keychain
3 notes.
Test Face ID in the iOS Simulator from the command line
The Simulator's Features menu has three Face ID items: Enrolled, Matching Face and Non-matching Face. All three are notifications you can post with simctl, so a script can enroll a face, wait for the prompt and answer it. The one thing the simulator will not do is enforce biometric access control on a Keychain item.
Flutter Login and Signup Screen tutorial: iOS + Android + PHP 8 + Biometrics
A Flutter app for iOS and Android with signup, login, logout and Face ID or fingerprint unlock, talking to a PHP 8 API. The session token goes in the Keychain or the Android Keystore, and the forms work with password AutoFill on both platforms.
iOS Login and Signup Screen tutorial: SwiftUI + iOS 26 + PHP 8 + Face ID
Eleven years after the Swift 2 version, here is the login and signup tutorial again: SwiftUI screens, async/await networking, the session token in the Keychain, Face ID unlock, and a PHP 8 API that stores passwords and tokens the way they should be stored.