Architecture

Application Flow

Flow Overview

• User authentication and authorization

• Data flow between frontend and backend

• Integration with external services

• Error handling and logging

Flowchart

[User] -> [Authentication] -> [Frontend] <-> [Backend] <-> [External Services]

Backend Structure

Core Components

• Authentication service

• Data storage

• API endpoints

• Integration layer

• Monitoring system

Database Structure

• User management

• Session handling

• Data persistence

• Cache management

Tech Stack

Frontend

• Next.js 14

• React 18

• TypeScript

• Tailwind CSS

• Windsurf UI components

Backend

• Node.js

• Express.js

• Supabase

• Vercel deployment

Development Tools

• ESLint

• Prettier

• Jest

• Playwright

Integration Points

External Services

• Sensay API

• Supabase

• Vercel

• GitHub

Data Flow

1. User authentication

2. Data retrieval

3. API communication

4. Error handling

5. Logging

Security Considerations

Authentication

• JWT tokens

• Session management

• Rate limiting

• Input validation

Data Protection

• Encryption

• Secure storage

• Access control

• Audit logging

Monitoring and Logging

Monitoring

• Vercel deployment monitoring

• Error tracking

• Performance metrics

• User activity

Logging

• Error logs

• Access logs

• Performance logs

• Security logs

Scalability Considerations

Horizontal Scaling

• Load balancing

• Database sharding

• Caching strategy

• CDN usage

Vertical Scaling

• Resource optimization

• Code optimization

• Database optimization

• Network optimization