Trying to add protoc

lib/Cargo.toml

@@ -5,3 +5,6 @@ edition = "2024"
 
 [dependencies]
 uuid = { version = "1.18.1", features = ["v4"] }
+
+[build-dependencies]
+tonic-prost-build = "0.14.2"

lib/build.rs

@@ -0,0 +1,4 @@
+fn main() -> Result<(), Box<dyn std::error::Error>> {
+    tonic_prost_build::compile_protos("proto/helloworld.proto")?;
+    Ok(())
+}

lib/proto/helloworld.proto

@@ -0,0 +1,14 @@
+syntax = "proto3";
+package helloworld;
+
+service Greeter {
+    rpc SayHello (HelloRequest) returns (HelloReply);
+}
+
+message HelloRequest {
+   string name = 1;
+}
+
+message HelloReply {
+    string message = 1;
+}