php+golang grpc客户端和服务端简单案例

github项目地址

1. 前置工作

• 安装 protobuf

• 安装PHP相关扩展（grpc、protobuf）

• 生成grpc_php_plugin

  • 官方地址
  • 实际操作

  $ git clone -b RELEASE_TAG_HERE https://github.com/grpc/grpc
  $ cd grpc
  $ git submodule update --init
  $ mkdir -p cmake/build
  $ cd cmake/build
  $ cmake ../..
  $ make protoc grpc_php_plugin
  $ mv ./grpc_php_plugin /opt/homebrew/bin/
  

• 生成相应语言的文件命令

  GO

   protoc -I. --go_out=plugins=grpc:./pb pb/user.proto
  

  PHP

  cd php-server
  
  protoc --proto_path=../pb --php_out=. --grpc_out=. --plugin=protoc-gen-grpc=/opt/homebrew/bin/grpc_php_plugin ../pb/user.proto
  

2. 关键代码片段

go server

var (
	port = flag.Int("port", 50051, "The server port")
)

type UserService struct {
}

func (us *UserService) UserIndex(ctx context.Context, in *user.UserIndexRequest) (*user.UserIndexResponse, error) {
	log.Printf("receive user index request: page %d page_size %d", in.Page, in.PageSize)
	return &user.UserIndexResponse{
		Err: 0,
		Msg: "success",
		Data: []*user.UserEntity{
			{Name: "u1", Age: 11},
			{Name: "u2", Age: 12},
		},
	}, nil
}
func main() {
	lis, err := net.Listen("tcp", fmt.Sprintf("localhost:%d", *port))
	if err != nil {
		log.Fatalf("failed listen: %v", err)
	}
	grpcServer := grpc.NewServer()

	user.RegisterUserServer(grpcServer, &UserService{})

	reflection.Register(grpcServer)

	if err := grpcServer.Serve(lis); err != nil {
		log.Printf("failed to server: %v", err)
	}
}

go client

var (
	addr = flag.String("addr", "localhost:50051", "the address to connect to")
)

func main()  {
	conn, err := grpc.Dial(*addr, grpc.WithTransportCredentials(insecure.NewCredentials()))
	if err != nil {
		log.Fatalf("did not connect: %v", err)
	}

	defer conn.Close()

	userClient := user.NewUserClient(conn)

	ctx, cancel := context.WithTimeout(context.Background(), time.Second*3)
	defer cancel()

	userIndexReponse, err := userClient.UserIndex(ctx, &user.UserIndexRequest{Page: 1, PageSize: 12})
	if err != nil {
		log.Printf("user index could not greet: %v", err)
	}

	if 0 == userIndexReponse.Err {
		log.Printf("user index success: %s", userIndexReponse.Msg)
		userEntityList := userIndexReponse.Data
		for _, row := range userEntityList {
			fmt.Println(row.Name, row.Age)
		}
	} else {
		log.Printf("user index error: %d", userIndexReponse.Err)
	}
}

php client

require dirname(__FILE__).'/vendor/autoload.php';

$hostname = !empty($argv[2]) ? $argv[2] : 'localhost:50051';

$client = new \User\UserClient($hostname, [
    'credentials' => Grpc\ChannelCredentials::createInsecure(),
]);
$indexRequest = new \User\UserIndexRequest();
$indexRequest->setPage(1);
$indexRequest->setPageSize(12);
list($response, $status) = $client->UserIndex($indexRequest)->wait();
if ($status->code !== Grpc\STATUS_OK) {
    echo "ERROR: " . $status->code . ", " . $status->details . PHP_EOL;
}
foreach ($response->getData() as $key=>$value) {
    echo "name =>{$value->getName()} --- age =>{$value->getAge()} " . PHP_EOL;
}
echo "index {$response->getMsg()}" . PHP_EOL;

3. 启动GRPC服务

➜  grpc-demo go run server.go 
2022/01/24 09:55:49 receive user index request: page 1 page_size 12
2022/01/24 09:55:49 receive user view request: uid 1
2022/01/24 09:55:49 receive user post request: name 12312 password 324523 age 12

4. 启动GRPC客户端

GO GRPC客户端

➜  grpc-demo go run client/client.go 
2022/01/24 09:56:46 user index success: success
u1 11
u2 12
2022/01/24 09:56:46 user view success: success
james 28
2022/01/24 09:56:46 user post success: success
2022/01/24 09:56:46 user delete success: success

PHP GRPC客户端

➜  php-server php  client.php
success
success
success