Microservices: Flexible Software Architecture (SHARLA SORGE's Library) by Eberhard Wolff

Author:Eberhard Wolff
Language: eng
Format: epub
Publisher: Addison-Wesley
Published: 2017-08-14T16:00:00+00:00

• Though REST and RPC approaches offer a simple programming model at the logic level, messaging makes a looser coupling possible and can cope better with the challenges of distributed communication via the network.

• Data replication enables high-performance access to large amounts of data. However, microservices should never use the same schema for their data since this means the internal data representation can no longer be changed.

Chapter 9. Architecture of Individual Microservices

When microservices are implemented, close attention must be paid to a number of key points. First, this chapter addresses the domain architecture of microservices (section 9.1). Next up is CQRS (Command Query Responsibility Segregation) (section 9.2), which can be interesting when implementing a microservice-based system. This approach separates data writes from data reads. Event Sourcing (section 9.3) places events at the center of the modeling. The structure of a microservice can correspond to a hexagonal architecture (section 9.4), which subdivides functionality into a logic kernel and adapters. Section 9.5 focuses on resilience and stability—essential requirements for microservices. Finally, technical approaches for the implementation of microservices, such as Reactive, are discussed in section 9.6.

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