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

Creating the project


Now, we have a good idea about how we can use programming in Kotlin language. In this section, we will create the basic structure for our new project in which the main feature is consuming the Twitter stream. Let's do that.

Project use case

Before we start to code, we need to track the application requirements. The application is message-driven, we will use a broker to provide the messaging infrastructure. We choose the RabbitMQ broker because it provides reliability, high availability, and clustering options. Also, the RabbitMQ is a popular choice for the modern message-driven applications.

The software is powered by the Pivotal company, the same company which maintains Spring Framework. There is a huge community which supports the project. 

We will have three projects. These three projects will collect the Twitter stream and send it to a recipient to show Tweets in a formatted way to the end user.

The first one, which will be created in this chapter, will be responsible...