Passkey Mobile App Shell for Giano

[stvkoch]

🚀 Passkey Mobile App Shell for Giano

Hey team! I've implemented a solution to address the passkey gap in mobile environments, particularly for Giano.

The Problem:

A common pattern we use in some projects is creating a mobile app as a shell to run web apps. However, this approach lacks proper passkey examples, especially for Giano, because mobile apps using WebView components use a UI Controller that doesn't support passkey. While in-app browsers with session attributes enabled can support passkey, this functionality isn't available in WebView UI View Controllers.

The Solution:

I created a React Native mobile app shell that bridges the gap between web passkey implementations and native mobile capabilities. Here's what it does:

✅ Native Passkey Support: The app uses react-native-passkeys to handle iOS passkey creation and authentication natively
✅ Web App Integration: Runs web apps in a WebView with a custom bridge that intercepts passkey requests
✅ Seamless Bridge: When the web app calls navigator.credentials.get() or navigator.credentials.create(), the requests are automatically routed to the native passkey implementation
✅ Cross-Platform Ready: Built with Expo for easy deployment to both iOS and Android

Key Components:

Browser component with WebView integration
Custom bridge script that intercepts credential requests
Native passkey handling through React Native Passkeys
Message passing between web app and native layer

Tech Stack:

React Native + Expo
react-native-passkeys for native passkey support
react-native-webview for web app hosting
TypeScript for type safety

This approach allows us to run any web-based passkey example (like our custom Giano examples) as a mobile app while maintaining full passkey functionality that users expect on mobile devices.
The implementation follows our established patterns and is ready for testing and integration! 🚀

[coderabbitai]

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✨ Finishing Touches

🧪 Generate unit tests

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch feat/react-native-shell-for-giano-custom-example

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