5 Free Reactive Microservice Courses for Java Programmers in 2021 - [Spring Boot + ReactiveJ/RxJava]

Hello guys, if you want to learn Microservice architecture and looking for free Microservice resources like free online courses then you have come to the right place. Earlier, I have shared the best Microservice courses for Java programmers to build Microservice using Java and the Spring framework, and today, I am going to share some free courses to learn Microservice in Java using Spring Boot and the Spring Cloud framework. If you don't know, Microservices is a modern architecture that goes along nicely with cloud computing and makes deployment, scaling, and even development easier. 

It provides a new way to deploy your Java application where a monolithic Java application is broken down into multiple, small, independent Java application which can be developed, deployed, and tested independently. 

There are several benefits of following Microservice architecture like, multiple developers can work on multiple processes simultaneously. The build and release process becomes easier as you are only deploying things that you are changing and so on.

Another great thing about Microservice is that it goes hand-in-hand with the cloud. They are easier to scale and often deployed using containers like Docker which makes the deployment easier which can also be automated using Kubernetes for further scaling. With increased push to moving towards Cloud-based Architecture, Microservice is getting a lot of traction and becoming popular every passing day and it has now become an essential skill for Java developers.

When it comes to developing Microservice-based applications in Java, the Spring framework offers the best solution to create, maintain, and deploy enterprise-scale Microservices. Microservices allows very large systems to be built up, from a number of small collaborating components.

If you look closely it follows the Spring model of component-based development. Microservice is built using a small process that collaborates to do what you indent do. Spring also does the same where the application is made of small, collaborating components or Java classes, or Spring beans. This loosely coupled design offers many benefits which powered modern software development.

By the way, If you are keen on Microservice development using Spring Boto and Spring Cloud then I highly recommend Master Microservices with Spring Boot and Spring Cloud course on Udemy. It's not free but quite affordable and you can buy in just $10 on Udemy sales.  





5 Free Spring Boot and Reactive Microservices Courses for Java Developers in 2021

Without wasting any more of your time, here is a list of free online courses you can join to learn Microservice architecture and build them using Spring Boot, Spring Cloud, and RxJava framework. These free courses have been created by experts like Redhat training, Google Cloud Training and trusted by thousands of developers. 

They are also offered by popular online websites like Udemy and Coursera and ideal for Java developers who want to learn about Microservices. They are equally useful for both beginners and developers with some Microservice knowledge and experience.


1. Master Spring Microservices with Spring Boot & Spring Cloud!

This is one of the best free courses to learn Microservice with Spring Boot and Spring Cloud on Udemy. This course is created by Karthikeyan T, author of a full-stack Java course that I have recommended in the past. In this free Microservice course you will learn about the basics of Microservice architecture.

Once you understand the basics you will develop a mini Microservice App using Spring Boot and Spring cloud where you will create several services like Pricing Service, Inventory Service, Currency Conversion Service to build a Microservice architecture. This course is great to gain some hands-on experience in developing Microservices for FREE.

If you already know Spring boot and a little bit of Spring cloud then you will learn quickly, but even if you don't, you will still gain a lot of useful information for free of cost. I highly recommend this course to anyone who wants to learn Microservice in Java with Spring.

5 Free Microservice Courses for Java Programmers to Learn Online - Best of Lot



2. Develop a reactive Java microservice with ReactiveJ

This is another free Udemy course to learn Microservice in Java. The difference between the previous course and this course is that it uses ReactiveJ and RxJava to build Reactive Microservice in Java instead of Spring Boot and Spring Cloud. 

In this course, you will learn the main concepts of reactive programming and we're going to develop a reactive microservice with Java, ReactiveJ, and RxJava2. This course is suitable for beginners.

Here are the main things you will learn in this course

  •  Reactive programming
  •  JSR 340 and servlets 3.1 specification
  •  advantages of reactive programming
  •  non-blocking embedded Jetty
  •  ReactiveJ non-blocking and asynchronous library
  •  develop of asynchronous and blocking app with ReactiveJ
  • develop an asynchronous and nonblocking app with ReactiveJ and RxJava2

If you don't know Spring Boot and Spring Cloud is not the only way to develop Micrserovde you also have other options like RxJava, Quarkus, MicroNaut, and much more. This free course is great to explore another option for building Microservice in Java.

Free Online Course to learn Microservices with ReactiveJ



3. Developing Cloud-Native Apps w/ Microservices Architectures

This is another free Microservice course from Udemy which can be used to find the proper frameworks and tools to build your microservices architecture in Java. This course is created by Red Hat Inc, one of the patrons of JBoss and creator of RedHat Linux.

In this official Red Hat® training course, Burr Sutter, the Chief Developer Advocate for Red Hat, will give you a deep dive into the microservices architecture.

here are key skills you will learn in this course:

1. basics of executing a microservices architecture.

2. Learn how to deploy a variety of microservices frameworks through a DevOps pipeline.

This course is designed for programmers and developers who want to combine different frameworks and tools to build a Microservice architecture for their organization. It's also great for anyone seeking an understanding of OpenShift and Kubernetes tool and platform.

free Udemy course to learn Microservices and Cloud



4. Software Design and Microservices

This is a more fundamental course than whatever we have seen so far. If you are a complete beginner to Microservice then I suggest you to should start with this free course. This course is great to learn about how to design a highly available, fault-tolerant, secure, and scalable distributed system.

In this short free course, you will learn how to build software that will be scalable, more secure, and high availability. The instructor discusses system design pattern by using an example of a parking lot system, one of the popular system design question which is asked in Tier-A software companies.

This course also includes OS concepts like concurrency, race condition, and locking which will be used to design distributed systems. So, it's not just useful to learn Microservices but also other key design elements which are crucial to design a robust, secure, and scalable production system.


free Spring Boot Course from Udemy



5. Building Scalable Java Microservices with Spring Boot and Spring Cloud

This is another free course to learn Microservices for Java developers with Spring Boot and Spring Cloud. The best thing about this course is that it is available in Coursera and it offered by Google Cloud, so you will be learning from best in the Industry.

In this course, you will learn how to build Java applications using Spring Boot and Spring Cloud on Google Cloud Platform. You'll use Cloud Runtime Configuration and Spring Cloud Config to manage your application's configuration. You'll send and receive messages with Cloud Pub/Sub and Spring Integration.

You'll also use Cloud SQL as a managed relational database for your Java applications, and learn how to migrate to Cloud Spanner, which is Google Cloud's globally distributed strongly consistent database service. You'll also learn about tracing and debugging your Spring applications with Stackdriver.

To get the most out of this course, you should be familiar with the Java programming language and building Java applications using tools like Maven or Gradle. You should also have general knowledge of Google Cloud Platform

free Microservice with Spring Boot course from Coursera


That's all about the free Microservice courses for Java and Spring developers. If you want to learn more about Microservice architecture or want to build a Microservice application using Spring Boot, Spring Cloud, and RxJava then you can join these free Udemy and Coursera courses to learn these in-demand and useful skills. 

The best thing about learning Microservice architecture and development is that both Microservice and Cloud go hand-in-hands and due to increased push on cloud-native development Microservice is also becoming popular every passing day. Now is the best time to start learning Microservice and these free online courses are best to start with.


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Thanks for reading this article so far. If you find these free Microservice courses from Udemy and Coursera useful then please share them with your friends and colleagues. If you have any questions, feedback, or any other fee course to add to this list, feel free to suggest.

P. S. - If you want to learn Microservice development using Spring Boto and Spring Cloud then I highly recommend you check out Ranga's Master Microservices with Spring Boot and Spring Cloud course on Udemy. It's not free but quite affordable and you can buy in just $10 on Udemy sales.  More than 90K Java programmers have already benefitted from it. 

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