Being a web developer, I always had confusion about microservices. What the hack microservice is? Is it some kind of fancy word for a concept we already know or is it entirely different alien concept?

Let’s understand it in plain english. Microservice is a concept of building application with more than one independent components called services.

For example, Facebook might have small services for features like profile data, feed data, advertisement, database, caching etc. it means, Facebook might have a separate independent application itself to deliver profile information whenever asked by anyone authorised entity (different service). This completely separate independent application has its own life cycle. We call it a service or micro service. and architecture having lots of such services communicating to each other to serve a set of user is called microservice architecture.

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