hossainemruz/hello-grpc

hello-grpc is a starter project that shows how two pieces of software can talk to each other over a network using a technology called gRPC. Instead of building a full app, it demonstrates a simple setup where one program (the server) can do math, like adding two numbers together or summing up a list of numbers, and another program (the client) can ask it to do that math and get the result back. At a high level, gRPC is a way for programs to communicate that is faster and more structured than a typical web API. Instead of sending plain text requests, both sides agree on a strict contract (defined in a file called a "protocol buffer") that spells out exactly what data will be sent and received. The project uses a tool to automatically generate the plumbing code from that contract, so the developer can focus on the actual logic, in this case, the math, rather than wiring up the communication by hand. This is aimed at developers who are learning how gRPC works and want a working example to study or copy from. If you are building a system where multiple services need to pass data back and forth quickly and reliably, say, a mobile app talking to a backend, or microservices within a company, this shows you the basic pattern. You could use it as a template, swap out the math functions for your own tasks, and have the beginnings of your own gRPC-based system. The project is built in Go and includes a calculator example, though the README doesn't go into detail on some sections like implementing the server or writing the client. It does link out to official documentation for anyone who wants to dig deeper into the concepts behind gRPC and protocol buffers.