Documentation

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.

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

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.

Documentation

The TypeScript types are fully inferred; no manual type assertions needed even with complex nested schemas.

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

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