This is an automated email from the ASF dual-hosted git repository.

zhaoyunxing pushed a commit to branch 3.0
in repository https://gitbox.apache.org/repos/asf/dubbo-go-samples.git

commit 5582c91e8d661e8e40080a3ce9e29acf087088f4
Author: ChangedenChan <[email protected]>
AuthorDate: Sat Aug 21 18:25:01 2021 +0800

    Add dubbo3-protobuf-nacos sample (#194)
    
    Co-authored-by: Changeden <[email protected]>
---
 generic/protobuf-nacos/client/cmd/client.go        | 126 +++++++
 generic/protobuf-nacos/client/conf/client.yml      |  23 ++
 generic/protobuf-nacos/client/conf/log.yml         |  27 ++
 generic/protobuf-nacos/client/pkg/helloworld.pb.go | 419 +++++++++++++++++++++
 generic/protobuf-nacos/client/pkg/helloworld.proto |  38 ++
 generic/protobuf-nacos/client/pkg/protobuf.mk      |  26 ++
 generic/protobuf-nacos/server/cmd/server.go        |  81 ++++
 generic/protobuf-nacos/server/conf/client.yml      |  22 ++
 generic/protobuf-nacos/server/conf/log.yml         |  27 ++
 generic/protobuf-nacos/server/conf/server.yml      |  28 ++
 generic/protobuf-nacos/server/pkg/greeter.go       |  81 ++++
 11 files changed, 898 insertions(+)

diff --git a/generic/protobuf-nacos/client/cmd/client.go 
b/generic/protobuf-nacos/client/cmd/client.go
new file mode 100644
index 0000000..f0704dd
--- /dev/null
+++ b/generic/protobuf-nacos/client/cmd/client.go
@@ -0,0 +1,126 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package main
+
+import (
+       "context"
+       "fmt"
+       "os"
+       "os/signal"
+       "syscall"
+       "time"
+)
+
+import (
+       _ "dubbo.apache.org/dubbo-go/v3/cluster/cluster_impl"
+       _ "dubbo.apache.org/dubbo-go/v3/cluster/loadbalance"
+       "dubbo.apache.org/dubbo-go/v3/common/logger"
+       _ "dubbo.apache.org/dubbo-go/v3/common/proxy/proxy_factory"
+       "dubbo.apache.org/dubbo-go/v3/config"
+       _ "dubbo.apache.org/dubbo-go/v3/filter/filter_impl"
+       _ "dubbo.apache.org/dubbo-go/v3/protocol/dubbo3"
+       _ "dubbo.apache.org/dubbo-go/v3/protocol/grpc"
+       _ "dubbo.apache.org/dubbo-go/v3/registry/nacos"
+       _ "dubbo.apache.org/dubbo-go/v3/registry/protocol"
+       _ "dubbo.apache.org/dubbo-go/v3/registry/zookeeper"
+)
+
+import (
+       "github.com/apache/dubbo-go-samples/generic/protobuf-nacos/client/pkg"
+)
+
+var (
+       greeterProvider = new(pkg.GreeterClientImpl)
+       survivalTimeout = int(3 * time.Second)
+)
+
+func init() {
+       config.SetConsumerService(greeterProvider)
+}
+
+// need to setup environment variable "CONF_CONSUMER_FILE_PATH" to 
"conf/client.yml" before run
+func main() {
+       config.Load()
+       time.Sleep(time.Second * 3)
+
+       testSayHello()
+
+       initSignal()
+}
+
+func testSayHello() {
+       ctx := context.Background()
+       ctx = context.WithValue(ctx, "tri-req-id", "triple-request-id-demo")
+
+       req := pkg.HelloRequest{
+               Name: "laurence",
+       }
+
+       r, err := greeterProvider.SayHelloStream(ctx)
+       if err != nil {
+               panic(err)
+       }
+
+       for i := 0; i < 2; i++ {
+               if err := r.Send(&req); err != nil {
+                       logger.Errorf("Send SayHelloStream num %d request error 
= %v\n", i+1, err)
+                       return
+               }
+       }
+
+       rspUser := &pkg.User{}
+       if err := r.RecvMsg(rspUser); err != nil {
+               logger.Errorf("Receive 1 SayHelloStream response user error = 
%v\n", err)
+               return
+       }
+       logger.Infof("Receive 1 user = %+v\n", rspUser)
+       if err := r.Send(&req); err != nil {
+               logger.Errorf("Send SayHelloStream num %d request error = 
%v\n", 3, err)
+               return
+       }
+       rspUser2 := &pkg.User{}
+       if err := r.RecvMsg(rspUser2); err != nil {
+               logger.Errorf("Receive 2 SayHelloStream response user error = 
%v\n", err)
+               return
+       }
+       logger.Infof("Receive 2 user = %+v\n", rspUser2)
+}
+
+func initSignal() {
+       signals := make(chan os.Signal, 1)
+       // It is not possible to block SIGKILL or syscall.SIGSTOP
+       signal.Notify(signals, os.Interrupt, os.Kill, syscall.SIGHUP, 
syscall.SIGQUIT, syscall.SIGTERM, syscall.SIGINT)
+       for {
+               sig := <-signals
+               logger.Infof("get signal %s", sig.String())
+               switch sig {
+               case syscall.SIGHUP:
+                       // reload()
+               default:
+                       time.Sleep(time.Second * 5)
+                       time.AfterFunc(time.Duration(survivalTimeout), func() {
+                               logger.Warnf("app exit now by force...")
+                               os.Exit(1)
+                       })
+
+                       // The program exits normally or timeout forcibly exits.
+                       fmt.Println("provider app exit now...")
+                       return
+               }
+       }
+}
diff --git a/generic/protobuf-nacos/client/conf/client.yml 
b/generic/protobuf-nacos/client/conf/client.yml
new file mode 100644
index 0000000..74e0f18
--- /dev/null
+++ b/generic/protobuf-nacos/client/conf/client.yml
@@ -0,0 +1,23 @@
+# dubbo-go3 client yaml configure file
+# application config (not necessary)
+application:
+  organization: "dubbo.io"
+  name: "greeterImpl"
+  module: "dubbo-go3.0 client"
+  version: "0.0.1"
+  environment: "dev"
+
+# registry config
+registries:
+  "demoZk":
+    protocol: "nacos"
+    timeout: "3s"
+    address: "console.nacos.io:80"
+
+# reference config
+references:
+  "greeterImpl":
+    registry: "demoZk"
+    protocol: "tri"
+    interface: "protobuf.Greeter"
+    url: tri://localhost:20001
diff --git a/generic/protobuf-nacos/client/conf/log.yml 
b/generic/protobuf-nacos/client/conf/log.yml
new file mode 100644
index 0000000..8c3f700
--- /dev/null
+++ b/generic/protobuf-nacos/client/conf/log.yml
@@ -0,0 +1,27 @@
+level: "info"
+development: true
+disableCaller: false
+disableStacktrace: false
+sampling:
+encoding: "console"
+
+# encoder
+encoderConfig:
+  messageKey: "message"
+  levelKey: "level"
+  timeKey: "time"
+  nameKey: "logger"
+  callerKey: "caller"
+  stacktraceKey: "stacktrace"
+  lineEnding: ""
+  levelEncoder: "capital"
+  timeEncoder: "iso8601"
+  durationEncoder: "seconds"
+  callerEncoder: "short"
+  nameEncoder: ""
+
+outputPaths:
+  - "stderr"
+errorOutputPaths:
+  - "stderr"
+initialFields:
diff --git a/generic/protobuf-nacos/client/pkg/helloworld.pb.go 
b/generic/protobuf-nacos/client/pkg/helloworld.pb.go
new file mode 100644
index 0000000..bdd4fc5
--- /dev/null
+++ b/generic/protobuf-nacos/client/pkg/helloworld.pb.go
@@ -0,0 +1,419 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: helloworld.proto
+
+package pkg
+
+import (
+       context "context"
+       fmt "fmt"
+       math "math"
+)
+
+import (
+       "dubbo.apache.org/dubbo-go/v3/protocol"
+       dgrpc "dubbo.apache.org/dubbo-go/v3/protocol/dubbo3"
+       "dubbo.apache.org/dubbo-go/v3/protocol/invocation"
+
+       tripleConstant "github.com/dubbogo/triple/pkg/common/constant"
+       dubbo3 "github.com/dubbogo/triple/pkg/triple"
+
+       proto "github.com/golang/protobuf/proto"
+
+       grpc "google.golang.org/grpc"
+       codes "google.golang.org/grpc/codes"
+       status "google.golang.org/grpc/status"
+)
+
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.ProtoPackageIsVersion3 // please upgrade the proto package
+
+// The request message containing the user's name.
+type HelloRequest struct {
+       Name                 string   `protobuf:"bytes,1,opt,name=name,proto3" 
json:"name,omitempty"`
+       XXX_NoUnkeyedLiteral struct{} `json:"-"`
+       XXX_unrecognized     []byte   `json:"-"`
+       XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *HelloRequest) Reset()         { *m = HelloRequest{} }
+func (m *HelloRequest) String() string { return proto.CompactTextString(m) }
+func (*HelloRequest) ProtoMessage()    {}
+func (*HelloRequest) Descriptor() ([]byte, []int) {
+       return fileDescriptor_17b8c58d586b62f2, []int{0}
+}
+
+func (m *HelloRequest) XXX_Unmarshal(b []byte) error {
+       return xxx_messageInfo_HelloRequest.Unmarshal(m, b)
+}
+func (m *HelloRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, 
error) {
+       return xxx_messageInfo_HelloRequest.Marshal(b, m, deterministic)
+}
+func (m *HelloRequest) XXX_Merge(src proto.Message) {
+       xxx_messageInfo_HelloRequest.Merge(m, src)
+}
+func (m *HelloRequest) XXX_Size() int {
+       return xxx_messageInfo_HelloRequest.Size(m)
+}
+func (m *HelloRequest) XXX_DiscardUnknown() {
+       xxx_messageInfo_HelloRequest.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_HelloRequest proto.InternalMessageInfo
+
+func (m *HelloRequest) GetName() string {
+       if m != nil {
+               return m.Name
+       }
+       return ""
+}
+
+// The response message containing the greetings
+type User struct {
+       Name                 string   `protobuf:"bytes,1,opt,name=name,proto3" 
json:"name,omitempty"`
+       Id                   string   `protobuf:"bytes,2,opt,name=id,proto3" 
json:"id,omitempty"`
+       Age                  int32    `protobuf:"varint,3,opt,name=age,proto3" 
json:"age,omitempty"`
+       XXX_NoUnkeyedLiteral struct{} `json:"-"`
+       XXX_unrecognized     []byte   `json:"-"`
+       XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *User) Reset()         { *m = User{} }
+func (m *User) String() string { return proto.CompactTextString(m) }
+func (*User) ProtoMessage()    {}
+func (*User) Descriptor() ([]byte, []int) {
+       return fileDescriptor_17b8c58d586b62f2, []int{1}
+}
+
+func (m *User) XXX_Unmarshal(b []byte) error {
+       return xxx_messageInfo_User.Unmarshal(m, b)
+}
+func (m *User) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+       return xxx_messageInfo_User.Marshal(b, m, deterministic)
+}
+func (m *User) XXX_Merge(src proto.Message) {
+       xxx_messageInfo_User.Merge(m, src)
+}
+func (m *User) XXX_Size() int {
+       return xxx_messageInfo_User.Size(m)
+}
+func (m *User) XXX_DiscardUnknown() {
+       xxx_messageInfo_User.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_User proto.InternalMessageInfo
+
+func (m *User) GetName() string {
+       if m != nil {
+               return m.Name
+       }
+       return ""
+}
+
+func (m *User) GetId() string {
+       if m != nil {
+               return m.Id
+       }
+       return ""
+}
+
+func (m *User) GetAge() int32 {
+       if m != nil {
+               return m.Age
+       }
+       return 0
+}
+
+func init() {
+       proto.RegisterType((*HelloRequest)(nil), "protobuf.HelloRequest")
+       proto.RegisterType((*User)(nil), "protobuf.User")
+}
+
+func init() { proto.RegisterFile("helloworld.proto", 
fileDescriptor_17b8c58d586b62f2) }
+
+var fileDescriptor_17b8c58d586b62f2 = []byte{
+       // 178 bytes of a gzipped FileDescriptorProto
+       0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0x12, 
0xc8, 0x48, 0xcd, 0xc9,
+       0xc9, 0x2f, 0xcf, 0x2f, 0xca, 0x49, 0xd1, 0x2b, 0x28, 0xca, 0x2f, 0xc9, 
0x17, 0xe2, 0x00, 0x53,
+       0x49, 0xa5, 0x69, 0x4a, 0x4a, 0x5c, 0x3c, 0x1e, 0x20, 0xd9, 0xa0, 0xd4, 
0xc2, 0xd2, 0xd4, 0xe2,
+       0x12, 0x21, 0x21, 0x2e, 0x96, 0xbc, 0xc4, 0xdc, 0x54, 0x09, 0x46, 0x05, 
0x46, 0x0d, 0xce, 0x20,
+       0x30, 0x5b, 0xc9, 0x86, 0x8b, 0x25, 0xb4, 0x38, 0xb5, 0x08, 0x9b, 0x9c, 
0x10, 0x1f, 0x17, 0x53,
+       0x66, 0x8a, 0x04, 0x13, 0x58, 0x84, 0x29, 0x33, 0x45, 0x48, 0x80, 0x8b, 
0x39, 0x31, 0x3d, 0x55,
+       0x82, 0x59, 0x81, 0x51, 0x83, 0x35, 0x08, 0xc4, 0x34, 0xaa, 0xe7, 0x62, 
0x77, 0x2f, 0x4a, 0x4d,
+       0x2d, 0x49, 0x2d, 0x12, 0x32, 0xe1, 0xe2, 0x08, 0x4e, 0xac, 0x04, 0xdb, 
0x27, 0x24, 0xa6, 0x07,
+       0x73, 0x83, 0x1e, 0xb2, 0x03, 0xa4, 0xf8, 0x10, 0xe2, 0x20, 0x4b, 0x95, 
0x18, 0x84, 0xec, 0xb8,
+       0xf8, 0x60, 0xba, 0x82, 0x4b, 0x8a, 0x52, 0x13, 0x73, 0x89, 0xd7, 0xab, 
0xc1, 0x68, 0xc0, 0x98,
+       0xc4, 0x06, 0x16, 0x34, 0x06, 0x04, 0x00, 0x00, 0xff, 0xff, 0x98, 0x59, 
0x9f, 0x6b, 0x07, 0x01,
+       0x00, 0x00,
+}
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ context.Context
+var _ grpc.ClientConnInterface
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the grpc package it is being compiled against.
+const _ = grpc.SupportPackageIsVersion6
+
+// GreeterClient is the client API for Greeter service.
+//
+// For semantics around ctx use and closing/ending streaming RPCs, please 
refer to https://godoc.org/google.golang.org/grpc#ClientConn.NewStream.
+type GreeterClient interface {
+       // Sends a greeting
+       SayHello(ctx context.Context, in *HelloRequest, opts 
...grpc.CallOption) (*User, error)
+       SayHelloStream(ctx context.Context, opts ...grpc.CallOption) 
(Greeter_SayHelloStreamClient, error)
+}
+
+type greeterClient struct {
+       cc grpc.ClientConnInterface
+}
+
+func NewGreeterClient(cc grpc.ClientConnInterface) GreeterClient {
+       return &greeterClient{cc}
+}
+
+func (c *greeterClient) SayHello(ctx context.Context, in *HelloRequest, opts 
...grpc.CallOption) (*User, error) {
+       out := new(User)
+       err := c.cc.Invoke(ctx, "/protobuf.Greeter/SayHello", in, out, opts...)
+       if err != nil {
+               return nil, err
+       }
+       return out, nil
+}
+
+func (c *greeterClient) SayHelloStream(ctx context.Context, opts 
...grpc.CallOption) (Greeter_SayHelloStreamClient, error) {
+       stream, err := c.cc.NewStream(ctx, &_Greeter_serviceDesc.Streams[0], 
"/protobuf.Greeter/SayHelloStream", opts...)
+       if err != nil {
+               return nil, err
+       }
+       x := &greeterSayHelloStreamClient{stream}
+       return x, nil
+}
+
+type Greeter_SayHelloStreamClient interface {
+       Send(*HelloRequest) error
+       Recv() (*User, error)
+       grpc.ClientStream
+}
+
+type greeterSayHelloStreamClient struct {
+       grpc.ClientStream
+}
+
+func (x *greeterSayHelloStreamClient) Send(m *HelloRequest) error {
+       return x.ClientStream.SendMsg(m)
+}
+
+func (x *greeterSayHelloStreamClient) Recv() (*User, error) {
+       m := new(User)
+       if err := x.ClientStream.RecvMsg(m); err != nil {
+               return nil, err
+       }
+       return m, nil
+}
+
+// GreeterServer is the server API for Greeter service.
+type GreeterServer interface {
+       // Sends a greeting
+       SayHello(context.Context, *HelloRequest) (*User, error)
+       SayHelloStream(Greeter_SayHelloStreamServer) error
+}
+
+// UnimplementedGreeterServer can be embedded to have forward compatible 
implementations.
+type UnimplementedGreeterServer struct {
+}
+
+func (*UnimplementedGreeterServer) SayHello(ctx context.Context, req 
*HelloRequest) (*User, error) {
+       return nil, status.Errorf(codes.Unimplemented, "method SayHello not 
implemented")
+}
+func (*UnimplementedGreeterServer) SayHelloStream(srv 
Greeter_SayHelloStreamServer) error {
+       return status.Errorf(codes.Unimplemented, "method SayHelloStream not 
implemented")
+}
+
+func RegisterGreeterServer(s *grpc.Server, srv GreeterServer) {
+       s.RegisterService(&_Greeter_serviceDesc, srv)
+}
+
+func _Greeter_SayHello_Handler(srv interface{}, ctx context.Context, dec 
func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, 
error) {
+       in := new(HelloRequest)
+       if err := dec(in); err != nil {
+               return nil, err
+       }
+       if interceptor == nil {
+               return srv.(GreeterServer).SayHello(ctx, in)
+       }
+       info := &grpc.UnaryServerInfo{
+               Server:     srv,
+               FullMethod: "/protobuf.Greeter/SayHello",
+       }
+       handler := func(ctx context.Context, req interface{}) (interface{}, 
error) {
+               return srv.(GreeterServer).SayHello(ctx, req.(*HelloRequest))
+       }
+       return interceptor(ctx, in, info, handler)
+}
+
+func _Greeter_SayHelloStream_Handler(srv interface{}, stream 
grpc.ServerStream) error {
+       return 
srv.(GreeterServer).SayHelloStream(&greeterSayHelloStreamServer{stream})
+}
+
+type Greeter_SayHelloStreamServer interface {
+       Send(*User) error
+       Recv() (*HelloRequest, error)
+       grpc.ServerStream
+}
+
+type greeterSayHelloStreamServer struct {
+       grpc.ServerStream
+}
+
+func (x *greeterSayHelloStreamServer) Send(m *User) error {
+       return x.ServerStream.SendMsg(m)
+}
+
+func (x *greeterSayHelloStreamServer) Recv() (*HelloRequest, error) {
+       m := new(HelloRequest)
+       if err := x.ServerStream.RecvMsg(m); err != nil {
+               return nil, err
+       }
+       return m, nil
+}
+
+var _Greeter_serviceDesc = grpc.ServiceDesc{
+       ServiceName: "protobuf.Greeter",
+       HandlerType: (*GreeterServer)(nil),
+       Methods: []grpc.MethodDesc{
+               {
+                       MethodName: "SayHello",
+                       Handler:    _Greeter_SayHello_Handler,
+               },
+       },
+       Streams: []grpc.StreamDesc{
+               {
+                       StreamName:    "SayHelloStream",
+                       Handler:       _Greeter_SayHelloStream_Handler,
+                       ServerStreams: true,
+                       ClientStreams: true,
+               },
+       },
+       Metadata: "helloworld.proto",
+}
+
+type greeterDubbo3Client struct {
+       cc *dubbo3.TripleConn
+}
+
+func NewGreeterDubbo3Client(cc *dubbo3.TripleConn) GreeterClient {
+       return &greeterDubbo3Client{cc}
+}
+func (c *greeterDubbo3Client) SayHello(ctx context.Context, in *HelloRequest, 
opt ...grpc.CallOption) (*User, error) {
+       out := new(User)
+       interfaceKey := ctx.Value(tripleConstant.InterfaceKey).(string)
+       err := c.cc.Invoke(ctx, "/"+interfaceKey+"/SayHello", in, out)
+       if err != nil {
+               return nil, err
+       }
+       return out, nil
+}
+func (c *greeterDubbo3Client) SayHelloStream(ctx context.Context, opt 
...grpc.CallOption) (Greeter_SayHelloStreamClient, error) {
+       interfaceKey := ctx.Value(tripleConstant.InterfaceKey).(string)
+       stream, err := c.cc.NewStream(ctx, "/"+interfaceKey+"/SayHelloStream", 
opt...)
+       if err != nil {
+               return nil, err
+       }
+       x := &greeterSayHelloStreamClient{stream}
+       return x, nil
+}
+
+// GreeterClientImpl is the client API for Greeter service.
+//
+// For semantics around ctx use and closing/ending streaming RPCs, please 
refer to https://godoc.org/google.golang.org/grpc#ClientConn.NewStream.
+type GreeterClientImpl struct {
+       // Sends a greeting
+       SayHello       func(ctx context.Context, in *HelloRequest, out *User) 
error
+       SayHelloStream func(ctx context.Context) (Greeter_SayHelloStreamClient, 
error)
+}
+
+func (c *GreeterClientImpl) Reference() string {
+       return "greeterImpl"
+}
+
+func (c *GreeterClientImpl) GetDubboStub(cc *dubbo3.TripleConn) GreeterClient {
+       return NewGreeterDubbo3Client(cc)
+}
+
+type GreeterProviderBase struct {
+       proxyImpl protocol.Invoker
+}
+
+func (s *GreeterProviderBase) SetProxyImpl(impl protocol.Invoker) {
+       s.proxyImpl = impl
+}
+
+func (s *GreeterProviderBase) GetProxyImpl() protocol.Invoker {
+       return s.proxyImpl
+}
+
+func (c *GreeterProviderBase) Reference() string {
+       return "greeterImpl"
+}
+
+func _DUBBO_Greeter_SayHello_Handler(srv interface{}, ctx context.Context, dec 
func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, 
error) {
+       in := new(HelloRequest)
+       if err := dec(in); err != nil {
+               return nil, err
+       }
+       base := srv.(dgrpc.Dubbo3GrpcService)
+       args := []interface{}{}
+       args = append(args, in)
+       invo := invocation.NewRPCInvocation("SayHello", args, nil)
+       if interceptor == nil {
+               result := base.GetProxyImpl().Invoke(ctx, invo)
+               return result.Result(), result.Error()
+       }
+       info := &grpc.UnaryServerInfo{
+               Server:     srv,
+               FullMethod: "/protobuf.Greeter/SayHello",
+       }
+       handler := func(ctx context.Context, req interface{}) (interface{}, 
error) {
+               result := base.GetProxyImpl().Invoke(context.Background(), invo)
+               return result.Result(), result.Error()
+       }
+       return interceptor(ctx, in, info, handler)
+}
+
+func _DUBBO_Greeter_SayHelloStream_Handler(srv interface{}, stream 
grpc.ServerStream) error {
+       _, ok := srv.(dgrpc.Dubbo3GrpcService)
+       invo := invocation.NewRPCInvocation("SayHelloStream", nil, nil)
+       if !ok {
+               fmt.Println(invo)
+       }
+       return 
srv.(GreeterServer).SayHelloStream(&greeterSayHelloStreamServer{stream})
+}
+
+func (s *GreeterProviderBase) ServiceDesc() *grpc.ServiceDesc {
+       return &grpc.ServiceDesc{
+               ServiceName: "protobuf.Greeter",
+               HandlerType: (*GreeterServer)(nil),
+               Methods: []grpc.MethodDesc{
+                       {
+                               MethodName: "SayHello",
+                               Handler:    _DUBBO_Greeter_SayHello_Handler,
+                       },
+               },
+               Streams: []grpc.StreamDesc{
+                       {
+                               StreamName:    "SayHelloStream",
+                               Handler:       
_DUBBO_Greeter_SayHelloStream_Handler,
+                               ServerStreams: true,
+                               ClientStreams: true,
+                       },
+               },
+               Metadata: "helloworld.proto",
+       }
+}
diff --git a/generic/protobuf-nacos/client/pkg/helloworld.proto 
b/generic/protobuf-nacos/client/pkg/helloworld.proto
new file mode 100644
index 0000000..dac8ef0
--- /dev/null
+++ b/generic/protobuf-nacos/client/pkg/helloworld.proto
@@ -0,0 +1,38 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+syntax = "proto3";
+package pkg;
+
+// The greeting service definition.
+service Greeter {
+  // Sends a greeting
+  rpc SayHello (HelloRequest) returns (User) {}
+  rpc SayHelloStream (stream HelloRequest) returns (stream User) {}
+}
+
+// The request message containing the user's name.
+message HelloRequest {
+  string name = 1;
+}
+
+// The response message containing the greetings
+message User {
+  string name = 1;
+  string id = 2;
+  int32 age = 3;
+}
diff --git a/generic/protobuf-nacos/client/pkg/protobuf.mk 
b/generic/protobuf-nacos/client/pkg/protobuf.mk
new file mode 100644
index 0000000..beffc5e
--- /dev/null
+++ b/generic/protobuf-nacos/client/pkg/protobuf.mk
@@ -0,0 +1,26 @@
+.PHONY: compile
+PROTOC_GEN_GO := $(GOPATH)/bin/protoc-gen-go
+PROTOC := $(shell which protoc)
+ifeq ($(PROTOC),)
+       PROTOC = must-rebuild
+endif
+
+UNAME := $(shell uname)
+
+$(PROTOC):
+ifeq ($(UNAME), Darwin)
+       brew install protobuf
+endif
+ifeq ($(UNAME), Linux)
+       sudo apt-get install protobuf-compiler
+endif
+
+$(PROTOC_GEN_GO):
+       go get -u 
github.com/apache/dubbo-go/protocol/dubbo3/[email protected]
+
+helloworld.pb.go: helloworld.proto | $(PROTOC_GEN_GO) $(PROTOC)
+       protoc -I . helloworld.proto --dubbo3_out=plugins=grpc+dubbo:.
+
+.PHONY: compile
+compile: helloworld.pb.go
+
diff --git a/generic/protobuf-nacos/server/cmd/server.go 
b/generic/protobuf-nacos/server/cmd/server.go
new file mode 100644
index 0000000..446117f
--- /dev/null
+++ b/generic/protobuf-nacos/server/cmd/server.go
@@ -0,0 +1,81 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package main
+
+import (
+       "fmt"
+       "os"
+       "os/signal"
+       "syscall"
+       "time"
+)
+
+import (
+       _ "dubbo.apache.org/dubbo-go/v3/cluster/cluster_impl"
+       _ "dubbo.apache.org/dubbo-go/v3/cluster/loadbalance"
+       "dubbo.apache.org/dubbo-go/v3/common/logger"
+       _ "dubbo.apache.org/dubbo-go/v3/common/proxy/proxy_factory"
+       "dubbo.apache.org/dubbo-go/v3/config"
+       _ "dubbo.apache.org/dubbo-go/v3/filter/filter_impl"
+       _ "dubbo.apache.org/dubbo-go/v3/protocol/dubbo3"
+       _ "dubbo.apache.org/dubbo-go/v3/registry/nacos"
+       _ "dubbo.apache.org/dubbo-go/v3/registry/protocol"
+       _ "dubbo.apache.org/dubbo-go/v3/registry/zookeeper"
+
+       _ "github.com/dubbogo/triple/pkg/triple"
+)
+
+import (
+       
//"github.com/apache/dubbo-go-samples/general/dubbo3/pb/dubbogo-grpc/server/dubbogo-server/pkg"
+       "github.com/apache/dubbo-go-samples/generic/protobuf-nacos/server/pkg"
+)
+
+var (
+       survivalTimeout = int(3 * time.Second)
+)
+
+// need to setup environment variable "CONF_PROVIDER_FILE_PATH" to 
"conf/server.yml" before run
+func main() {
+       config.SetProviderService(pkg.NewGreeterProvider())
+       config.Load()
+       initSignal()
+}
+
+func initSignal() {
+       signals := make(chan os.Signal, 1)
+       // It is not possible to block SIGKILL or syscall.SIGSTOP
+       signal.Notify(signals, os.Interrupt, os.Kill, syscall.SIGHUP, 
syscall.SIGQUIT, syscall.SIGTERM, syscall.SIGINT)
+       for {
+               sig := <-signals
+               logger.Infof("get signal %s", sig.String())
+               switch sig {
+               case syscall.SIGHUP:
+                       // reload()
+               default:
+                       time.Sleep(time.Second * 5)
+                       time.AfterFunc(time.Duration(survivalTimeout), func() {
+                               logger.Warnf("app exit now by force...")
+                               os.Exit(1)
+                       })
+
+                       // The program exits normally or timeout forcibly exits.
+                       fmt.Println("provider app exit now...")
+                       return
+               }
+       }
+}
diff --git a/generic/protobuf-nacos/server/conf/client.yml 
b/generic/protobuf-nacos/server/conf/client.yml
new file mode 100644
index 0000000..eb65e8c
--- /dev/null
+++ b/generic/protobuf-nacos/server/conf/client.yml
@@ -0,0 +1,22 @@
+# dubbo-go3 client yaml configure file
+# application config (not necessary)
+application:
+  organization: "dubbo.io"
+  name: "greeterImpl"
+  module: "dubbo-go3.0 client"
+  version: "0.0.1"
+  environment: "dev"
+
+# registry config
+registries:
+  "demoZk":
+    protocol: "zookeeper"
+    timeout: "3s"
+    address: "127.0.0.1:2181"
+
+# reference config
+references:
+  "greeterImpl":
+    registry: "demoZk"
+    protocol: "tri"
+    interface: "protobuf.Greeter"
\ No newline at end of file
diff --git a/generic/protobuf-nacos/server/conf/log.yml 
b/generic/protobuf-nacos/server/conf/log.yml
new file mode 100644
index 0000000..8c3f700
--- /dev/null
+++ b/generic/protobuf-nacos/server/conf/log.yml
@@ -0,0 +1,27 @@
+level: "info"
+development: true
+disableCaller: false
+disableStacktrace: false
+sampling:
+encoding: "console"
+
+# encoder
+encoderConfig:
+  messageKey: "message"
+  levelKey: "level"
+  timeKey: "time"
+  nameKey: "logger"
+  callerKey: "caller"
+  stacktraceKey: "stacktrace"
+  lineEnding: ""
+  levelEncoder: "capital"
+  timeEncoder: "iso8601"
+  durationEncoder: "seconds"
+  callerEncoder: "short"
+  nameEncoder: ""
+
+outputPaths:
+  - "stderr"
+errorOutputPaths:
+  - "stderr"
+initialFields:
diff --git a/generic/protobuf-nacos/server/conf/server.yml 
b/generic/protobuf-nacos/server/conf/server.yml
new file mode 100644
index 0000000..6018b37
--- /dev/null
+++ b/generic/protobuf-nacos/server/conf/server.yml
@@ -0,0 +1,28 @@
+# dubbo-go3 server yaml configure file
+# application config (not necessary)
+application:
+  organization: "dubbo.io"
+  name: "GreeterProvider"
+  module: "dubbo-go3.0 server"
+  version: "0.0.1"
+  environment: "dev"
+
+# registry config
+registries:
+  "demoZK":
+    protocol: "nacos"
+    timeout: "3s"
+    address: "console.nacos.io:80"
+
+# service config
+services:
+  "greeterImpl":
+    registry: "demoZK"
+    protocol: "tri"
+    interface: "protobuf.Greeter" # must be compatible with grpc or dubbo-java
+
+# protocol config
+protocols:
+  "tri":
+    name: "tri"
+    port: 20001
diff --git a/generic/protobuf-nacos/server/pkg/greeter.go 
b/generic/protobuf-nacos/server/pkg/greeter.go
new file mode 100644
index 0000000..39777a0
--- /dev/null
+++ b/generic/protobuf-nacos/server/pkg/greeter.go
@@ -0,0 +1,81 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package pkg
+
+import (
+       "context"
+       "fmt"
+)
+
+import (
+       "dubbo.apache.org/dubbo-go/v3/common/logger"
+
+       tripleConstant "github.com/dubbogo/triple/pkg/common/constant"
+)
+
+import (
+       dubbo3 
"github.com/apache/dubbo-go-samples/general/dubbo3/pb/dubbogo-grpc/protobuf/dubbo3"
+)
+
+type GreeterProvider struct {
+       *dubbo3.GreeterProviderBase
+}
+
+func NewGreeterProvider() *GreeterProvider {
+       return &GreeterProvider{
+               GreeterProviderBase: &dubbo3.GreeterProviderBase{},
+       }
+}
+
+func (s *GreeterProvider) SayHelloStream(svr 
dubbo3.Greeter_SayHelloStreamServer) error {
+       c, err := svr.Recv()
+       if err != nil {
+               return err
+       }
+       logger.Infof("Dubbo-go3 GreeterProvider recv 1 user, name = %s\n", 
c.Name)
+       c2, err := svr.Recv()
+       if err != nil {
+               return err
+       }
+       logger.Infof("Dubbo-go3 GreeterProvider recv 2 user, name = %s\n", 
c2.Name)
+
+       svr.Send(&dubbo3.User{
+               Name: "hello " + c.Name,
+               Age:  18,
+               Id:   "123456789",
+       })
+       c3, err := svr.Recv()
+       if err != nil {
+               return err
+       }
+       logger.Infof("Dubbo-go3 GreeterProvider recv 3 user, name = %s\n", 
c3.Name)
+
+       svr.Send(&dubbo3.User{
+               Name: "hello " + c2.Name,
+               Age:  19,
+               Id:   "123456789",
+       })
+       return nil
+}
+
+func (s *GreeterProvider) SayHello(ctx context.Context, in 
*dubbo3.HelloRequest) (*dubbo3.User, error) {
+       logger.Infof("Dubbo3 GreeterProvider get user name = %s\n" + in.Name)
+       fmt.Println("get triple header tri-req-id = ", 
ctx.Value(tripleConstant.TripleCtxKey(tripleConstant.TripleRequestID)))
+       fmt.Println("get triple header tri-service-version = ", 
ctx.Value(tripleConstant.TripleCtxKey(tripleConstant.TripleServiceVersion)))
+       return &dubbo3.User{Name: "Hello " + in.Name, Id: "12345", Age: 21}, nil
+}

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