What are Microservices? The Pros, Cons, and how they work

Microservices are also known by the name microservice architecture. We can say that a microservice is a piece of self-contained code that helps in executing a business function. Microservices should be taken after consideration and analysis. They should neither be ignored nor taken immediately into effect. Users must know the pros and cons before embracing this modern architecture.

Disintegrating the Monolith

Let’s take an example of a monolith structure. The monolith structure has a good design contrary to a microservice, and the user interfaces, as well as the shipping department, are using the same API that helps in storing information in a single database.

In an attempt to solve this problem, you will have to alter the Ordering functions and establish the entire API. The process is lengthy and might affect other functionalities related to your business. Furthermore, you may have to apply functional as well as unit tests for the verification. Even, the tests will not guarantee, and there might be further risks.

What will happen if we apply microservices instead of the monolithic structure? Let’s gain insight by covering the pros and cons.

Pros

There are multiple APIs or microservices available. The ordering bug can be easily fixed by deploying and adjusting the Ordering API. Even, smaller sets are available to test; these sets easily help in their deployment without affecting other or existing functionalities.

In the case, your Ordering API suffers a drawback, then, it will not be gonna affect other services. Still, users can register, browse categories or products, and enjoy shopping.

The migration to microservices only has an effect on the level of granularity. There is another solution to this need or problem; one can approach coarse-grained options or services and disintegrate into finer as per their requirements. While splitting monolithic API into the microservices, the condition of duplicity and complexity to individual service may form. What is the solution to this problem? Here is the solution. You will have to create a microservice specifically for catching such that existing microservices can easily use or apply it. The complicated catching logic easily gets removed due to smaller structures, providing better manageability. Check out the following points to gain better insight.

  • Microservices provide versatile solutions; multiple languages and technologies can be used.

  • Easy Integration and Scaling through third-party applications.

  • Microservices are deployed easily due to their compatibility with the flexible methodologies.

  • Microservice-based solutions offer fast and constant improvements related to each function.

  • Easy and simple to maintain. Users can implement the suggested changes in a limited period of time, without affecting others.

  • It has become easy for developers to take out the advantage from third parties; you need not work from scratch for reinventing the wheel.

  • The modular projects evolve more organically. Now, it has become easy to organize multiple developments, using multiple resources in a specified period of time.

Have a look at cons to get a better knowledge of it.

Cons

  • Global testing is difficult due to component distribution.

  • The management of microservices has become requisite, as the presence of microservices in a solution can lead to difficulty in the management and integration process.

  • Experienced and competent developers are required to handle microservices.

  • It can be a little expensive due to licensing from third-party apps.

Final Words:

As per the above-given comparison, the pros outshine the cons. There are multiple problems that require microservice solutions. There is another way to evaluate which solution will suit you the best and which do not… all depending on users requirements to meet objectives. Therefore, APIs can be used to get the desired result for specific situations.

 

 

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