Module 1: Introduction to Microservices
- Evolution from Monolithic to Microservices
- Characteristics of Microservices architecture
- Benefits & Challenges
- Use cases in modern applications
- Domain-Driven Design overview
Module 2: Service Design & Architecture
- Bounded Contexts (DDD)
- Event-Driven Architecture
- API Design & Versioning
- Hexagonal / Clean Architecture Basics
- Service Registry & Discovery
- Communication Patterns:
- Sync: REST/gRPC
- Async: Events & Message Brokers
Module 3: Technologies & Tools Overview
- Node.js, Java, Go (overview) for Microservices
- Framework options: Express.js, Spring Boot, NestJS
- Messaging: Kafka, RabbitMQ
- Databases: SQL & NoSQL, Polyglot persistence
Module 4: RESTful Microservices with Node.js
- Express.js/Microservices Setup
- Folder structure & code organization
- Business logic separation
- Handling CRUD operations
- Config & Environment Management
Module 5: Secure Authentication & Authorization
- OAuth2, JWT, Refresh Tokens
- API Gateway & Central Auth service
- RBAC (Role-Based Access Control)
- Secure token storage & rotation
Module 6: API Gateway & Traffic Management
- Why API Gateway?
- Gateway patterns
- Tools: Kong, NGINX, AWS API Gateway
- Rate Limiting & Throttling
- Circuit Breaker pattern (Hystrix/Resilience4J)
Module 7: Inter-Service Communication
- REST vs gRPC vs Messaging
- Synchronous vs Asynchronous flows
- Event-driven microservices
- Message brokers (Kafka / RabbitMQ)
- Event sourcing basics
Module 8: Databases & Data Management
- Database per service
- Saga Pattern for distributed transactions
- Eventual consistency
- Caching (Redis)
- Backup/Restore strategies
Module 9: Containerization & Orchestration
- Docker concepts & image creation
- Multi-container apps (Docker Compose)
- Kubernetes (Basics to Hands-on):
- Pods, Services, Deployments
- ConfigMaps & Secrets
- Auto-scaling (HPA)
Module 10: Logging & Monitoring
- Centralized Logging (Elastic Stack, Loki, Fluentd)
- Metrics & Tracing (Prometheus, Grafana, OpenTelemetry)
- Health Checks & Alerts
- Observability 3 Pillars
Module 11: CI/CD & DevOps for Microservices
- GitHub Actions / GitLab CI pipeline setup
- Canary & Blue-Green Deployments
- Rolling Updates in Kubernetes
- Version control strategy (GitFlow)
Module 12: Security & Best Practices
- OWASP for APIs
- Secrets management (Vault, KMS)
- SSL/TLS encryption
- Zero-trust network concepts
Module 13: Microservices Patterns & Anti-Patterns
- Design Patterns:
- Saga, Choreography vs Orchestration
- Sidecar, Strangler Fig, Fan-Out/Fan-In, CQRS
- Anti-patterns:
- Shared Database
- Too many services
- God Service
Module 14: Hands-on Real-World Project
You will build a complete enterprise-level system:
✔ Authentication Service
✔ Order Service
✔ Inventory Service
✔ Notification Service
✔ Central API Gateway
✔ Kafka/RabbitMQ based communication
✔ Docker + Kubernetes deployment