Legacy monoliths are everywhere. Rewriting them from scratch is risky, expensive, and often unnecessary. In Monolith to Microservices – The Modernization Playbook, you will learn how to modernize a real-world legacy application step by step using practical software architecture patterns used in enterprise systems.
This is not a theory-only microservices course. You will work through a complete modernization journey: starting with a monolith, discovering domain boundaries, moving toward a modular monolith, introducing domain events, adding a Strangler Fig API Gateway, extracting a real microservice, adding a service-owned database, implementing the Outbox Pattern, integrating RabbitMQ, and finally adding observability and resilience with OpenTelemetry, Aspire Dashboard, and Elastic/ELK.
You will learn how to break a monolith safely without breaking the business. The course uses a healthcare claims processing system as the case study, making the architecture realistic enough to demonstrate real modernization decisions: claims, members, policies, providers, documents, payments, notifications, audit trails, and reporting.
