A microservices architecture for application development in the cloud is an architectural approach that builds a software application as a collection of small (“micro”), loosely coupled services. Each service in the architecture represents a specific business capability or functionality, such as adding an inventory item to a database or checking the credit on new customers. They typically operate as a separate process, communicating with other services through APIs or lightweight protocols.
Microservices emerged from services-oriented architecture and the need to build better applications. It’s the most favored approach for building net-new applications for a few good reasons. I like using microservice architecture because it offers loose coupling and isolation.