Delete

Service

public void delete(UUID id) {
    if (!departmentRepository.existsById(id)) {
        throw new ResourceNotFoundException("Department not found");
    }
    departmentRepository.deleteById(id);
}

Controller

@DeleteMapping(value = "/{id}")
public ResponseEntity<DepartmentDTO> delete(@PathVariable UUID id) {
    departmentService.delete(id);
    return ResponseEntity.noContent().build();
}