System Design
System Architecture
Description of microservices architecture and how services interact with each other
Microservices Architecture Principles
Our system follows Domain-Driven Design (DDD) principles with each microservice owning its domain and data.
Service Independence
- Each service has its own dedicated database
- Independent deployment and scaling
- Technology stack flexibility per service
- Fault isolation and resilience
- Team ownership and autonomy
Communication Patterns
- REST APIs for synchronous communication
- RabbitMQ for asynchronous messaging
- Event-driven architecture for loose coupling
- Circuit breaker pattern for resilience
- Service discovery and load balancing
Service Domain Breakdown
Account Domain
User Management
- User registration & profiles
- Authentication & login
- Account verification
- Password management
Authorization Domain
Access Control
- Role-based access control
- JWT token management
- Permission validation
- API gateway security
Content Domain
Media Management
- File uploads & processing
- CDN integration
- Image optimization
- Storage management
Communication Domain
Messaging
- Email delivery & templates
- Push notifications
- Message queue processing
- Event broadcasting
Data Flow & Integration Patterns
Database Per Service
Each microservice maintains its own database to ensure data autonomy and prevent tight coupling between services.
PostgreSQL
Redis Cache
Data Isolation
API Gateway Pattern
Centralized entry point for all client requests with routing, authentication, rate limiting, and monitoring.
Load Balancing
Rate Limiting
SSL Termination
Event-Driven Communication
Asynchronous messaging using RabbitMQ for loose coupling and improved system resilience.
RabbitMQ
Event Sourcing
Message Queues
Security & Monitoring
Comprehensive security with JWT tokens, role-based access control, and real-time monitoring.
JWT Auth
RBAC
Observability