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The gRPC library for Rust built on C Core library and futures
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BusyJay grpcio-sys: fix openssl vendor build (#326)
Vendor build implemented in #262 is not configured properly, compiler
will use the system library during compilation. This PR fixes the
problem by configuring package searching path for openssl.
Latest commit ce8139d Jun 11, 2019


gRPC-rs is a Rust wrapper of gRPC Core. gRPC is a high performance, open source universal RPC framework that puts mobile and HTTP/2 first. Build Status Build status


This project is still under development. The following features with the check marks are supported:

  • Basic asynchronous unary/steaming call
  • SSL
  • Generic call
  • Connection level compression
  • Interoperability test
  • QPS benchmark
  • Custom metadata
  • Health check
  • Reflection
  • Authentication
  • Load balance


  • CMake >= 3.8.0
  • Rust >= 1.19.0
  • binutils >= 2.22
  • By default, the secure feature is enabled, therefore Go (>=1.7) is required.

For Linux and MacOS, you also need to install gcc (or clang) too.

For Windows, you also need to install following software:

  • Active State Perl
  • yasm
  • Visual Studio 2015+


$ git submodule update --init --recursive # if you just cloned the repository
$ cargo build


To generate the sources from proto files:

Option 1 - Manual Generation

  1. Install the protobuf compiler:
$ cargo install protobuf-codegen
  1. Install the gRPC compiler:
$ cargo install grpcio-compiler
  1. Generate the sources:
$ protoc --rust_out=. --grpc_out=. --plugin=protoc-gen-grpc=`which grpc_rust_plugin` example.proto

Option 2 - Programmatic Generation

Programmatic generation can be used to generate Rust modules from proto files via your by using protoc-grpcio.

For more information and examples see README.

To include this project as a dependency:

grpcio = "0.4"

Feature secure

secure feature enables support for TLS encryption and some authentication mechanism. When you do not need it, for example when working in intranet, you can disable it by using the following configuration:

grpcio = { version = "0.4", default-features = false, features = ["protobuf-codec"] }


See benchmark to find out how to run a benchmark by yourself.

Cross Compile

See cross_compile

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