Use Asynchronous message-based communication when

you have multiple microservices are required to interact

each other without any dependency.

▪ Asynchronous message-based communication is works with

events.

▪ Events can place the communication between microservices:

Event-driven communication.

▪ If any changes happens in microservices, it is propagating

changes across multiple microservices as an event.

▪ Events consumed by subscriber microservices.

▪ Event-driven communication bring us Eventual consistency

https://medium.com/design-microservices-architecture-with-patterns/microservices-asynchronous-message-based-communication-6643bee06123