Auth

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

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

await stream.on('user.created', async (event) =>  console.log(event.data.email); );

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

Auth

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

const client = new relaykit.Client( auth: 'Bearer token', retry: true, timeout: 30000 );

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