Messaging is typically asynchronous in nature and is used extensively for inter-service communication. Services talk to one another by exchanging standardized messages over messaging channels. There are message brokers, hubs, and queues (Apache Kafka, RabbitMQ, and so on) in the market. This pattern has the following benefits:

• Messaging enables loose and light coupling between participating and contributing services. The dependency hell gets eliminated here.
• Message brokers typically buffer messages until the subscriber/consumer is able to receive and process them. This intermediary-based message storage enhances the message availability. This pattern supports a variety of communication patterns such as fire and forgets, polling, publish, and subscribe.

Asynchronous communication through messaging middleware solutions turns out to be the messiah for the distributed computing era.