What are microservices and why to use them

BY: NEISHA SANTIAGO

 To understand Microservices, we need to know first: What is a service?

In IT a service is a piece of software that provides the functionality to another piece of software within your system. A service can provide functionality to different types of software like web sites, mobile apps, or desktop apps. For example, when you place an order on a web site, the website communicates instantly to service, and the service carries out the creation of the updates, deletion an retrieval of what is from the database, so in this way, the service provides the functionality to the website application.

 

Ok, so now that we understand what a service is, what are Microservices exactly?

Microservices are an innovate service-oriented architecture, including a new set of additional design principles that teach you how to size a service rightly. Offering smaller services providing more efficiency scalable and more flexible with a better performance compared with the monolithic services that offer a massive scale of services becoming inefficient. Every microservice is a different unit inside the software development design, with its codebase, infrastructure, and database.

In a business look, microservices have become more attractive for having more agility and move toward DevOps and a testing framework. Microservices can implement software solutions that continually delivered in less time, different from apps built with a monolithic architecture that takes months or even years to perform.

Microservices has his own data storage providing us the freedom to independently make changes that can be deployable without affecting other microservices. Also, they are absolute centralized tooling for management.

What makes a service microservice?

For a service to be a microservice, the service needs to have 6 Principles.

  1. High Cohesive
  • Single focus
  • Inputs and outputs must be coherent.
  • Single responsibility

The class can only change for one reason allowing us to establish the size of the service because we don’t want to create a monolithic service accidentally.

  1. Independent
  • Microservices are independently and deployable.

Any microservice shouldn’t be subject to change because of an external system interacts with one of them.

  1. Business Domain Centric
  • Represents the Business function or Business Domain.

The programmers can view the domain design as an essential part of the software project.

  1. Resilience
  • Fail fast, recover fast

You don’t have to worry when fault isolation occurs because when one microservice is down, the others still in functionality.

  1. Visible

In terms of system status, you need to know your system’s health.

For example:

  • Logs
  • Current activity
  • Failures in real-time
  1. Automation
  • Tools for testing
  • Tools for deployment

Automating testing reduces the amount of time required for testing and the time integration between service and client.

There are many ways Microservices improve a company

  • Having automated test tools that test integration between services.
  • Reliability at the moment of a system brakes.
  • Easier to build and maintain apps.
  • Organizing around business capabilities.
  • Increasing productivity and speed.
  • Giving freedom to developers of work independently.
  • Adapting different technologies for specific services.
  • Mixing technologies stack.

Because the software market is very competitive nowadays, microservices offers a system that exceeds your expectations.

With Microservices, it’s easier to develop, test, and support. If you want to know more about Microservices,  we will be happy to assist you! Click here to contact us.