maternal-app/PROGRESS.md

Implementation Progress - Maternal App

Phase 0: Development Environment Setup ✅ COMPLETED

Completed Tasks

• ✅ React Native mobile app initialized with Expo + TypeScript
• ✅ NestJS backend API initialized
• ✅ Docker Compose infrastructure configured (PostgreSQL, Redis, MongoDB, MinIO)
• ✅ ESLint & Prettier configured for both projects
• ✅ Environment variables configured
• ✅ All Docker services running on non-conflicting ports

Docker Services:

• PostgreSQL: localhost:5555
• Redis: localhost:6666
• MongoDB: localhost:27777
• MinIO API: localhost:9002
• MinIO Console: localhost:9003

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Phase 1: Foundation & Authentication 🚧 IN PROGRESS

Completed Tasks

Database Schema & Migrations ✅

• ✅ TypeORM Configuration: Database module with async configuration

• ✅ Entity Models Created:

  • User - Core user authentication entity with email, password hash, locale, timezone
  • DeviceRegistry - Device fingerprinting with trusted device management
  • Family - Family grouping with share codes
  • FamilyMember - Junction table with roles (parent/caregiver/viewer) and permissions
  • Child - Child profiles with medical info and soft deletes
  • RefreshToken (via migration) - JWT refresh token management

• ✅ Database Migrations Executed:

  • V001: Core authentication tables (users, device_registry)
  • V002: Family structure (families, family_members, children)
  • V003: Refresh tokens table for JWT authentication

• ✅ Migration Infrastructure:

  • Migration tracking with schema_migrations table
  • Automated migration runner script
  • NPM script: npm run migration:run

Database Tables Verified

 users              - User accounts
 device_registry    - Trusted devices per user
 families           - Family groupings
 family_members     - User-family relationships with roles
 children           - Child profiles
 refresh_tokens     - JWT refresh token storage
 schema_migrations  - Migration tracking

In Progress

• 🔄 JWT authentication module implementation

Remaining Tasks

• ⏳ Build authentication service with bcrypt password hashing
• ⏳ Create authentication endpoints (register, login, refresh, logout)
• ⏳ Implement device fingerprinting validation
• ⏳ Create Passport JWT strategy
• ⏳ Add authentication guards
• ⏳ Build mobile authentication UI screens
• ⏳ Set up i18n for 5 languages (en-US, es-ES, fr-FR, pt-BR, zh-CN)

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Project Structure

maternal-app/
├── docs/                          # Comprehensive planning docs
├── maternal-app/                  # React Native mobile app
│   ├── src/                       # (To be structured)
│   ├── package.json
│   ├── .eslintrc.js
│   └── .prettierrc
├── maternal-app-backend/          # NestJS backend API
│   ├── src/
│   │   ├── config/
│   │   │   └── database.config.ts
│   │   ├── database/
│   │   │   ├── entities/
│   │   │   │   ├── user.entity.ts
│   │   │   │   ├── device-registry.entity.ts
│   │   │   │   ├── family.entity.ts
│   │   │   │   ├── family-member.entity.ts
│   │   │   │   ├── child.entity.ts
│   │   │   │   └── index.ts
│   │   │   ├── migrations/
│   │   │   │   ├── V001_create_core_auth.sql
│   │   │   │   ├── V002_create_family_structure.sql
│   │   │   │   ├── V003_create_refresh_tokens.sql
│   │   │   │   └── run-migrations.ts
│   │   │   └── database.module.ts
│   │   ├── app.module.ts
│   │   └── main.ts
│   ├── .env
│   └── package.json
├── docker-compose.yml
├── README.md
├── CLAUDE.md
└── PROGRESS.md (this file)

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Key Decisions & Architecture

Database Design

• ID Generation: Custom nanoid-style IDs with prefixes (usr_, dev_, fam_, chd_)
• Soft Deletes: Children have deleted_at for data retention
• JSONB Fields: Flexible storage for permissions, medical info
• Indexes: Optimized for common queries (email lookups, family relationships)

Authentication Strategy

• JWT with Refresh Tokens: Short-lived access tokens (1h), long-lived refresh tokens (7d)
• Device Fingerprinting: Track and trust specific devices
• Multi-Device Support: Users can be logged in on multiple trusted devices

Security Considerations

• Password hashing with bcrypt
• Device-based authentication
• Refresh token rotation
• Token revocation support
• COPPA/GDPR compliance preparation

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Next Steps

Immediate (Current Session)

1. Create authentication module with bcrypt
2. Implement JWT strategies (access + refresh)
3. Build authentication controller with all endpoints
4. Add device fingerprinting service
5. Create authentication guards

Next Session

1. Mobile authentication UI screens
2. i18n setup with 5 languages
3. Email verification flow
4. Password reset functionality

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Commands Reference

Backend

cd maternal-app-backend

# Start development server
npm run start:dev

# Run migrations
npm run migration:run

# Run tests
npm test

Mobile

cd maternal-app

# Start Expo
npm start

# Run on iOS
npm run ios

# Run on Android
npm run android

Infrastructure

# Start all services
docker compose up -d

# Check service status
docker compose ps

# View logs
docker compose logs -f

# Stop all services
docker compose down

Database

# Connect to PostgreSQL
docker exec -it maternal-postgres psql -U maternal_user -d maternal_app

# List tables
\dt

# Describe table
\d users

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Technical Debt / Notes

1. Node Version Warning: React Native Expo shows warnings for Node 18.x (prefers 20+), but it works fine for development
2. Security: All default passwords must be changed before production
3. ID Generation: Using custom nanoid implementation - consider using proper nanoid package
4. Migration Strategy: Currently using raw SQL - consider switching to TypeORM migrations for better TypeScript integration
5. Error Handling: Need to implement standardized error codes as per error-logging documentation

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Last Updated: Phase 1 - Database setup completed, authentication module in progress