# Create Custom Events

In BullMQ, creating a generic distributed realtime event emitter is possible by using our **QueueEventsProducer** class.

Consumers must use **QueueEvents** class to subscribe to those events that they are interested in.

```typescript
const queueName = 'customQueue';
const queueEventsProducer = new QueueEventsProducer(queueName, {
  connection,
});
const queueEvents = new QueueEvents(queueName, {
  connection,
});

interface CustomListener extends QueueEventsListener {
  example: (args: { custom: string }, id: string) => void;
}
queueEvents.on<CustomListener>('example', async ({ custom }) => {
  // custom logic
});

interface CustomEventPayload {
  eventName: string;
  custom: string;
}

await queueEventsProducer.publishEvent<CustomEventPayload>({
  eventName: 'example',
  custom: 'value',
});
```

Only eventName attribute is required.

{% hint style="warning" %}
Some event names are reserved from [Queue Listener API Reference](https://api.docs.bullmq.io/interfaces/v5.QueueListener.html).
{% endhint %}

## Read more:

* 💡 [Queue Events API Reference](https://api.docs.bullmq.io/classes/v5.QueueEvents.html)
* 💡 [Queue Events Listener API Reference](https://api.docs.bullmq.io/interfaces/v5.QueueEventsListener.html)
* 💡 [Queue Events Producer API Reference](https://api.docs.bullmq.io/classes/v5.QueueEventsProducer.html)


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.bullmq.io/guide/events/create-custom-events.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.