Ritenoob/eas-mobile-deployment

EAS Mobile Deployment

Problem

RidenDine mobile app (Expo SDK 50) uses EAS for iOS/Android builds and deployments. EAS Build compiles native code in the cloud, EAS Submit pushes to app stores, EAS Update delivers OTA updates for JavaScript changes.

Context / Trigger Conditions

Use this skill when:

• Building for iOS or Android
• Submitting to App Store or Play Store
• Configuring app signing and credentials
• Managing development/preview/production builds
• Deploying OTA updates
• Debugging build failures

Pattern 1: EAS Configuration

Location: apps/mobile/eas.json

{
  "cli": {
    "version": ">= 5.0.0"
  },
  "build": {
    "development": {
      "developmentClient": true,
      "distribution": "internal",
      "ios": {
        "simulator": true
      }
    },
    "preview": {
      "distribution": "internal",
      "ios": {
        "simulator": false
      }
    },
    "production": {
      "autoIncrement": true
    }
  },
  "submit": {
    "production": {
      "ios": {
        "appleId": "[email protected]",
        "ascAppId": "1234567890",
        "appleTeamId": "TEAMID"
      },
      "android": {
        "serviceAccountKeyPath": "./google-service-account.json",
        "track": "internal"
      }
    }
  }
}

Pattern 2: Building for Development

cd apps/mobile

# iOS Simulator
eas build --profile development --platform ios

# Android Emulator
eas build --profile development --platform android

# Install on device
eas build:run -p ios

Pattern 3: Building for Production

# iOS Production Build
eas build --profile production --platform ios

# Android Production Build
eas build --profile production --platform android

# Both platforms
eas build --profile production --platform all

Pattern 4: App Store Submission

# Submit iOS to App Store
eas submit --platform ios --latest

# Submit Android to Play Store
eas submit --platform android --latest

Pattern 5: OTA Updates

# Publish update to production channel
eas update --channel production --message "Bug fixes"

# Publish to preview channel
eas update --channel preview --message "New feature testing"

# View update status
eas update:view --channel production

Debugging Build Failures

Issue: Credentials not configured

Fix: Run eas credentials to set up iOS/Android signing

Issue: Build timeout

Fix: Check for large dependencies, optimize bundle size

Issue: Native module error

Fix: Verify expo-dev-client installed, rebuild development client

References

• EAS Build: https://docs.expo.dev/build/introduction/
• EAS Submit: https://docs.expo.dev/submit/introduction/
• EAS Update: https://docs.expo.dev/eas-update/introduction/