Book Image

Spring 5.0 By Example

By : Claudio Eduardo de Oliveira
Book Image

Spring 5.0 By Example

By: Claudio Eduardo de Oliveira

Overview of this book

With growing demands, organizations are looking for systems that are robust and scalable. Therefore, the Spring Framework has become the most popular framework for Java development. It not only simplifies software development but also improves developer productivity. This book covers effective ways to develop robust applications in Java using Spring. The book has three parts, where each one covers the building of a comprehensive project in Java and Spring. In the first part, you will construct a CMS Portal using Spring's support for building REST APIs. You will also learn to integrate these APIs with AngularJS and later develop this application in a reactive fashion using Project Reactor, Spring WebFlux, and Spring Data. In the second part, you’ll understand how to build a messaging application, which will consume the Twitter API and perform filtering and transformations. Here, you will also learn about server-sent events and explore Spring’s support for Kotlin, which makes application development quick and efficient. In the last part, you will build a real microservice application using the most important techniques and patterns such as service discovery, circuit breakers, security, data streams, monitoring, and a lot more from this architectural style. By the end of the book, you will be confident about using Spring to build your applications.
Table of Contents (17 chapters)
Title Page
Copyright and Credits
Dedication
Packt Upsell
Contributors
Preface
Index

Chapter 9. Putting It All Together

There are some challenges to face when we adopt the microservices architectural style. The first one handles operational complexity; services such as service discovery and load balancer help us to tackle these points. We solved these challenges in the previous chapters and got to know some important tools while doing so.

There are some other important key points to handle in microservices adoption. The effective way to monitor what happens in our microservices environments is to monitor how many times microservices consume other microservices resources, such as HTTP APIs, and how many times they fail. If we have near real-time statistics, it can save the developer days of troubleshooting and error investigations.

In this chapter, we will create some services which help us monitor the Hystrix commands and aggregate the command's statistics in a distributed environment.

Security is an important characteristic in microservices architecture, especially because...