Microservices Development & Architecture

As applications get more complex, they can get unruly. A wise alternative is to consider a Microservices software development approach.

By structuring applications as a collection of loosely coupled services that work together you create easy to plug & play block-style applications rather than one complex application. This “Microservices” format opens the door to a more natural way of expanding and scaling as your business needs change.

Create A Network Of Easy To Scale Blocks So Your Application Can Grow Along With Your Business

Microservices architecture module illustration

Benefits Of Microservices:

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Quickly Adapt To Business Changes

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Improved Fault Isolation

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Smaller & More Agile Development Teams

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Easier To Upgrade

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What Are Microservices?

What Are Microservices And How Will They Impact Development?

What Is Microservice Development & Architecture?

Microservice development and architecture is a more straightforward way of building applications by breaking them down into modules and then combining them into a suite of services, each independently deployed and organized around business capabilities and needs. By organizing applications into specific areas of service, you can assign small development teams to work independently on particular tasks.

What Are The Benefits Of Microservices Architecture?

Building on Agile methodology, microservices architecture improves agility from the beginning of development by allowing you to use small teams. Once developed, you can deploy and test each application entirely independently of your other components, no matter if you build them now or in the future. And to manage everything, containers, a proven concept, can be used to link everything together.

Why Does Microservices Go Well With DevOps?

Microservices initially emerged from DevOps and Agile practices. Together they build on the agility of smaller applications built by cross-functional full-stack teams cooperatively focused on continuous delivery, deployment, testing, and monitoring. Add Microservices to DevOps, and you get the benefit of letting development teams use the best tools and languages for the specific application, independent of other development teams.

Software systems can be very complex and difficult and expensive to develop. Microservices architecture is about identifying the various parts of a software system, converting them, and expanding new requirements into autonomous modules that can be deployed and modified independently of the rest of the system.

Key Microservices Best Practices

Consider Domain Driven Design – Domain Driven design, in its simplest form is understanding what the software is all about in relation to the industry. It is a methodology for the development of breaking complex systems into focused modules that relate to task and activities so you can map events and data effectively. It is important to have clear communication between business experts that understand the process and experts that can implement the solution (Architects/Developers). This step allows you to break the complex application into your modules.

Database Sharing – Yes or No – Database sharing is an important decision and should be determined next. If you decide to share the database you are assuring a strong coupling of the Microservices. However, if you do this you are in a way defeating the purpose of going to Microservices and it’s ability to easily decouple from the mass. This is something to discuss in detail and the idea of private tables or separate databases should be considered.

Make Sure Your Front End Is Also A Microservice – Basically, if you are breaking up the backend, you should do the same with the front end. Micofrontends maintain the modularity when needed in the future and will be rewarded.

Agile Delivery – It is important to deploy Microservices independently. Whether you are using a CI/CD (Continuous Integration/Continuous Delivery), DevOps, or Agile development methodology, they are all fast and are based in agility.

Tracing and Observability Is Key – Monitoring one single software system, even if large, is much easier than keeping track of a multitude of modules. For this reason it is important to consider how you will log and trace latency in the system and identify the culprit. For these tasks there are resources available in the market that should be vetted prior to beginning so you are aware of all the costs associated with going to Microservices.

Use A Proven Language – There are many frameworks, languages, and tools to implement Microservices, but staying with Java, C++, Node.js, .NET (&ASP.NET), Golang (Go), and Python may be your best bet. For example, with Java there are several frameworks that can be used to develop your Microservices Architecture, to include Spring Boot, Restlet, & Spark. .NET is another framework that can make the transition easier.

No matter which language you decide to use, the future of Microservices is leading us closer to server less architecture and greater cost savings and reliability. With more complexity required from your applications it is crucial to set your system up so it can be managed effectively without taking down the entire system when an issue arises.

Where Should You Start?

Identify Your Business' Capabilities and Corresponding Services

Every business has a set of capabilities that it provides to its customer. Each of these capabilities aligns with a particular service that corresponds with a specific skillset. (For example, If you deal with inventory, you will need an inventory management tool.) Once the services have been identified, assign a sponsor that will take responsibility.

Identify Your Development Teams For Each Module - Internal Or Outsourced

Once the services have been identified, you need a capable team for each module that can evaluate the service and determine the best technologies suited for the task. With so many options, it is crucial to balance new and proven with likely availability of support and cost of future resources to maintain.

Getting Started With Microservices And Loosely Coupled Services

Microservices are one way that Intertech can help you move forward, and the more you learn about Microservice Development and architecture, the more interested you may become. An excellent place to start if you prefer reading more about it before contacting us is this article: The What, Why, and How of a Microservices Architecture.

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