Soon applications will be only built on microservices. outdated ways of application design will get forgotten. Future of applications is out there and you are already using it!

How Advanced is Microservice Architecture Vs Traditional Monolithic Architecture?

You must be familiar with the old ways of architecture design. Application are built on a single/major programming language.These applications are deployed on a single server & share a single database.

To understand Monolithic architecture closely, lets have a quick look over Monolithic Architecture, and why Microservices are far more better then Monolithic architecture.

What is Monolithic Architecture?

Monolithic architecture is based upon sedimented layers and redundant logical programs. Thousands of lines of codes interpret these rigid logic. The code is closely interrelated to its layers. Each class may depend upon function of some variable from another class.

Consider example of Monolothic architecture as assembly line which works in a flow and each of the part of that assembly is dependent upon function of previous part.

Monolithic architecture is mainly composed of these layers:

  1. Authorization Layer: Grants access to users allowed.
  2. Presentation Layer: Provides the interface for user interaction.
  3. Business Logic: Logical blocks that execute business logic.
  4. Database Layer: Handles and stores all the data.
  5. Application Integration: Handles integrated parts of application.
  6. Notification Module: Provides notification, when a action is formed.

Now if you look closely, presentation layer will serve interface only to those users who have passed the credentials test from Authorization layer. The issue doesn’t arise much in start after application is built. When we are constantly trying to update this application, now size of application and line of code is getting larger and more complex.

This was the Era of Monolithic Architecture. But, Thanks to our advancement and continuous improvements. We are out of that old age now. The reason why I refer to monolithic architecture as old age is due to a number of reason some of them are:

Disadvantages of Monolithic Architecture:

  1. Very Expensive Hardware was required to run these application on.
  2. Memory storage was another issue. In these sytsmes, Networking is also required.
  3. Complex Hardware debugs were faced by engineers, When applications encountered hardware failure..
  4. A Monolithic Architecture i s not scalable. Thus, these applications where really limited in terms of usage limit , life, productivity factors etc.
  5. This type of architecture had Major Programmer. He understood whole code. He was considered the main asset here.
  6. Less Reliable System: Consider this, If any bug arises with memory module, entire application will face disruption or impact its performance.
  7. Maintenance Issues can cause huge trouble sometimes in Monolithic Architecture. If application becomes large and complex, changes are tough now. Programmers who are trying to change single piece of code can forget, a single terminator in thousands of lines of code. This can be of much challenge to solve.

Microservices architecture was developed to solve these problems. Today, it is one of the most fast growing and highly adaptive architecture globally. But why is that?

What are Microservices?

Microservices are separate units or parts of an application, Which are deployed individually on servers. These units or blocks have their own database and set of resources, required for them to perform their function.

Microservices have transformed the way applications were build in past. Now, we don’t have to limit our selves to work on a single programming language in order to develop an application. Instead Microservices allowed us to focus on building units of the larger application in chunks having higher capacity to use multiple programming languages and resources.

Programmers coming from different backgrounds, and using advanced programming languages could now develop different parts of a single application.This help us achieve a single objective with collective efforts.

Microservices have saved a lot of space, time and resource usage. Dividing and categorizing has always been a major approach to growth. Rather then building bulk of stuff we start working with smaller and more simpler parts.

What is Microservices Based Architecture?

Microservices based architecture is based upon composition of Event-driven architecture and Service-Oriented Architecture (SOA) principles.

In this type of architecture, small and scalable parts of applications are built.These parts communicate with each other over API’s and form a single unit performing a single goal.

API’s play the most important part for communication of microservices. with out proper API built to achieve communication task, Some microservices can not function.

What is API’s in Microservices?

Access Programming Interface:

API’s are access providers which allows the application to access resources or services which are host based. for example while your using Facebook App on your Phone and you want to stream a live video Facebook applications communicates with API’s to get access to you Phone camera in order to execute recording and live streaming functions.

To get a better understanding of what API is? and How API’s work? watch the video below.

Advantages of Microservices:

  • Scalability of Applications: Microservices based applications are highly scalable.
  • Seamless Upgrading :While any update, applications doesn’t has to face downtime of service or client waiting.
  • Independence of Services:If development team is changing a single piece of application or service , this won’t have impact on performance of entire application as these units can work independently.
  • Structured Approach: Microservices introduced the concept of block structure in which each block, although working to achieve same goal, is attached to a system. But it can be work or be built on entirely different environment.
  • Market Benefits: Enterprises can now create multiple teams which can work on multiple microservices of an application rather then investing on a single team to be able to handle and maintain a huge application. Hence boost productivity, cost effectiveness and resource management.

Major Tech giants and Enterprises are adopting to it already. Netflix is using microservice based architecture today to boost it’s scalability for the large user base it has. Highly scalable applications are catching more audience attention and much better user experience then traditionally built ones. Online shopping websites are also getting integrated. They are trying different features and updating every week with microservices.

Tell us what you think about microservices against traditional monolithic architecture? Which one do you support?