Summary
In this chapter, we covered the basics of synchronous communication and learned how to make microservices communicate with each other using the Protocol Buffers format. We illustrated how to define our service APIs using the Protocol Buffers schema language and generate code that can be reused in microservice applications written in Go and other languages.
The knowledge you gained in this chapter should help you write and maintain the existing services using Protocol Buffers and gRPC. It also serves as an example of how to use code generation for your services. In the next chapter, we are going to continue our journey into different ways of communication by covering another model, asynchronous communication.
