How to update a Webflux object from repository and save it back I want to 1) get an object from my repository, 2) update that object and then 3) save it back. I've already done first two things: fun updateUniversity(id: ObjectId, newName: String, newCity: String, newYearOfFoundation: Int): Mono { return universityRepository .findById(id) .switchIfEmpty(Mono.error(NoSuchElementException())) .map { if (newCity.isNotEmpty()) it.city = newCity if...