gRPC Examples

Introduction

gRPC C++ examples built with CMake.

Dependencies

• gRPC 1.34
• CMake 3.13.0+

Files

.
├── CMakeLists.txt
├── docker
│   └── grpc.Dockerfile
├── grpc
│   ├── arithmetics
│   │   ├── arithmetics_client.cc
│   │   ├── arithmetics_server.cc
│   │   └── CMakeLists.txt
│   ├── CMakeLists.txt
│   └── greetings
│       ├── CMakeLists.txt
│       ├── greetings_client.cc
│       └── greetings_server.cc
├── LICENSE.md
├── protos
│   ├── arithmetics.proto
│   └── greetings.proto
└── README.md

Usages

Build Docker Image

$ docker build -f docker/grpc.Dockerfile --build-arg GPRC_VERSION=1.34.0 --build-arg NUM_JOBS=8 --tag grpc-cmake:1.34.0 .

To build for different gRPC versions and use different number of CPU threads, please change the values in the build arguments.

Run Docker Container

Two separate Docker containers should be started for the gRPC server and the gRPC client.

$ docker run -it --rm --network host -v $(pwd):/mnt grpc-cmake:1.34.0

Build Examples

$ cmake -B build
$ cmake --build build --config Release --parallel

All the executable files would be generated in build/grpc directory.

Run Examples

Arithmetics

In one terminal, we start the gRPC server.

$ ./build/grpc/arithmetics/arithmetics_server
Server listening on 0.0.0.0:50051

In another terminal, we start the gRPC client.

$ ./build/grpc/arithmetics/arithmetics_client 
Please enter your binary arithmetic expression:
300 + 200
gRPC returned: 
500
Please enter your binary arithmetic expression:
300 - 200
gRPC returned: 
100
Please enter your binary arithmetic expression:
300 * 200
gRPC returned: 
60000
Please enter your binary arithmetic expression:
300 / 200
gRPC returned: 
1
Please enter your binary arithmetic expression:

Hello World

In one terminal, we start the gRPC server.

$ ./build/grpc/greetings/greetings_server 
Server listening on 0.0.0.0:50051

In another terminal, we start the gRPC client.

$ ./build/grpc/greetings/greetings_client 
Please enter your user name:
Lei Mao
gRPC returned: 
Hello Lei Mao!
Please enter your user name:
Michael Jordan
gRPC returned: 
Hello Michael Jordan!
Please enter your user name:
Kobe Bryant
gRPC returned: 
Hello Kobe Bryant!
Please enter your user name:

References

• gRPC Tutorial