Core concepts – state, communication, and dependencies 

Each microservice implements a single capability such as shipping, and deducting from the inventory. However, to deliver an end user, a service request such as business capability, user need, or user-specific requests; it may or may not be a set of business capabilities. For example, a person who wants to buy the product is a single service request from the user's point of view. However, multiple requests are involved here, such as add to cart microservice, payment microservice, shipping microservice.  Hence, to deliver, microservices need to collaborate among each other. In this section, we will look at core concepts of microservice collaboration such as service state, communication styles, and more. Choosing the correct communication style helps us to design a loosely coupled architecture that ensures that each microservice has clear boundaries and it stays inside its bounded context. In this section, we will look at some core concepts...