I'm implementing passkeys by following the example from the Food Truck sample project. I have nearly everything working, but there's one problem. I'm using the AuthorizationController environment value and passing that to my login and register functions, but when I call authorizationController.performAutoFillAssistedRequest, I don't see or know of any way to cancel it, so if the user tries to type in their username instead of use the autofill suggestion, the second (non-autofill) request throws the error, The operation couldn’t be completed. Request already in progress for specified application identifier. I know that ASAuthorizationController has a cancel() function, but is there any way to do this with AuthorizationController?
No .cancel() on AuthorizationController environment value?
If you perform the AutoFill request inside a Task, then you can cancel that task before starting a new one.
// Read the authorization controller from the SwiftUI environment
@Environment(\.authorizationController) private var authorizationController
// Store the task in a state variable
@State private var autoFillAuthorizationTask: Task<Void, Error>?
// Start the task when your view appears and stop it when it disappears
.onAppear {
autoFillAuthorizationTask = Task {
let result = try await authorizationController.performAutoFillAssistedRequests(/* requests */)
try await handleAutoFillAuthorizationResult(result)
}
}
.onDisappear {
autoFillAuthorizationTask?.cancel()
autoFillAuthorizationTask = nil
}
// Cancel the AutoFill task and start a new one from a Button
Button("Sign In") {
autoFillAuthorizationTask?.cancel()
autoFillAuthorizationTask = nil
Task {
let result = try await authorizationController.performRequests(/* requests */)
try await handleAuthorizationResult(result)
}
}