```swift
func confirmAttribute() async {
do {
try await Amplify.Auth.confirm(userAttribute: .email, confirmationCode: "390739")
print("Attribute verified")
} catch let error as AuthError {
print("Update attribute failed with error \(error)")
} catch {
print("Unexpected error: \(error)")
}
}
```
```swift
func confirmAttribute() -> AnyCancellable {
Amplify.Publisher.create {
try await Amplify.Auth.confirm(userAttribute: .email, confirmationCode: "390739")
}.sink {
if case let .failure(authError) = $0 {
print("Update attribute failed with error \(authError)")
}
}
receiveValue: { _ in
print("Attribute verified")
}
}
```