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feat: demonstrate rust client/server
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19 files changed

+390
-69
lines changed

19 files changed

+390
-69
lines changed

‎examples/BUILD.bazel‎

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‎examples/MODULE.bazel‎

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@@ -6,6 +6,8 @@ bazel_dep(name = "protobuf", version = "29.3")
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bazel_dep(name = "rules_java", version = "8.6.3")
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bazel_dep(name = "rules_proto", version = "7.1.0")
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bazel_dep(name = "rules_python", version = "1.2.0-rc0")
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bazel_dep(name = "rules_rust", version = "0.59.1")
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bazel_dep(name = "rules_rust_prost", version = "0.59.1")
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bazel_dep(name = "rules_go", version = "0.53.0")
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bazel_dep(name = "rules_uv", version = "0.56.0")
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@@ -72,3 +74,70 @@ http_jar(
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sha256 = "0532ad1024d62361561acaedb974d7d16889e7670b36e23e9321dd6b9d334ef9",
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urls = ["https://repo1.maven.org/maven2/com/google/protobuf/protobuf-java/4.27.0-RC3/protobuf-java-4.27.0-RC3.jar"],
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)
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####### RUST ##########
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RUST_EDITION = "2021"
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RUST_VERSION = "1.79.0"
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rust = use_extension("@rules_rust//rust:extensions.bzl", "rust")
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rust.toolchain(
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edition = RUST_EDITION,
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versions = [RUST_VERSION],
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)
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use_repo(rust, "rust_toolchains")
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register_toolchains("@rust_toolchains//:all")
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# Proto toolchain
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crate = use_extension("@rules_rust//crate_universe:extension.bzl", "crate")
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# protobuf / gRPC dependencies
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crate.spec(
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package = "prost",
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version = "0.13.1",
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)
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crate.spec(
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default_features = False,
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package = "prost-types",
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version = "0.13.1",
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)
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crate.spec(
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features = ["transport"],
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package = "tonic",
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version = "0.12.1",
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)
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crate.spec(
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package = "tonic-build",
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version = "0.12.1",
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)
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crate.spec(
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package = "protoc-gen-prost",
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version = "0.4.0",
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)
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crate.annotation(
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crate = "protoc-gen-prost",
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gen_binaries = ["protoc-gen-prost"],
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)
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crate.spec(
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package = "protoc-gen-tonic",
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version = "0.4.0",
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)
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crate.annotation(
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crate = "protoc-gen-tonic",
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gen_binaries = ["protoc-gen-tonic"],
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)
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crate.spec(
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default_features = False,
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features = [
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"macros",
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"net",
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"rt-multi-thread",
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"signal",
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],
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package = "tokio",
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version = "1.38",
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)
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crate.from_specs()
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use_repo(crate, "crates")

‎examples/WORKSPACE.bazel‎

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‎examples/foo.proto‎

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‎examples/go/BUILD‎

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@@ -1,7 +1,7 @@
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load("@rules_go//go:def.bzl", "go_test")
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go_test(
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name = "foo_proto_test",
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srcs = ["foo_proto_test.go"],
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deps = ["//:foo_go_proto"],
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name = "greeter_proto_test",
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srcs = ["greeter_proto_test.go"],
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deps = ["//proto:greeter_go_proto"],
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)

‎examples/go/foo_proto_test.go‎

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‎examples/go/greeter_proto_test.go‎

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package proto_test
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import (
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"testing"
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"example.com/greeter_proto"
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)
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func TestFoo(t *testing.T) {
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msg := &greeter_proto.HelloReply{
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Message: "hello world",
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}
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if msg.Message != "hello world" {
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t.Fail()
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}
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}

‎examples/proto/BUILD.bazel‎

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load("@rules_go//proto:def.bzl", "go_proto_library")
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load("@rules_proto//proto:defs.bzl", "proto_library")
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load("@rules_rust_prost//:defs.bzl", "rust_prost_library")
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load("@protobuf//bazel:py_proto_library.bzl", "py_proto_library")
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package(default_visibility = ["//visibility:public"])
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proto_library(
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name = "greeter_proto",
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srcs = ["greeter.proto"],
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deps = ["@com_google_protobuf//:any_proto"],
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)
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py_proto_library(
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name = "greeter_py_proto",
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deps = [":greeter_proto"],
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)
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# Broken by https://github.com/protocolbuffers/protobuf/pull/19679
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# which causes building C++ code from source.
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# TODO: re-enable once protobuf honors the toolchain
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# java_proto_library(
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# name = "greeter_java_proto",
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# deps = [":greeter_proto"],
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# )
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go_proto_library(
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name = "greeter_go_proto",
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importpath = "example.com/greeter_proto",
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proto = ":greeter_proto",
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)
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# Generate Rust bindings from the generated proto files
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# https://bazelbuild.github.io/rules_rust/rust_proto.html#rust_prost_library
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rust_prost_library(
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name = "greeter_rust_proto",
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proto = ":greeter_proto",
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visibility = ["//visibility:public"],
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)

‎examples/proto/greeter.proto‎

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syntax = "proto3";
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// https://github.com/hyperium/tonic/blob/master/examples/proto/helloworld/helloworld.proto
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package proto;
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option go_package = "example.com/greeter_proto";
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option java_package = "proto";
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import "google/protobuf/any.proto";
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// The greeting service definition.
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service Greeter {
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// Sends a greeting
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rpc SayHello(HelloRequest) returns (HelloReply) {}
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}
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// The request message containing the user's name.
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message HelloRequest {
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string name = 1;
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repeated google.protobuf.Any details = 2;
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}
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// The response message containing the greetings
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message HelloReply {
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string message = 1;
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}

‎examples/proto/src/lib.rs‎

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pub mod proto {
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tonic::include_proto!("proto");
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}

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