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Spring Microservices

Spring Microservices

By : V
4.7 (13)
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Spring Microservices

Spring Microservices

4.7 (13)
By: V

Overview of this book

The Spring Framework is an application framework and inversion of the control container for the Java platform. The framework's core features can be used by any Java application, but there are extensions to build web applications on top of the Java EE platform. This book will help you implement the microservice architecture in Spring Framework, Spring Boot, and Spring Cloud. Written to the latest specifications of Spring, you'll be able to build modern, Internet-scale Java applications in no time. We would start off with the guidelines to implement responsive microservices at scale. We will then deep dive into Spring Boot, Spring Cloud, Docker, Mesos, and Marathon. Next you will understand how Spring Boot is used to deploy autonomous services, server-less by removing the need to have a heavy-weight application server. Later you will learn how to go further by deploying your microservices to Docker and manage it with Mesos. By the end of the book, you'll will gain more clarity on how to implement microservices using Spring Framework and use them in Internet-scale deployments through real-world examples.
Table of Contents (12 chapters)
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11
Index

Streams for reactive microservices


Spring Cloud Stream provides an abstraction over the messaging infrastructure. The underlying messaging implementation can be RabbitMQ, Redis, or Kafka. Spring Cloud Stream provides a declarative approach for sending and receiving messages:

As shown in the preceding diagram, Cloud Stream works on the concept of a source and a sink. The source represents the sender perspective of the messaging, and sink represents the receiver perspective of the messaging.

In the example shown in the diagram, the sender defines a logical queue called Source.OUTPUT to which the sender sends messages. The receiver defines a logical queue called Sink.INPUT from which the receiver retrieves messages. The physical binding of OUTPUT to INPUT is managed through the configuration. In this case, both link to the same physical queue—MyQueue on RabbitMQ. So, while at one end, Source.OUTPUT points to MyQueue, on the other end, Sink.INPUT points to the same MyQueue.

Spring Cloud offers...

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