Microservices Introduction

As you see in the above image, Microservices are an architectural approach to building applications where each core function, or service, is built and deployed independently.

It is essential to educate yourself about microservices if you are new to the software industry or are currently returning after a break. Microservices have completely revolutionized the industry, and many enterprise-level systems are currently developed utilizing them.

We have utilized monolithic applications in the past and are still using them today. In a monolithic application, just one executable file is present on a single system. In a broader sense, let’s say that our program consists of three parts: a database, business logic, and user interface. In monolithic applications, all three of these components are combined into a single package before the application is run. When we upgrade to a newer version, this architecture will still have some major problems.

If a change is to be made on one of the components be it large or small, the entire application must be repackaged and all the testing should be done including Regression testing to make sure that the application is running without any major problem.

Have to test the whole application to ensure that the application is working without any significant issues whenever a change is to be made to any component, no matter how big or minor.

The deployment will be challenging as well since we must ensure that all dependencies are updated and traffic is directed to the new location before launching the updated version of our application. The installation procedure will take a lot of time and may cause the engineers problems.

At the same time there are lots of advantages on Monolithic Architecture:

Although this architecture has several benefits, it also has some significant drawbacks. Because of this, software engineers want a more modern strategy that would simplify their work. The role of microservices in this is crucial.

Microservices is an approach for developing a single application as a suite of small services, each running its own process and communicating with lightweight mechanisms, often an HTTP resource API.

Simply put, we create a large application from a collection of smaller, independent services that communicate with one another over the internet but are not tightly coupled, allowing for the existence of one service without the other and the use of various databases and programming languages by each service. Check out the simplified version in the diagram below.

Advantages of Microservices

2. Better resiliency

3. Increased scalability

4. Continuous integration/continuous delivery (CI/CD)

5. Optimize business functionality

Although there are still some drawbacks, the list of benefits is growing greater than the list of drawbacks due to the speed at which business is conducted today and the emergence of new technologies that make microservices administration even simpler.

Microservices simplify a lot of the development process, but in other cases they might actually make things more complicated.

Disadvantages of Microservices

2. Interface control is even more critical

3. Up-front costs may be higher with microservices

Microservices architecture undoubtedly has a number of benefits and drawbacks to take into account, but it’s also crucial to include in your organization’s culture and goals.

Businesses with organizational cultures comfortable with dividing work among small development teams are better suited for microservices architecture. Additionally, microservices are most effective for businesses with big or diversified user bases that need to develop quickly.

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