How to Auto-Generate gRPC Code Using protoc

Creating gRPC code from scratch is a laborious undertaking that, for many companies, makes the cost of implementing gRPC outweigh the benefits. At the very least, starting from scratch means converting gRPC data structures (a.k.a messages) expressed in text and numbers to and from the Protocol Buffers binary format that's intrinsic to facilitating communication between gRPC clients and a server. (See Figure 1, below)