Passkeys Demo App

This repository contains a demo application showcasing passkey authentication implementation in Expo with abstractionkit.

Prerequisites

Before running the application, you need to set up a few things:

1. Environment Variables

Fill a envs.ts file in the root directory and fill in the required variables.

2. Web Server Configuration

The passkey functionality requires two configuration files to be hosted on your web server:

• .well-known/apple-app-site-association
• .well-known/assetlinks.json

Local Development Setup

For local development, you can use the included passkeys-server which simulates these configuration files using Express.js.

1. Configure the server by updating:

   • appIdentifier
   • package_name
   • sha256_cert_fingerprints

2. The passkeys server requires a tunneling service (like ngrok) to be accessible:

   # Start the server
   npm start
   
   # In a separate terminal, start ngrok
   ngrok http 3006

3. Update the RP ID:

   • Search for all occurrences of "37dd-178-19-186-193.ngrok-free.app" in the codebase
   • Replace them with your ngrok URL (without the https:// prefix)

Running the App

1. Install dependencies:

   npm install

2. Start the expo server and install the app on your device:

   npm run android / npm run ios