# Interceptors

Source: https://docs.nestjs.com/microservices/interceptors

Microservice interceptors work the same way as [regular interceptors](/interceptors). The following example uses a manually instantiated method-scoped interceptor. As with HTTP-based applications, you can also use controller-scoped interceptors (i.e., prefix the controller class with a `@UseInterceptors()` decorator).

```typescript

@UseInterceptors(new TransformInterceptor())
@MessagePattern({ cmd: 'sum' })
accumulate(data: number[]): number {
  return (data || []).reduce((a, b) => a + b);
}
```

> info **Hint** Global interceptors registered on the main HTTP application don't apply to microservices connected to a [hybrid application](/faq/hybrid-application) unless you set the `inheritAppConfig` option. See [sharing configuration](/faq/hybrid-application#sharing-configuration).