apps/backend/test-spec.md

# E-Commerce Platform Architecture

## Overview
Building a microservices-based e-commerce platform with React frontend and Node.js backend.

## System Components
- Frontend: React + TypeScript
- Backend: Node.js + Express
- Database: PostgreSQL
- Authentication: JWT tokens
- Payment: Stripe integration

## Security
- HTTPS for all communications
- JWT authentication with 24-hour expiration
- Password hashing with bcrypt

## Performance Goals
- Page load time < 2 seconds
- API response time < 200ms
- Support 10,000 concurrent users

## Scalability
- Horizontal scaling with load balancer
- Database replication for read-heavy operations
- CDN for static assets