diff --git a/examples/client/codegen/codegen.go b/examples/client/codegen/codegen.go
new file mode 100644
index 00000000..6bceb605
--- /dev/null
+++ b/examples/client/codegen/codegen.go
@@ -0,0 +1,56 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/micro/go-micro/cmd"
+	example "github.com/micro/go-micro/examples/server/proto/example"
+	"golang.org/x/net/context"
+)
+
+var (
+	cl = example.NewExampleClient(nil)
+)
+
+func call(i int) {
+	rsp, err := cl.Call(context.Background(), &example.Request{Name: "John"})
+	if err != nil {
+		fmt.Println("call err: ", err, rsp)
+		return
+	}
+	fmt.Println("Call:", i, "rsp:", rsp.Msg)
+}
+
+func stream() {
+	stream, err := cl.Stream(context.Background(), &example.StreamingRequest{Count: int64(10)})
+	if err != nil {
+		fmt.Println("err:", err)
+		return
+	}
+	for i := 0; i < 10; i++ {
+		rsp, err := stream.Next()
+		if err != nil {
+			fmt.Println("err:", err)
+			break
+		}
+		fmt.Println("Stream: rsp:", rsp.Count)
+	}
+	if stream.Error() != nil {
+		fmt.Println("stream err:", err)
+		return
+	}
+	if err := stream.Close(); err != nil {
+		fmt.Println("stream close err:", err)
+	}
+}
+
+func main() {
+	cmd.Init()
+
+	fmt.Println("\n--- Call example ---\n")
+	for i := 0; i < 10; i++ {
+		call(i)
+	}
+	fmt.Println("\n--- Streamer example ---\n")
+	stream()
+}
diff --git a/examples/server/proto/example/example.pb.go b/examples/server/proto/example/example.pb.go
index ea9e3f36..d7c10258 100644
--- a/examples/server/proto/example/example.pb.go
+++ b/examples/server/proto/example/example.pb.go
@@ -1,12 +1,12 @@
 // Code generated by protoc-gen-go.
-// source: go-micro/examples/server/proto/example/example.proto
+// source: example.proto
 // DO NOT EDIT!
 
 /*
-Package example is a generated protocol buffer package.
+Package go_micro_srv_example is a generated protocol buffer package.
 
 It is generated from these files:
-	go-micro/examples/server/proto/example/example.proto
+	example.proto
 
 It has these top-level messages:
 	Message
@@ -15,52 +15,164 @@ It has these top-level messages:
 	StreamingRequest
 	StreamingResponse
 */
-package example
+package go_micro_srv_example
 
 import proto "github.com/golang/protobuf/proto"
+import fmt "fmt"
+import math "math"
+
+import (
+	context "golang.org/x/net/context"
+	client "github.com/micro/go-micro/client"
+	server "github.com/micro/go-micro/server"
+)
 
 // Reference imports to suppress errors if they are not otherwise used.
 var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
 
 type Message struct {
 	Say string `protobuf:"bytes,1,opt,name=say" json:"say,omitempty"`
 }
 
-func (m *Message) Reset()         { *m = Message{} }
-func (m *Message) String() string { return proto.CompactTextString(m) }
-func (*Message) ProtoMessage()    {}
+func (m *Message) Reset()                    { *m = Message{} }
+func (m *Message) String() string            { return proto.CompactTextString(m) }
+func (*Message) ProtoMessage()               {}
+func (*Message) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
 
 type Request struct {
 	Name string `protobuf:"bytes,1,opt,name=name" json:"name,omitempty"`
 }
 
-func (m *Request) Reset()         { *m = Request{} }
-func (m *Request) String() string { return proto.CompactTextString(m) }
-func (*Request) ProtoMessage()    {}
+func (m *Request) Reset()                    { *m = Request{} }
+func (m *Request) String() string            { return proto.CompactTextString(m) }
+func (*Request) ProtoMessage()               {}
+func (*Request) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{1} }
 
 type Response struct {
 	Msg string `protobuf:"bytes,1,opt,name=msg" json:"msg,omitempty"`
 }
 
-func (m *Response) Reset()         { *m = Response{} }
-func (m *Response) String() string { return proto.CompactTextString(m) }
-func (*Response) ProtoMessage()    {}
+func (m *Response) Reset()                    { *m = Response{} }
+func (m *Response) String() string            { return proto.CompactTextString(m) }
+func (*Response) ProtoMessage()               {}
+func (*Response) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{2} }
 
 type StreamingRequest struct {
 	Count int64 `protobuf:"varint,1,opt,name=count" json:"count,omitempty"`
 }
 
-func (m *StreamingRequest) Reset()         { *m = StreamingRequest{} }
-func (m *StreamingRequest) String() string { return proto.CompactTextString(m) }
-func (*StreamingRequest) ProtoMessage()    {}
+func (m *StreamingRequest) Reset()                    { *m = StreamingRequest{} }
+func (m *StreamingRequest) String() string            { return proto.CompactTextString(m) }
+func (*StreamingRequest) ProtoMessage()               {}
+func (*StreamingRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{3} }
 
 type StreamingResponse struct {
 	Count int64 `protobuf:"varint,1,opt,name=count" json:"count,omitempty"`
 }
 
-func (m *StreamingResponse) Reset()         { *m = StreamingResponse{} }
-func (m *StreamingResponse) String() string { return proto.CompactTextString(m) }
-func (*StreamingResponse) ProtoMessage()    {}
+func (m *StreamingResponse) Reset()                    { *m = StreamingResponse{} }
+func (m *StreamingResponse) String() string            { return proto.CompactTextString(m) }
+func (*StreamingResponse) ProtoMessage()               {}
+func (*StreamingResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{4} }
 
 func init() {
+	proto.RegisterType((*Message)(nil), "go.micro.srv.example.Message")
+	proto.RegisterType((*Request)(nil), "go.micro.srv.example.Request")
+	proto.RegisterType((*Response)(nil), "go.micro.srv.example.Response")
+	proto.RegisterType((*StreamingRequest)(nil), "go.micro.srv.example.StreamingRequest")
+	proto.RegisterType((*StreamingResponse)(nil), "go.micro.srv.example.StreamingResponse")
+}
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ context.Context
+var _ client.Option
+var _ server.Option
+
+// Client API for Example service
+
+type ExampleClient interface {
+	Call(ctx context.Context, in *Request) (*Response, error)
+	Stream(ctx context.Context, in *StreamingRequest) (Example_StreamClient, error)
+}
+
+type exampleClient struct {
+	c client.Client
+}
+
+func NewExampleClient(c client.Client) ExampleClient {
+	if c == nil {
+		c = client.NewClient()
+	}
+	return &exampleClient{
+		c: c,
+	}
+}
+
+func (c *exampleClient) Call(ctx context.Context, in *Request) (*Response, error) {
+	req := c.c.NewRequest("go.micro.srv.example", "Example.Call", in)
+	out := new(Response)
+	err := c.c.Call(ctx, req, out)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *exampleClient) Stream(ctx context.Context, in *StreamingRequest) (Example_StreamClient, error) {
+	req := c.c.NewRequest("go.micro.srv.example", "Example.Stream", in)
+	outCh := make(chan *StreamingResponse)
+	stream, err := c.c.Stream(ctx, req, outCh)
+	if err != nil {
+		return nil, err
+	}
+	return &exampleStreamClient{stream, outCh}, nil
+}
+
+type Example_StreamClient interface {
+	Next() (*StreamingResponse, error)
+	client.Streamer
+}
+
+type exampleStreamClient struct {
+	client.Streamer
+	next chan *StreamingResponse
+}
+
+func (x *exampleStreamClient) Next() (*StreamingResponse, error) {
+	out, ok := <-x.next
+	if !ok {
+		return nil, fmt.Errorf(`chan closed`)
+	}
+	return out, nil
+}
+
+// Server API for Example service
+
+type ExampleServer interface {
+	Call(context.Context, *Request) (*Response, error)
+	Stream(context.Context, *StreamingRequest, func(*StreamingResponse) error) error
+}
+
+func RegisterExampleServer(s server.Server, srv ExampleServer) {
+	s.Handle(s.NewHandler(srv))
+}
+
+var fileDescriptor0 = []byte{
+	// 211 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x09, 0x6e, 0x88, 0x02, 0xff, 0xe2, 0xe2, 0x4d, 0xad, 0x48, 0xcc,
+	0x2d, 0xc8, 0x49, 0xd5, 0x2b, 0x28, 0xca, 0x2f, 0xc9, 0x17, 0x12, 0x49, 0xcf, 0xd7, 0xcb, 0xcd,
+	0x4c, 0x2e, 0xca, 0xd7, 0x2b, 0x2e, 0x2a, 0xd3, 0x83, 0xca, 0x29, 0x89, 0x71, 0xb1, 0xfb, 0xa6,
+	0x16, 0x17, 0x27, 0xa6, 0xa7, 0x0a, 0x71, 0x73, 0x31, 0x17, 0x27, 0x56, 0x4a, 0x30, 0x2a, 0x30,
+	0x6a, 0x70, 0x2a, 0x89, 0x73, 0xb1, 0x07, 0xa5, 0x16, 0x96, 0xa6, 0x16, 0x97, 0x08, 0xf1, 0x70,
+	0xb1, 0xe4, 0x25, 0xe6, 0xa6, 0xc2, 0x25, 0x38, 0x82, 0x52, 0x8b, 0x0b, 0xf2, 0xf3, 0x8a, 0xc1,
+	0x3a, 0x72, 0x8b, 0xd3, 0xa1, 0x12, 0x8a, 0x5c, 0x02, 0xc1, 0x25, 0x45, 0xa9, 0x89, 0xb9, 0x99,
+	0x79, 0xe9, 0x30, 0xad, 0xbc, 0x5c, 0xac, 0xc9, 0xf9, 0xa5, 0x79, 0x25, 0x60, 0x25, 0xcc, 0x4a,
+	0x4a, 0x5c, 0x82, 0x48, 0x4a, 0xa0, 0x86, 0xa0, 0xaa, 0x31, 0xda, 0xc8, 0xc8, 0xc5, 0xee, 0x0a,
+	0x71, 0x9c, 0x90, 0x3b, 0x17, 0x8b, 0x73, 0x62, 0x4e, 0x8e, 0x90, 0xac, 0x1e, 0x36, 0xb7, 0xeb,
+	0x41, 0x6d, 0x91, 0x92, 0xc3, 0x25, 0x0d, 0xb1, 0x41, 0x89, 0x41, 0x28, 0x96, 0x8b, 0x0d, 0x62,
+	0xb1, 0x90, 0x1a, 0x76, 0xb5, 0xe8, 0x2e, 0x97, 0x52, 0x27, 0xa8, 0x0e, 0x66, 0xb8, 0x01, 0x63,
+	0x12, 0x1b, 0x38, 0x84, 0x8d, 0x01, 0x01, 0x00, 0x00, 0xff, 0xff, 0x71, 0xe5, 0x8f, 0x25, 0x72,
+	0x01, 0x00, 0x00,
 }
diff --git a/examples/server/proto/example/example.proto b/examples/server/proto/example/example.proto
index 23ad31bc..b7dd8748 100644
--- a/examples/server/proto/example/example.proto
+++ b/examples/server/proto/example/example.proto
@@ -1,5 +1,12 @@
 syntax = "proto3";
 
+package go.micro.srv.example;
+
+service Example {
+	rpc Call(Request) returns (Response) {}
+	rpc Stream(StreamingRequest) returns (stream StreamingResponse) {}
+}
+
 message Message {
 	string say = 1;
 }