Stores

Store subscribers are types that are interested in receiving state updates from a store. Whenever the store updates its state it will notify all subscribers by calling the newState method on them. Subscribers need to conform to the StoreSubscriber protocol:

protocol StoreSubscriber {
    func newState(state: StoreSubscriberStateType)
}

Most of your StoreSubscribers will be in the view layer and update their representation whenever they receive a new state.