Running the tests ----------------- In order to run the tests, you will need to have the `grpcio`, `gevent`, and `grpcio-tools` python packages installed. You can install them using `pip`. It is recommended that you use a python virtualenv to do this. ``` $ virtualenv path/to/virtualenv # to create a virtualenv $ . path/to/virtualenv/bin/activate # to use an existing virtualenv $ pip install grpcio-tools gevent $ pip install grpcio # Need to install grpcio-tools first to avoid a versioning problem ``` Building GRPC ------------- In order to compile this project, and anything which depends on it, you will need a working installation of the GRPC C core libraries. This library currently uses the 0.14 version range, so checkout an appropriate revision of the repository, and install as follows: ```sh git clone https://github.com/grpc/grpc.git git checkout 2b223977c13975648bac2f422363e1ebf83506ce cd grpc git submodule update --init make sudo make install ``` Alternatively, using Nix, pass the following expression to `nix-build` and point Stack to the build products in the Nix store: ```nix let pkgs = import {}; in pkgs.stdenv.mkDerivation rec { name = "grpc"; src = pkgs.fetchgit { url = "https://github.com/grpc/grpc.git"; rev = "2b223977c13975648bac2f422363e1ebf83506ce"; sha256 = "0arxjdczgj6rbg14f6x24863mrz0xgpakmdfg54zp0xp7h2pghm6"; }; preInstall = "export prefix"; buildInputs = [ pkgs.darwin.cctools pkgs.autoconf pkgs.automake pkgs.libtool pkgs.which pkgs.zlib pkgs.openssl ]; } ``` Using the Library ----------------- You must compile with `-threaded`, because we rely on being able to execute Haskell while blocking on foreign calls to the gRPC library. If not using code generation, the recommended place to start is in the `Network.GRPC.HighLevel.Server.Unregistered` module, where `serverLoop` provides a handler loop.