PayHub - System Architecture (Public Safe)

Web Client Payment Form Mobile App Payment Integration Backend API REST/Webhooks Cloudflare Workers - API Gateway CORS • Rate Limiting • Request Validation Payment Service • Init Payment • Status Tracking • Webhook Verify Notification Service • SMS/Email • Telegram • Push Notifications Analytics Service • Events Tracking • Metrics • Reports Payment Gateways • Click • Payme • Uzum Transaction DB SQLite / D1 Transactions Cache Layer Cloudflare KV Redis (Optional) Audit Logs Event Log Compliance Message Queue Email Service SMS Gateway Monitoring

Architecture Components

Client Layer: Web & Mobile interfaces + Backend API clients
API Gateway: Cloudflare Workers - handles routing, validation, rate limiting
Services: Payment, Notification, Analytics, Payment Gateway Integration
External Gateways: Click, Payme, Uzum - third-party payment providers
Data Layer: Databases, caches, and audit logs for persistence and compliance
External Services: Message queues, email, SMS, and monitoring integrations