deep-linking

Deep linking configures URL schemes, Universal Links (iOS), and App Links (Android) to route incoming URLs to specific app screens. Register a custom scheme like myapp://product/123, configure domain associations, and handle URL routing in your app to enable reliable navigation across platforms.

URL schemes use custom protocols (myapp://) and work immediately but are unreliable. Universal Links (iOS) and App Links (Android) use verified domain associations, requiring assetlinks.json and apple-app-site-association configuration, and provide secure, reliable deep linking without prompting users.

Yes. Expo Router integrates deep linking through routing patterns that map URLs to screens. Configure your app.json with scheme definitions and route handlers to connect incoming URLs to specific Expo Router screens on both iOS and Android.

Test deep links using simulator and emulator commands: on iOS use xcrun simctl openurl booted myapp://path, and on Android use adb shell am start -a android.intent.action.VIEW -d myapp://path. Confirm the correct screen opens to validate your configuration.

You need a registered domain for Universal/App Links, an app project for iOS and Android, and understanding of your routing structure. For domain verification, prepare apple-app-site-association (iOS) and assetlinks.json (Android) files to associate your domain with your app.

Unreliable deep linking usually stems from missing or incorrect domain association files, improper scheme registration, or incomplete URL routing handlers. Verify assetlinks.json and apple-app-site-association are correctly configured, schemes are registered in your app manifest, and URL handlers process incoming paths.