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GreenLens

Expo app for plant scanning, care tracking, lexicon browsing, and profile settings.

Run locally

  1. Install dependencies:
    • npm install
  2. Start Expo:
    • npm run start

iOS TestFlight (EAS)

Use these three commands in order:

  1. Set iOS build number:
    • npx eas-cli build:version:set -p ios
  2. Create production iOS build:
    • npx eas-cli build -p ios --profile production
  3. Submit latest iOS build to TestFlight:
    • npx eas-cli submit -p ios --latest

Lexicon SQLite maintenance

The server now uses a persistent SQLite database (server/data/greenlns.sqlite) and supports validated rebuilds.

  1. Install server dependencies:
    • cd server && npm install
  2. Run the server:
    • npm run start
  3. Rebuild plants from the local lexicon batch constants:
    • npm run rebuild:batches
  4. Check duplicates and import audits:
    • npm run diagnostics

For protected rebuild endpoints, set PLANT_IMPORT_ADMIN_KEY and send x-admin-key in requests.

Local plant images

The lexicon now supports storing plant image paths in SQLite as local public paths instead of external URLs.

Recommended structure:

  • Database field: imageUri
  • Value example: /plants/monstera-deliciosa.webp
  • File location on disk: server/public/plants/monstera-deliciosa.webp

Notes:

  • The Express server serves server/public/plants at /plants/*.
  • Remote https://... image URLs still work, so migration can be incremental.
  • Keep the database focused on metadata and store only the image path, not binary blobs.

Billing and backend simulation

The app now uses a backend API contract for paid AI features:

  • Scan AI (/v1/scan)
  • Semantic AI search (/v1/search/semantic)
  • Billing summary (/v1/billing/summary)
  • Health check AI (/v1/health-check)

The Node server in server/index.js now implements these /v1 routes directly and uses:

  • server/lib/openai.js for OpenAI calls
  • server/lib/billing.js for credit/billing/idempotency state

If EXPO_PUBLIC_BACKEND_URL is not set, the app uses an in-app mock backend simulation for /v1/* API calls. EXPO_PUBLIC_PAYMENT_SERVER_URL is used only for Stripe PaymentSheet calls (/api/payment-sheet). The in-app mock backend provides:

  • Server-side style credit enforcement
  • Atomic consumeCredit() behavior
  • Idempotency-key handling
  • Free and Pro monthly credit buckets
  • Top-up purchase simulation
  • RevenueCat/Stripe webhook simulation

This makes it possible to build UI and flow now, then replace mock endpoints with a real backend later.

Production integration notes

  • Keep OpenAI keys only on the backend.
  • Use app-store billing via RevenueCat or StoreKit/Play Billing.
  • Forward entitlement updates to backend webhooks.
  • Enforce credits on backend only; app should only display UX quota.
  • Recommended backend env vars:
    • OPENAI_API_KEY
    • OPENAI_SCAN_MODEL (for example gpt-5)
    • OPENAI_HEALTH_MODEL (for example gpt-5)
    • STRIPE_SECRET_KEY
    • STRIPE_PUBLISHABLE_KEY