# HandleSseResponseFn

**Kind:** Type

**Source:** [`packages/core/helpers/handler-metadata-storage.ts`](https://github.com/nestjs/nest/blob/master/packages/core/helpers/handler-metadata-storage.ts#L19)

**Part of:** [Core](subsystem-packages-core)

## Definition

```ts
< TResult extends Observable<unknown> = any, TResponse extends HeaderStream = any, TRequest extends IncomingMessage = any, >( result: TResult, res: TResponse, req: TRequest, ) => any
```