[@rxap/nest-amqp](../wiki/globals) / MessageHandler

# Type Alias: MessageHandler()

> **MessageHandler**: (`msg`) => `Promise`\<`void`\> \| `void`

Defined in: [packages/nest/amqp/src/lib/amqp.service.ts:33](https://gitlab.com/rxap/libraries/cqrs/-/blob/b3efc64bb3a298aa043affe1613958c91a6aac2f/packages/nest/amqp/src/lib/amqp.service.ts#L33)

## Parameters

### msg

`ConsumeMessage`

## Returns

`Promise`\<`void`\> \| `void`