Microservices and why it came into picture!
Published 08 September 2022
**Introduction -** Microservices architecture is an approach to developing systems in which a single application is composed of many loosely coupled and independently deployable smaller services. These small services communicate through APIs, which ensure the security of the application. If the developer makes any updates in one small group, it won’t change the function of the whole application. Many enterprises have adopted the microservices architecture. It has been an amazing, cost-effective method. Microservices growth started between 2011-2014, replacing the SOA (Service-Oriented Architecture) and monolithic architecture. The global market value of microservices was $2,073 million in 2018 and is projected to reach $8,073 million by 2026, registering a CAGR of 18.6% from 2019 to 2026. **Microservices vs Monolithic -** Microservices made their way into the software development market some years ago, but they have made a superb impact. Microservices offer many attractive features over monoliths, as in microservices, every service has: Its own CPU A dedicated database Can adapt to different technology stacks. And can be maintained by a different team, so that they are easily manageable and overcomes the overhead of deploying the full code if there's a change in one amongst the services. Whereas in Monolithic Architecture, every unit is tightly coupled & interdependent. So microservices provide great flexibility in implementation while also implementing huge scalability. **Pros of microservices:** * Better scalability * Easy deployment * Fast defect detection * Different technology stacks can be implemented easily. * increased scope for experiments in technology. **Cons of microservices:** * We need more collaboration * More complexity * Need more architecture to set for coding effectively * causes difficulty in debugging and testing * It does not have scope for small applications. **Who Is Using Microservices?** Microservices enable development, scaling, and improvement of software service quality. It has plenty of advantages like accuracy, scalability, easy deployment, and the ability to sustain an application’s efficiency if something goes wrong. In this way, if something goes down, it will affect the features of that one group, instead of affecting the whole application. Let’s have a look at the industries using microservices. The healthcare industry has adopted microservices due to their fast deployment, quicker technology adoption, and increased productivity. Microservices have made a strong foothold in the healthcare industry, and their market is expected to grow from $130 million to $519 million by 2025. Microservices seize three key features for finance services: terrific security, faster delivery of new functionalities, and easily manageable API layer. Government organizations can gain a lot from microservices' increased security and scalability, as they can build functionality to achieve their business goals. Because of its great scalability and faster error handling, retail companies like Bestbuy.com, Amazon, eBay, Coca-Cola, and so many more have adopted microservices. Netflix was one of the earliest to evolve in microservices in 2009, and now it handles over 2 billion edge requests in a day. Microservices have given speed, scalability, and availability. **Conclusion -** Microservices came into the light 10 years ago; since then they have been introduced and we have seen their popularity rise in every industry, and now we are seeing them applied on the front end as well. The future of microservices is visionary and can be unfolded in many different and exciting ways; it's great scalability, faster error detection ability, easy deployability, and different tech stack implementation will help developers develop more expandable services that can devour a huge amount of real-time event data and run them by combining all those loosely coupled services as a single application with an event-driven architecture. As for the future market for microservices, it is growing amazingly. According to Market Research Future, it is growing with a CAGR of 17 percent and will reach $33 billion by 2023.