Changelog

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.

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.

Changelog

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

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

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