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This is a talk that I gave the SFBay Area Microservices and Cloud Native Apps meetup.
In a microservice architecture, each service has a private datastore in order to ensure that the services are loosely coupled. While loose coupling is essential, this architecture makes managing transactions and querying difficult. You can’t use traditional distributed transactions. Nor can you use distributed queries. In this talk you will learn about some patterns for solving these problems: Sagas, API Composition and Command Query Responsibility Segregation (CQRS).
Application architecture patterns
Cross cutting concerns