Asynchronous Communication
In the previous chapter, we illustrated how services can communicate with each other using a synchronous request-response model. There are other communication models that provide various benefits to the application developer, such as asynchronous communication, which we are going to cover in this chapter.
In this chapter, you are going to learn the basics of asynchronous communication and some common techniques for using it, as well as some benefits and challenges it brings to microservice developers. We will cover a popular piece of asynchronous communication software, Apache Kafka, and illustrate how to use it for establishing communication between our microservices.
In this chapter, we are going to cover the following topics:
- Asynchronous communication basics
- Using Apache Kafka for messaging
- Asynchronous communication best practices
Let’s proceed to the basics of asynchronous communication.
