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Building Microservices Architecture Using Spring Boot

By Unni MohanJuly 26, 2022, 12:59 p.m. Application development company
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Building Microservices Architecture Using Spring Boot

In the software development world, the new normal is the microservices architecture. In a survey conducted in 2021, over 85% of the respondents from large organizations having more than 5,000 employees stated that they were currently using microservices. This is because building small, self-contained, and ready-to-run applications offer great flexibility and increased resilience to applications. Many purpose-built features of Spring Boot make it not only easy to build but also run microservices.

The microservices architecture is a modern approach to application software development wherein code is delivered in small and manageable pieces that are independent of each other. The benefits offered by this architecture include easier maintenance, greater fault tolerance, improved productivity, and better business alignment, among others. 

With Spring Boot, you can start building microservices in a small way and iterate fast. Besides, the Spring Boot platform helps to mitigate the challenges posed by microservices’ distributed nature. It enables service discovery, circuit-breaking, load-balancing, distributed tracing, and monitoring.

Microservices Architecture Using Spring Boot

As the name implies, microservices are a collection of small services. They are self-contained and ready-to-run applications. The monolithic architecture, which combines many components into a single application, poses many disadvantages. For instance, a problem with one of the modules can make the entire application unusable until the problem is rectified. It is also very difficult to maintain a big monolithic application.

Microservices, on the other hand, break down large applications into different smaller parts. This makes it easy to identify a problem, whenever it occurs. Furthermore, a problem with one of the components will not affect the performance of the whole application. The microservices concept is very simple and it involves building small independent applications for each service.

Read our blog “Top 5 Microservices Trends to Take Note of in 2022”.

A screenshot of a cell phone

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The key aspects related to the microservices architecture shown above are:

  • Each microservice works by using its own database.
  • Client APIs cannot directly access the services. They can only interact and communicate through the API gateway.
  • Each service is registered with the discovery server that has information about all the microservices created for the system.
  • The configuration server consists of all the information related to microservices configuration, such as hostname, URL, etc.

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Download and read our ebook “Choose the best microservices vendor and trim the costs”.

The Java framework Spring Boot can be used for creating microservices. The open-source framework enables the development of stand-alone and production-ready spring applications. Besides, the Spring Boot framework enables the application's bootstrapping process. Furthermore, it provides default annotations and enables code configuration to help developers complete projects faster.

Moreover, the framework follows the approach of "Opinionated Defaults Configuration," which eliminates the need to write lots of boilerplate code. This enables developers to improve unit tests, integration tests, and the development process itself. In addition, Spring Boot contributes to improving the productivity of the project.

Finally, Spring Boot enables the creation of cleaner and easier service-oriented architectures by hiding the complexities involved in the building and configuration of services operating in Java servlet containers. Besides, Spring Boot helps create executable JAR files for deployment in cloud containers.

How to Design Microservices Architecture with Spring Boot?

The step-by-step process of designing a microservices architecture using Spring Boot is as follows:

  1. Create a root project with a web dependency for writing code and adding modules to the core module such as discovery and configuration servers. After creating the core module, craft the discovery and configuration server modules with the help of the Spring Initializr.
  2. The next step is to set up the discovery server.
  3.  Now, create the configuration server by incorporating the desired dependencies.
  4. Core service configuration is the next step. A database is required for core services. The username and password for the database file will be located on the configuration server. After creating all projects, open the IntelliJ Idea or other IDE and the root project to craft the new modules for all the services.
  5. Having created a Eureka service using the spring-boot initializer and including the same in our root project, setting up service discovery with Eureka servers is the next step. All services are registered on the discovery server after they go live. This makes it easy to find a service from the registry. Once a service is registered with Eureka, the server will provide the metadata such as port, host, and health indication parameters to the client. Moreover, an annotation should be added to the application main class to enable the registration of the services with the Eureka server. Furthermore, the properties of the application should also be defined.
  6. The configuration server acts as the centralized repository for all servers. It fetches data from external centralized locations.
  7. The next step is to configure the core service that contains the business module.
  8. The configuration of the Eureka server, configuration server, and core service complete the requirements for building microservices with Spring Boot and the application can be run.
  9. Finally, feign and hystrix can be used for the management of the fallback of services.

The basic concept behind creating microservices using Spring Boot has been discussed in this post. Microservices offer many benefits for large systems. Developers can independently work on different modules without impacting the performance of the entire application.

How SayOne can help

At Sayone, we design and implement microservices systems that do not have complex architectural layers, and this enables the services to deliver exceptionally fast performance. Moreover, we provide services that are significantly decoupled, allowing you to launch independent services and not end up with the usual inter-dependent microservices that work more or less like a monolith. 

We design the microservices keeping in mind the margin required to allow for the transitioning into the new system of your organization’s legacy architecture as well as expanding into the cloud system. Our microservices comprise lightweight code and we provide competitive pricing options for our clients.

Our microservices are built according to the latest international security guidelines that ensure the complete safety of all the data. We also ensure that we deliver the services within stipulated deadlines and we always assure a quick turnaround time for our clients. Equipped with the best infrastructure and the latest tools and technologies, our expert developers will provide you with the best microservices that are easily scalable, enabling a good ROI in the shortest period of time.

Looking for the best microservices vendor? Call us today!

 

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