MVVM ViewModel

DateViewModel.swift

class accountViewModel {
  
    // MARK: Interfaces
    private var date: Date = Date() {
        didSet {
            DispatchQueue.main.async {
                self.updateDate?(self.date)
            }
        }
    }
    var updateDate: ((Date) -> Void)?

    // MARK: Object lifecycle
    init() {
        setup()
    }

    // MARK: View lifecycle
    private func setup() {
    }

    // MARK: Available calls
    func fetchDate() {
      fetchDateFromApi(completion: { fetchedDate in
         guard let date = fetchedDate else { return }
         self.date = date
      })
    }
}