In the last articles, we had seen how to communicate synchronously in microservices architecture. So in this section, we will focus on asynchronous communications in microservices architecture.
Synchronous communication is good if your communication is only between a few microservices. But when it comes to several microservices need to call each other and wait some long operations until finished, then we should use async communication. Otherwise that dependency and coupling of microservices will create bottleneck and create serious problems of the architecture.