PersonController.groovy

@Delete("/delete/{id}")
HttpResponse<Map> deletePerson(Long id) {
    try {
        return HttpResponse.ok( [person: personService.delete(id), deleted: true] as Map )
    }
    catch(e) {
        return HttpResponse.unprocessableEntity().body(
                [
                        message: "Could not delete person with ID: ${id}"
                ]
        ) as HttpResponse<Map>
    }
}