The keepalive example builds on the Hello World Example and changes the gRPC client and server to show a sample way of configuring keepalive pings on the client and on the server.
For more information on keepalive pings in gRPC, please refer to -
To run the server -
$ tools/bazel run examples/cpp/keepalive:greeter_callback_server
To run the client -
$ tools/bazel run examples/cpp/keepalive:greeter_callback_client
You can find a complete set of instructions for building gRPC and running the Hello World app in the C++ Quick Start.