Client

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

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

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

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

Client

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

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

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