Added Sync RPC call; it's identical to ListServices for now

registry/handler/handler.go

@@ -74,3 +74,14 @@ func (r *Registry) Watch(ctx context.Context, req *pb.WatchRequest, rsp pb.Regis
 
 	return nil
 }
+
+func (r *Registry) Sync(ctx context.Context, req *pb.SyncRequest, rsp *pb.SyncResponse) error {
+	services, err := r.Registry.ListServices()
+	if err != nil {
+		return errors.InternalServerError("go.micro.registry", err.Error())
+	}
+	for _, srv := range services {
+		rsp.Services = append(rsp.Services, service.ToProto(srv))
+	}
+	return nil
+}

registry/proto/registry.micro.go

@@ -39,6 +39,7 @@ type RegistryService interface {
 	Deregister(ctx context.Context, in *Service, opts ...client.CallOption) (*EmptyResponse, error)
 	ListServices(ctx context.Context, in *ListRequest, opts ...client.CallOption) (*ListResponse, error)
 	Watch(ctx context.Context, in *WatchRequest, opts ...client.CallOption) (Registry_WatchService, error)
+	Sync(ctx context.Context, in *SyncRequest, opts ...client.CallOption) (*SyncResponse, error)
 }
 
 type registryService struct {
@@ -143,6 +144,16 @@ func (x *registryServiceWatch) Recv() (*Result, error) {
 	return m, nil
 }
 
+func (c *registryService) Sync(ctx context.Context, in *SyncRequest, opts ...client.CallOption) (*SyncResponse, error) {
+	req := c.c.NewRequest(c.name, "Registry.Sync", in)
+	out := new(SyncResponse)
+	err := c.c.Call(ctx, req, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 // Server API for Registry service
 
 type RegistryHandler interface {
@@ -151,6 +162,7 @@ type RegistryHandler interface {
 	Deregister(context.Context, *Service, *EmptyResponse) error
 	ListServices(context.Context, *ListRequest, *ListResponse) error
 	Watch(context.Context, *WatchRequest, Registry_WatchStream) error
+	Sync(context.Context, *SyncRequest, *SyncResponse) error
 }
 
 func RegisterRegistryHandler(s server.Server, hdlr RegistryHandler, opts ...server.HandlerOption) error {
@@ -160,6 +172,7 @@ func RegisterRegistryHandler(s server.Server, hdlr RegistryHandler, opts ...serv
 		Deregister(ctx context.Context, in *Service, out *EmptyResponse) error
 		ListServices(ctx context.Context, in *ListRequest, out *ListResponse) error
 		Watch(ctx context.Context, stream server.Stream) error
+		Sync(ctx context.Context, in *SyncRequest, out *SyncResponse) error
 	}
 	type Registry struct {
 		registry
@@ -222,3 +235,7 @@ func (x *registryWatchStream) RecvMsg(m interface{}) error {
 func (x *registryWatchStream) Send(m *Result) error {
 	return x.stream.Send(m)
 }
+
+func (h *registryHandler) Sync(ctx context.Context, in *SyncRequest, out *SyncResponse) error {
+	return h.RegistryHandler.Sync(ctx, in, out)
+}

registry/proto/registry.pb.go

@@ -580,6 +580,77 @@ func (m *WatchRequest) GetService() string {
 	return ""
 }
 
+// SyncRequest to request registry sync
+type SyncRequest struct {
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *SyncRequest) Reset()         { *m = SyncRequest{} }
+func (m *SyncRequest) String() string { return proto.CompactTextString(m) }
+func (*SyncRequest) ProtoMessage()    {}
+func (*SyncRequest) Descriptor() ([]byte, []int) {
+	return fileDescriptor_41af05d40a615591, []int{11}
+}
+
+func (m *SyncRequest) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_SyncRequest.Unmarshal(m, b)
+}
+func (m *SyncRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_SyncRequest.Marshal(b, m, deterministic)
+}
+func (m *SyncRequest) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_SyncRequest.Merge(m, src)
+}
+func (m *SyncRequest) XXX_Size() int {
+	return xxx_messageInfo_SyncRequest.Size(m)
+}
+func (m *SyncRequest) XXX_DiscardUnknown() {
+	xxx_messageInfo_SyncRequest.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_SyncRequest proto.InternalMessageInfo
+
+type SyncResponse struct {
+	Services             []*Service `protobuf:"bytes,1,rep,name=services,proto3" json:"services,omitempty"`
+	XXX_NoUnkeyedLiteral struct{}   `json:"-"`
+	XXX_unrecognized     []byte     `json:"-"`
+	XXX_sizecache        int32      `json:"-"`
+}
+
+func (m *SyncResponse) Reset()         { *m = SyncResponse{} }
+func (m *SyncResponse) String() string { return proto.CompactTextString(m) }
+func (*SyncResponse) ProtoMessage()    {}
+func (*SyncResponse) Descriptor() ([]byte, []int) {
+	return fileDescriptor_41af05d40a615591, []int{12}
+}
+
+func (m *SyncResponse) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_SyncResponse.Unmarshal(m, b)
+}
+func (m *SyncResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_SyncResponse.Marshal(b, m, deterministic)
+}
+func (m *SyncResponse) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_SyncResponse.Merge(m, src)
+}
+func (m *SyncResponse) XXX_Size() int {
+	return xxx_messageInfo_SyncResponse.Size(m)
+}
+func (m *SyncResponse) XXX_DiscardUnknown() {
+	xxx_messageInfo_SyncResponse.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_SyncResponse proto.InternalMessageInfo
+
+func (m *SyncResponse) GetServices() []*Service {
+	if m != nil {
+		return m.Services
+	}
+	return nil
+}
+
 // Event is registry event
 type Event struct {
 	// Event Id
@@ -599,7 +670,7 @@ func (m *Event) Reset()         { *m = Event{} }
 func (m *Event) String() string { return proto.CompactTextString(m) }
 func (*Event) ProtoMessage()    {}
 func (*Event) Descriptor() ([]byte, []int) {
-	return fileDescriptor_41af05d40a615591, []int{11}
+	return fileDescriptor_41af05d40a615591, []int{13}
 }
 
 func (m *Event) XXX_Unmarshal(b []byte) error {
@@ -664,51 +735,55 @@ func init() {
 	proto.RegisterType((*ListRequest)(nil), "go.micro.registry.ListRequest")
 	proto.RegisterType((*ListResponse)(nil), "go.micro.registry.ListResponse")
 	proto.RegisterType((*WatchRequest)(nil), "go.micro.registry.WatchRequest")
+	proto.RegisterType((*SyncRequest)(nil), "go.micro.registry.SyncRequest")
+	proto.RegisterType((*SyncResponse)(nil), "go.micro.registry.SyncResponse")
 	proto.RegisterType((*Event)(nil), "go.micro.registry.Event")
 }
 
 func init() { proto.RegisterFile("registry.proto", fileDescriptor_41af05d40a615591) }
 
 var fileDescriptor_41af05d40a615591 = []byte{
-	// 632 bytes of a gzipped FileDescriptorProto
+	// 661 bytes of a gzipped FileDescriptorProto
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 }

registry/proto/registry.proto

@@ -8,6 +8,7 @@ service Registry {
 	rpc Deregister(Service) returns (EmptyResponse) {};
 	rpc ListServices(ListRequest) returns (ListResponse) {};
 	rpc Watch(WatchRequest) returns (stream Result) {};
+        rpc Sync(SyncRequest) returns (SyncResponse) {};
 }
 
 // Service represents a go-micro service
@@ -72,6 +73,13 @@ message WatchRequest {
 	string service = 1;
 }
 
+// SyncRequest to request registry sync
+message SyncRequest {}
+
+message SyncResponse {
+        repeated Service services = 1;
+}
+
 // EventType defines the type of event
 enum EventType {
         Create = 0;