gRPC is a transport mechanism that sends and receives messages between two systems. Traditionally, these systems are a server and a client. As we described in the previous chapters, RPC can be implemented in Go for transferring JSON. We called it a JSON RPC service. Similarly, gRPC is specially designed to transfer data in the form of protocol buffers.
gRPC makes service creation easy and elegant. It provides a nice set of APIs that we can use to define services and start running them. In this section, we will focus on how to create a gRPC service and how to use it. The main advantage of gRPC is that it can be understood by multiple programming languages. Protocol buffers provide a common data structure. So, this combination enables seamless communication between various tech stacks and systems. This is the integral concept of distributed computing.
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