Backend Development
Backend development focuses on server-side logic, database interactions, API design, and system architecture. It's the foundation that powers user-facing applications.
TL;DR
- Backend handles business logic, data processing, and API endpoints
- Choose between monoliths, microservices, or serverless architectures
- REST and GraphQL are the dominant API paradigms
- Authentication, authorization, and security are critical components
Core Concepts
API Design
- RESTful principles and resource modeling
- GraphQL for flexible data querying
- gRPC for high-performance service communication
- API versioning and backward compatibility
Architecture Patterns
- Monolithic vs microservices vs serverless
- Event-driven architectures
- CQRS and event sourcing
- Domain-driven design (DDD)
Data & State
- Database selection and design
- Caching strategies (Redis, Memcached)
- Session management
- Transaction handling
Security
- Authentication (JWT, OAuth, OIDC)
- Authorization and role-based access control (RBAC)
- Rate limiting and throttling
- Input validation and sanitization