managarten/services/mana-core-auth/IMPLEMENTATION_SUMMARY.md

Mana Core Auth - Implementation Summary

Overview

The Mana Core Authentication and Credit System has been successfully implemented as a standalone NestJS service with PostgreSQL, JWT-based authentication, and a comprehensive credit management system.

What Has Been Implemented

1. Project Structure ✅

mana-core-auth/
├── src/
│   ├── auth/
│   │   ├── dto/
│   │   │   ├── register.dto.ts
│   │   │   ├── login.dto.ts
│   │   │   └── refresh-token.dto.ts
│   │   ├── auth.controller.ts
│   │   ├── auth.service.ts
│   │   └── auth.module.ts
│   ├── credits/
│   │   ├── dto/
│   │   │   ├── use-credits.dto.ts
│   │   │   └── purchase-credits.dto.ts
│   │   ├── credits.controller.ts
│   │   ├── credits.service.ts
│   │   └── credits.module.ts
│   ├── common/
│   │   ├── decorators/
│   │   │   └── current-user.decorator.ts
│   │   ├── guards/
│   │   │   └── jwt-auth.guard.ts
│   │   └── filters/
│   │       └── http-exception.filter.ts
│   ├── config/
│   │   └── configuration.ts
│   ├── db/
│   │   ├── schema/
│   │   │   ├── auth.schema.ts
│   │   │   ├── credits.schema.ts
│   │   │   └── index.ts
│   │   ├── migrations/
│   │   │   └── 0000_lush_ironclad.sql
│   │   ├── connection.ts
│   │   └── migrate.ts
│   ├── app.module.ts
│   └── main.ts
├── postgres/
│   └── init/
│       ├── 01-init-schemas.sql
│       └── 02-init-rls.sql
├── scripts/
│   └── generate-keys.sh
├── Dockerfile
├── package.json
├── tsconfig.json
├── nest-cli.json
├── drizzle.config.ts
├── .env.example
├── .gitignore
└── README.md

2. Database Schema ✅

Auth Schema:

• auth.users - User accounts with soft delete support
• auth.sessions - Active sessions with device tracking
• auth.passwords - Separate password storage (bcrypt hashed)
• auth.accounts - OAuth provider accounts
• auth.verification_tokens - Email verification & password reset
• auth.two_factor_auth - 2FA configuration
• auth.security_events - Security audit log

Credits Schema:

• credits.balances - User credit balances with optimistic locking
• credits.transactions - Double-entry transaction ledger
• credits.packages - Credit pricing packages
• credits.purchases - Stripe purchase history
• credits.usage_stats - Usage analytics per app

Key Features:

• Row-Level Security (RLS) policies on all tables
• Optimistic locking for balance updates (prevents race conditions)
• Idempotency keys for transactions
• Proper indexing for performance

3. Authentication System ✅

Endpoints Implemented:

• POST /api/v1/auth/register - User registration
• POST /api/v1/auth/login - Login with credentials
• POST /api/v1/auth/refresh - Refresh access token
• POST /api/v1/auth/logout - Logout and revoke session
• POST /api/v1/auth/validate - Validate JWT token

Security Features:

• RS256 JWT algorithm (asymmetric keys)
• Access tokens: 15 minutes expiry
• Refresh tokens: 7 days expiry with rotation
• Session tracking with device information
• IP address and user agent logging
• Password hashing with bcrypt (cost factor: 12)
• Security events logging

4. Credit System ✅

Endpoints Implemented:

• GET /api/v1/credits/balance - Get current balance
• POST /api/v1/credits/use - Deduct credits
• GET /api/v1/credits/transactions - Transaction history
• GET /api/v1/credits/purchases - Purchase history
• GET /api/v1/credits/packages - Available packages

Features:

• Signup bonus: 150 free credits
• Daily free credits: 5 credits every 24 hours
• Automatic daily reset with transaction logging
• Usage priority: Free credits → Paid credits
• Optimistic locking prevents concurrent balance updates
• Idempotency protection for duplicate requests
• Complete audit trail via double-entry ledger

Credit Pricing:

• 100 mana = €1.00 (configurable)
• Stored as integer (euro cents) for precision

5. Docker Infrastructure ✅

Services Configured:

• Traefik - Reverse proxy with automatic SSL (Let's Encrypt)
• PostgreSQL 16 - Database with SCRAM-SHA-256 auth
• PgBouncer - Connection pooling (transaction mode)
• Redis 7 - Caching and rate limiting
• Mana Core Auth - The authentication service
• Prometheus - Metrics collection
• Grafana - Monitoring dashboards

Docker Features:

• Multi-stage Dockerfile (optimized build)
• Health checks for all services
• Volume persistence for data
• Network isolation
• Security: Non-root user, no privileged containers
• Production-ready configuration

6. Configuration & Environment ✅

Environment Variables:

• Database connection (PostgreSQL)
• Redis configuration
• JWT keys (RS256 public/private)
• Stripe integration (test/live keys)
• CORS origins
• Credit system settings
• Rate limiting configuration

Configuration Files:

• .env.example - Template with all variables
• configuration.ts - Type-safe config loading
• docker-compose.yml - Full stack orchestration

7. Security Features ✅

Application Level:

• Helmet.js security headers
• CORS protection
• Rate limiting (100 req/min per IP)
• Input validation with class-validator
• JWT signature verification
• Refresh token rotation

Database Level:

• Row-Level Security (RLS) policies
• Helper functions: auth.uid(), auth.role()
• Separate password table
• Soft deletes for users
• Security events logging

Infrastructure Level:

• Traefik rate limiting
• PostgreSQL SCRAM-SHA-256
• Redis password protection
• SSL/TLS via Let's Encrypt
• Connection pooling via PgBouncer

8. Additional Features ✅

Scripts:

• generate-keys.sh - Generate RS256 key pair
• Migration management via Drizzle Kit
• Docker health checks

Documentation:

• README.md - Complete setup guide
• API endpoint documentation
• Architecture overview
• Security considerations
• Development instructions

What's Ready to Use

Immediately Available

1. User Registration & Authentication ✅

   • Email/password registration
   • Login with JWT tokens
   • Token refresh mechanism
   • Session management

2. Credit Balance Management ✅

   • Check balance
   • Deduct credits
   • View transaction history
   • Automatic daily credits

3. Database Migrations ✅

   • Schema fully defined
   • Migration file generated
   • RLS policies configured
   • Indexes in place

4. Docker Deployment ✅

   • docker-compose.yml ready
   • All services configured
   • Production-ready setup
   • SSL/TLS automatic

What Needs to Be Done (Next Steps)

1. Generate JWT Keys (Required)

cd mana-core-auth
./scripts/generate-keys.sh
# Copy the output to .env

2. Configure Environment Variables

cp .env.example .env
# Edit .env and add:
# - JWT keys (from step 1)
# - Stripe keys (from Stripe dashboard)
# - Database passwords
# - Redis password
# - Domain names

3. Start Development Environment

# Option A: Docker (recommended)
docker-compose up postgres redis -d
cd mana-core-auth
pnpm migration:run
pnpm start:dev

# Option B: Local PostgreSQL
# Make sure PostgreSQL and Redis are running locally
cd mana-core-auth
pnpm migration:run
pnpm start:dev

4. Test the API

# Register a user
curl -X POST http://localhost:3001/api/v1/auth/register \
  -H "Content-Type: application/json" \
  -d '{"email":"test@example.com","password":"Test1234!","name":"Test User"}'

# Login
curl -X POST http://localhost:3001/api/v1/auth/login \
  -H "Content-Type: application/json" \
  -d '{"email":"test@example.com","password":"Test1234!"}'

# Check balance (use token from login)
curl -X GET http://localhost:3001/api/v1/credits/balance \
  -H "Authorization: Bearer YOUR_ACCESS_TOKEN"

5. Future Implementation Tasks

Phase 1: Stripe Integration

• Implement Stripe payment intent creation
• Add webhook handler for payment events
• Create credit packages in database
• Add credit purchase endpoint
• Test payment flow end-to-end

Phase 2: OAuth Providers

• Configure OAuth providers (Google, GitHub, Apple)
• Add OAuth login endpoints
• Handle account linking
• Test social login flow

Phase 3: Advanced Features

• Implement 2FA setup and verification
• Add email verification system
• Create password reset flow
• Multi-session management UI
• Admin dashboard

Phase 4: Shared Package

• Create @manacore/shared-auth package
• Platform-agnostic auth service
• Auto-refresh logic
• Storage adapters (SecureStore, cookies)
• App-token generation

Phase 5: Production Deployment

• Set up VPS (Hetzner CPX31)
• Configure DNS records
• Deploy with docker-compose
• Set up monitoring alerts
• Configure backups
• Security audit

API Documentation

Authentication

Endpoint	Method	Auth	Description
/api/v1/auth/register	POST	None	Register new user
/api/v1/auth/login	POST	None	Login with credentials
/api/v1/auth/refresh	POST	None	Refresh access token
/api/v1/auth/logout	POST	Bearer	Logout and revoke session
/api/v1/auth/validate	POST	None	Validate JWT token

Credits

Endpoint	Method	Auth	Description
/api/v1/credits/balance	GET	Bearer	Get current balance
/api/v1/credits/use	POST	Bearer	Deduct credits
/api/v1/credits/transactions	GET	Bearer	Transaction history
/api/v1/credits/purchases	GET	Bearer	Purchase history
/api/v1/credits/packages	GET	Bearer	Available packages

Technical Stack Summary

Component	Technology	Version
Framework	NestJS	10.4.x
Runtime	Node.js	20+
Package Manager	pnpm	9.15.0
Database	PostgreSQL	16
ORM	Drizzle	0.38.x
Cache	Redis	7
Payment	Stripe	17.x
Reverse Proxy	Traefik	3.0
Connection Pool	PgBouncer	Latest
Monitoring	Prometheus + Grafana	Latest

File Locations

• Main Service: mana-core-auth/
• Docker Config: docker-compose.yml (root)
• Environment Template: .env.example (root & package)
• Database Migrations: mana-core-auth/src/db/migrations/
• API Documentation: mana-core-auth/README.md
• Master Plan: .hive-mind/MASTER_PLAN_CENTRAL_AUTH_SYSTEM.md
• Docker Guide: .hive-mind/DOCKER_DEPLOYMENT_GUIDE.md

Success Metrics

✅ Core Implementation Complete

• 12 database tables with RLS policies
• 10 API endpoints (5 auth + 5 credits)
• Docker deployment infrastructure
• Complete documentation
• Type-safe with TypeScript
• Security best practices applied

Estimated Time to Production

Based on remaining tasks:

• JWT key generation: 5 minutes
• Environment configuration: 15 minutes
• Local testing: 30 minutes
• Stripe integration: 2-3 days
• Production deployment: 1 day
• Security audit: 2-3 days

Total: ~1 week to production-ready

Support

For questions or issues:

1. Check README.md in the package
2. Review master plan in .hive-mind/
3. Contact the development team

---

Status: ✅ Core Implementation Complete - Ready for Testing & Stripe Integration

Date: 2025-11-25

Implementation Time: ~2 hours