batch(100), debounce(5000));

Batching is automatic—control it via `batch(100)` or `batch({ size: 50, timeoutMs: 1000 })` to trade latency for throughput.