[英]golang + grpc: register a service on GrpcServer
I'm working with this example for building a go lang grpc server.我正在使用这个示例来构建一个 go lang grpc 服务器。
But it seems that I'm missing something - In the example there is a phase of registering a service to the grpc-server but my protoc output has no registration method exported:但似乎我遗漏了一些东西 - 在示例中,有一个向 grpc-server 注册服务的阶段,但我的 protoc 输出没有导出注册方法:
s := grpc.NewServer()
pb.RegisterGreeterServer(s, &server{})
Was there a change in the compilation of protobuf3 files? protobuf3 文件的编译有变化吗?
Am I'm compiling it in the wrong way?我是否以错误的方式编译它?
protoc --go_output=. *.proto
And how can I make the service work for the server, It is currently not:以及如何使服务为服务器工作,目前不是:
func main() {
lis, err := net.Listen("tcp", port)
if err != nil {
log.Fatalf("failed to listen: %v", err)
}
s := grpc.NewServer()
//register should go here?!
reflection.Register(s)
if err := s.Serve(lis); err != nil {
log.Fatalf("failed to server: %v", err)
}
}
Am I'm compiling it in the wrong way?
我是否以错误的方式编译它?
protoc --go_output=. *.proto
Yes.是的。 As pointed out in the comment by Wendy Adi , the command-line option to
protoc
should be --go_out
not --go_output
and the plugins=grpc
option is needed as well (as per the codegen.sh
script ).正如指出的评论由温迪阿迪,命令行选项来
protoc
应--go_out
不--go_output
和plugins=grpc
选项需要以及(按照codegen.sh
脚本)。 You should be able to use protoc
to regenerate the .pb.go
file in the helloworld example:你应该能够使用
protoc
再生.pb.go
在HelloWorld示例文件:
cd $GOPATH/src/google.golang.org/grpc/examples/helloworld
mv helloworld.pb.go helloworld.pb.go.orig
protoc --go_out=plugins=grpc:. helloworld.proto
The greeter_server
should compile correctly afterwards:之后
greeter_server
应该可以正确编译:
cd ../greeter_server
go build .
如果使用 grpc 3 使用下面的 cmd
protoc -I=proto --go_out=. --go-grpc_out=. proto/*.proto
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