Lean, Scalable, Production-Ready Architecture

1. Core Architecture Overview

System Components

Essential Stack:

1. Frontend Layer
• Framework: Next.js/React
• State: React Context/Redux
• Styling: Tailwind CSS
• Forms: React Hook Form

2. Backend Layer
• Runtime: Node.js
• Framework: Express/Next API
• Database: PostgreSQL
• Caching: Redis

3. Infrastructure
• Hosting: Vercel/Railway
• Database: Supabase/Railway
• Assets: AWS S3/Cloudinary
• CDN: Cloudflare/Vercel Edge

4. Essential Services
• Auth: Clerk/Auth0
• Payments: Stripe
• Emails: Resend/SendGrid
• Monitoring: Sentry

2. Service Architecture

Core Services Framework

1. Authentication Service
• User management
• Session handling
• Role-based access
• Social auth

2. Payment Service
• Subscription management
• Usage tracking
• Invoice generation
• Payment processing

3. Communication Service
• Email notifications
• In-app messaging
• Alert system
• Template management

4. Analytics Service
• User tracking
• Feature usage
• Error logging
• Performance monitoring

3. Database Schema

Essential Tables

Core Schema:

1. users
• id: uuid PRIMARY KEY
• email: string UNIQUE
• name: string
• role: enum
• created_at: timestamp
• settings: jsonb

2. subscriptions
• id: uuid PRIMARY KEY
• user_id: uuid FOREIGN KEY
• plan: string
• status: enum
• current_period_end: timestamp
• payment_method: jsonb

3. teams
• id: uuid PRIMARY KEY
• name: string
• owner_id: uuid FOREIGN KEY
• settings: jsonb
• created_at: timestamp

4. team_members
• team_id: uuid FOREIGN KEY
• user_id: uuid FOREIGN KEY
• role: enum
• joined_at: timestamp

4. API Structure

RESTful Endpoints

API Routes:

1. Authentication
POST /api/auth/login
POST /api/auth/register
POST /api/auth/logout
GET /api/auth/me

2. Subscriptions
POST /api/subscriptions/create
GET /api/subscriptions/current
PUT /api/subscriptions/update
POST /api/subscriptions/cancel

3. Teams
POST /api/teams/create
GET /api/teams/:id
PUT /api/teams/:id
POST /api/teams/invite

4. Core Features
GET /api/[resource]
POST /api/[resource]
PUT /api/[resource]/:id
DELETE /api/[resource]/:id

5. Security Implementation

Security Layers

Security Measures:

1. Authentication
• JWT tokens
• Refresh tokens
• Session management
• 2FA support

2. Authorization
• Role-based access
• Permission system
• API key management
• Rate limiting

3. Data Protection
• Input validation
• SQL injection prevention
• XSS protection
• CSRF tokens

4. Infrastructure
• SSL/TLS
• Data encryption
• Backup system
• Error handling

6. Deployment Setup

Infrastructure Configuration

Deployment Flow:

1. Development
• Local environment
• Docker containers
• Git workflows
• CI/CD pipelines

2. Staging
• Automated testing
• Data validation
• Performance testing
• Security checks

3. Production
• Zero-downtime deploy
• Rollback capability
• Health monitoring
• Backup system

7. Monitoring System