Materializing State

Event-Driven Microservices need to materialize states. And it comes with the important things to think about. Two approaches to choose from: Internal state store or External state store Both have pros and cons. Both have important scalability and recovery considerations. Two approaches for changing data structures: Bebuilding and Migration Transactions and how to emulate them in order to implement Effectively Once processing. All of these is disclosed in the Chapter 7 of the book we are currently studying:

Introduction into Event-driven microservice (EDM) architecture consists of the following topics: two topologies content of events three types of events table-stream duality schemas for defining event data single writer principle features of event broker event broker vs message broker single source of truth principle scaling using containers and VMs microservice taxes that we should pay These topics are disclosed in the Chapter 2 of the book we are currently studying: