Interservice communication is possible with synchronous or asynchronous communication, which are styles of collaboration. Microservices should have asynchronous APIs. The API gateway is a proxy server that allows various clients to interact with APIs. Azure API Management, as an API gateway, provides plenty of features that we can use to manage and host various RESTful APIs. There are various patterns that help us communicate with microservices.
With the use of Azure Bus Service, we can easily manage and play with interservice communication, using the Azure Bus Service message queue. (Services can easily send or receive messages between themselves using this.) Eventual consistency is all about scalable systems with high scalability, and it can be proven by the CAP theorem.
In the next chapter, we will discuss various testing strategies, so that we can test our applications...