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Spring 5.0 By Example

You're reading from   Spring 5.0 By Example Grasp the fundamentals of Spring 5.0 to build modern, robust, and scalable Java applications

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Product type Paperback
Published in Feb 2018
Publisher Packt
ISBN-13 9781788624398
Length 356 pages
Edition 1st Edition
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Author (1):
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Claudio Eduardo de Oliveira Claudio Eduardo de Oliveira
Author Profile Icon Claudio Eduardo de Oliveira
Claudio Eduardo de Oliveira
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Table of Contents (11) Chapters Close

Preface 1. Journey to the Spring World FREE CHAPTER 2. Starting in the Spring World – the CMS Application 3. Persistence with Spring Data and Reactive Fashion 4. Kotlin Basics and Spring Data Redis 5. Reactive Web Clients 6. Playing with Server-Sent Events 7. Airline Ticket System 8. Circuit Breakers and Security 9. Putting It All Together 10. Other Books You May Enjoy

Enabling Twitter in our application


In this section, we will enable the use of Twitter APIs on our Twitter Gathering application. This application should get Tweets based on the query specified by the user. This query was registered on the previous microservice that we created in the previous chapter.

When the user calls the API to register TrackedHashTag, the microservice will store the TrackedHashTag on the Redis database and send the message through the RabbitMQ. Then, this project will start to gather Tweets based on that. This is the data flow. In the next chapter, we will do a reactive stream and dispatch Tweets through our Reactive API. It will be amazing.

However, for now, we need to configure the Twitter credentials; we will do that using Spring beans – let's implement it.

Producing Twitter credentials

We will use the @Configuration class to provide our Twitter configuration objects. The @Configuration class is really good to provide infrastructure beans, if we do not have starter projects...

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