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README.md

Module 11: Microservices Architecture

🎯 Module Overview

Welcome to Module 11 of the Mastery AI Code Development Workshop! This module focuses on designing and implementing microservices architectures using AI-powered development techniques. You'll learn how to decompose monolithic applications, design service boundaries, implement inter-service communication, and handle the complexities of distributed systems.

Duration: 3 hours

Track: 🟠 Advanced

Prerequisites: Modules 1-10 completed

📚 Learning Objectives

By the end of this module, you will be able to:

  1. Design effective microservice boundaries using Domain-Driven Design principles
  2. Implement inter-service communication patterns (REST, gRPC, message queues)
  3. Handle distributed transactions using saga patterns
  4. Implement service discovery and load balancing
  5. Design resilient systems with circuit breakers and retry patterns
  6. Monitor and trace distributed requests across services
  7. Use GitHub Copilot to accelerate microservices development

🗂️ Module Structure

module-11-microservices-architecture/
├── README.md                 # This file
├── prerequisites.md          # Module-specific requirements
├── best-practices.md         # Production patterns and guidelines
├── troubleshooting.md        # Common issues and solutions
├── exercises/
│   ├── exercise1-foundation/    # Service decomposition basics
│   ├── exercise2-application/   # Real-world e-commerce system
│   └── exercise3-mastery/       # Production-ready platform
├── resources/
│   ├── architecture-diagrams/
│   ├── api-specifications/
│   └── docker-compose-files/
└── solutions/
    └── reference-implementations/

🛠️ Technologies Used

  • Languages: Python (FastAPI), Node.js (Express)
  • Communication: REST, gRPC, RabbitMQ, Redis
  • Service Mesh: Linkerd/Istio basics
  • Containers: Docker, Docker Compose
  • Orchestration: Kubernetes fundamentals
  • Monitoring: Prometheus, Grafana, Jaeger
  • AI Tools: GitHub Copilot, GitHub Models

📋 Exercises Overview

Exercise 1: Foundation - Service Decomposition (⭐)

Duration: 30-45 minutes
Success Rate: 95%

Build your first microservices system by decomposing a monolithic e-commerce application into three services: User Service, Product Service, and Order Service. Learn the fundamentals of service boundaries and REST communication.

Key Skills:

  • Service boundary identification
  • RESTful API design
  • Basic inter-service communication
  • Docker containerization

Exercise 2: Application - Real-World E-Commerce Platform (⭐⭐)

Duration: 45-60 minutes
Success Rate: 80%

Implement a complete e-commerce microservices platform with advanced patterns including API Gateway, service discovery, event-driven communication, and distributed caching.

Key Skills:

  • API Gateway pattern
  • Event-driven architecture
  • Service discovery
  • Caching strategies
  • Async communication

Exercise 3: Mastery - Production-Ready Financial Platform (⭐⭐⭐)

Duration: 60-90 minutes
Success Rate: 60%

Build a production-ready financial services platform with complete observability, security, resilience patterns, and distributed transaction handling using saga patterns.

Key Skills:

  • Saga pattern implementation
  • Circuit breakers
  • Distributed tracing
  • Security between services
  • Performance optimization
  • Chaos engineering readiness

🚀 Getting Started

  1. Review Prerequisites

    cd module-11-microservices-architecture
cat prerequisites.md
./scripts/check-requirements.sh

  2. Set Up Environment

    ./scripts/setup-module-11.sh

  3. Start with Exercise 1

    cd exercises/exercise1-foundation
code .

💡 Copilot Tips for This Module

  1. Service Design: Use comments to describe business capabilities before implementing
  2. API Contracts: Define OpenAPI specs first, let Copilot generate implementations
  3. Error Handling: Ask Copilot for resilience patterns specific to distributed systems
  4. Testing: Request integration tests that handle network failures

📊 Learning Outcomes

After completing this module, you'll have:

  • ✅ Designed and implemented a microservices architecture
  • ✅ Handled distributed system complexities
  • ✅ Implemented production-ready patterns
  • ✅ Used AI to accelerate microservices development
  • ✅ Built observable and resilient systems

🔗 Resources

⏭️ Next Steps

After completing this module, you're ready for:

  • Module 12: Cloud-Native Development
  • Module 13: Infrastructure as Code
  • Module 14: CI/CD with GitHub Actions

🆘 Need Help?

  • Check troubleshooting.md for common issues
  • Review exercise solutions in /solutions
  • Use GitHub Discussions for questions
  • Remember: Copilot is your pair programmer!

Remember: Microservices are not about technology, they're about business capabilities and team autonomy. Use AI to handle the complexity while you focus on the design!

📝 Exercises