How to create a C++ gRPC application

Steps to take in creating a gRPC application from an example in the C++ gRPC package.

The application in this case is the reporting to the control plane of the fill level of an ERSAP backend reassembler's fifo

Setup some environmental variables (assuming bash)

export GRPC_INSTALL_DIR=/daqfs/gRPC/installation
export PATH="$GRPC_INSTALL_DIR/bin:$PATH"
export LD_LIBRARY_PATH="$GRPC_INSTALL_DIR/lib:$LD_LIBRARY_PATH"

The alternative is to run a provided bash setup script which does the same thing

/daqfs/gRPC/setupgrpc

Clone the repository

git clone --recurse-submodules -b v1.50 --depth 1 --shallow-submodules https://github.com/grpc/grpc

Build the package

cd grpc
mkdir -p cmake/build
pushd cmake/build
cmake -DgRPC_INSTALL=ON -DgRPC_BUILD_TESTS=OFF -DCMAKE_INSTALL_PREFIX=$GRPC_INSTALL_DIR -DBUILD_SHARED_LIBS=ON ../..
make -j 4
make install
popd

Currently grpc is installed in /daqfs/gRPC/