Article_002 https://nalexn.github.io/mvvm-state-redundancy/

Article_002_MVVM_06.swift

class PodcastsViewModel {

    private let service: PodcastsService
    
    let podcasts = BehaviorRelay<[Podcast]>(value: [])
    let isLoading = BehaviorRelay<Bool>(value: false)
    let onError = PublishRelay<Error> = PublishRelay()
    
    func loadPodcasts() {
        isLoading.accept(true)
        service.loadPodcasts { [weak self] result in
            self?.isLoading.accept(false)
            if let error = result.error {
                self?.onError.accept(error)
            }
            let records = result.value ?? []
            self?.podcasts.accept(records)
        }
    }
}