jacobsapps

final class ContactsService {
    let userAPI = UserAPI()
    
    func fetchUser() async throws {
        try await userAPI.fetchAllUsersInContacts()
    }
}

jacobsapps

actor TaskActor {
    private var cachedTask: Task<Void, Error>?

    func run(_ operation: @escaping @Sendable () async throws -> Void) async throws {
        if cachedTask == nil {
            cachedTask = Task {
                try await operation()
            }
        }

jacobsapps

final class ContactsService {
    let userAPI = UserAPI()
    private(set) var contacts = [Contact]()
    
    func fetchContacts() async throws {
        contacts = try await userAPI.fetchAllUsersInContacts()
    }
}

jacobsapps

actor TaskActor<T> {
    private var cachedTask: Task<T, Error>?

    func run(_ operation: @escaping @Sendable () async throws -> T) async throws -> T {
        if cachedTask == nil {
            cachedTask = Task {
                try await operation()
            }
        }

jacobsapps

final class ContactsService {
    let userAPI = UserAPI()
    private(set) var contacts = [Contact]()
    private let contactsActor = TaskActor<[Contact]>()

    func fetchContacts() async throws {
        contacts = try await contactsActor.run { [weak self] in
            try await self?.userAPI.fetchAllUsersInContacts() ?? []
        }
    }

jacobsapps

.onTapGesture {
    showButton = true
    hideSkipButtonTask = Task {
        try await Task.sleep(for: .seconds(2))
        showButton = false
    }
}

jacobsapps

.onTapGesture {
    showButton = true
    hideSkipButtonTask?.cancel()
    hideSkipButtonTask = Task {
        try await Task.sleep(for: .seconds(2))
        try Task.checkCancellation()
        showButton = false
    }
}

jacobsapps

.onTapGesture {
    showButton = true
    hideSkipButtonTask?.cancel()
    hideSkipButtonTask = Task {
        try await Task.sleep(for: .seconds(2))
        showButton = false
    }
}

jacobsapps

@State private var showContinueButton = false

var body: some View {
    // ... 
    .task {
        try? await Task.sleep(for: .seconds(12))
        showContinueButton = true
    }

jacobsapps

class PollingManager {
    private var tasks: [UUID: Task<Double, Never>] = [:]
    
    func uploadDataAndReturnCash(for categories: [Category]) async -> Double? {
        try? await uploadDataToBackend(categories)
        for category in categories {
            let taskID = UUID()
            let task = Task.detached { [weak self] in
                return (try? await self?.pollBackend(for: category)) ?? 0.0
            }