| name | expo-patterns |
| description | Expo and React Native patterns for mobile development with EAS Build, SDK integration, and native module configuration. Use when building Expo apps, configuring native features, or setting up app signing for store deployment. |
| allowed-tools | Bash, Read, Write, Edit, Grep, Glob, WebFetch |
Expo Patterns
Comprehensive skill for building production mobile apps with Expo and React Native.
Overview
Expo provides managed workflow for React Native development:
- Simplified native module configuration
- EAS Build for cloud-based app building
- OTA updates with expo-updates
- Push notifications with expo-notifications
- Cross-platform APIs for camera, location, etc.
Use When
This skill is automatically invoked when:
- Initializing new Expo/React Native projects
- Configuring native features (camera, location, notifications)
- Setting up EAS Build for iOS/Android
- Managing app signing and certificates
- Implementing OTA updates
Security: Credentials
CRITICAL: Never commit signing credentials
❌ NEVER commit: .p12, .mobileprovision, keystore files
✅ ALWAYS use: eas secret:create for sensitive values
✅ ALWAYS add to .gitignore: *.jks, *.p12, *.mobileprovision
Available Scripts
| Script | Description |
|---|
scripts/init-expo-project.sh | Initialize new Expo project with TypeScript |
scripts/setup-eas-build.sh | Configure EAS Build profiles |
scripts/setup-notifications.sh | Set up push notifications |
Available Templates
| Template | Description |
|---|
templates/app.json | Expo app configuration |
templates/eas.json | EAS Build configuration |
templates/env.example | Environment variables template |
CLI Commands
npx create-expo-app my-app --template tabs
eas build --platform ios --profile development
eas build --platform android --profile preview
eas submit --platform ios
eas submit --platform android
Best Practices
- Use expo-router for file-based routing
- Use expo-secure-store for tokens
- Set up EAS Build for consistent builds
- Implement OTA updates for quick fixes
