Merge pull request #15 from moul/dev/moul/go-kit-example

Go-kit example

examples/go-kit/.gitignore

@@ -0,0 +1 @@
+/server

examples/go-kit/Makefile

@@ -0,0 +1,23 @@
+SOURCES :=	$(shell find . -name "*.proto" -not -path ./vendor/\*)
+
+TARGETS_GO :=	$(foreach source, $(SOURCES), $(source)_go)
+TARGETS_TMPL :=	$(foreach source, $(SOURCES), $(source)_tmpl)
+
+service_name =	$(word 2,$(subst /, ,$1))
+
+.PHONY: build
+build: server
+
+server: $(TARGETS_GO) $(TARGETS_TMPL)
+	go build -o server .
+
+$(TARGETS_GO): %_go:
+	protoc --gogo_out=plugins=grpc:. "$*"
+	@mkdir -p services/$(call service_name,$*)/gen/pb
+	@mv ./services/$(call service_name,$*)/$(call service_name,$*).pb.go ./services/$(call service_name,$*)/gen/pb/pb.go
+
+$(TARGETS_TMPL): %_tmpl:
+	@mkdir -p $(dir $*)gen
+	protoc -I. --gotemplate_out=template_dir=templates:services "$*"
+	@rm -rf services/services  # need to investigate why this directory is created
+	gofmt -w $(dir $*)gen

examples/go-kit/main.go

@@ -0,0 +1,82 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"net"
+	"net/http"
+	"os"
+	"os/signal"
+	"syscall"
+
+	"github.com/go-kit/kit/log"
+	"github.com/gorilla/handlers"
+	"google.golang.org/grpc"
+
+	session_svc "github.com/moul/protoc-gen-gotemplate/examples/go-kit/services/session"
+	session_endpoints "github.com/moul/protoc-gen-gotemplate/examples/go-kit/services/session/gen/endpoints"
+	session_pb "github.com/moul/protoc-gen-gotemplate/examples/go-kit/services/session/gen/pb"
+	session_grpctransport "github.com/moul/protoc-gen-gotemplate/examples/go-kit/services/session/gen/transports/grpc"
+	session_httptransport "github.com/moul/protoc-gen-gotemplate/examples/go-kit/services/session/gen/transports/http"
+
+	sprint_svc "github.com/moul/protoc-gen-gotemplate/examples/go-kit/services/sprint"
+	sprint_endpoints "github.com/moul/protoc-gen-gotemplate/examples/go-kit/services/sprint/gen/endpoints"
+	sprint_pb "github.com/moul/protoc-gen-gotemplate/examples/go-kit/services/sprint/gen/pb"
+	sprint_grpctransport "github.com/moul/protoc-gen-gotemplate/examples/go-kit/services/sprint/gen/transports/grpc"
+	sprint_httptransport "github.com/moul/protoc-gen-gotemplate/examples/go-kit/services/sprint/gen/transports/http"
+)
+
+func main() {
+	mux := http.NewServeMux()
+	ctx := context.Background()
+	errc := make(chan error)
+	s := grpc.NewServer()
+	var logger log.Logger
+	{
+		logger = log.NewLogfmtLogger(os.Stdout)
+		logger = log.NewContext(logger).With("ts", log.DefaultTimestampUTC)
+		logger = log.NewContext(logger).With("caller", log.DefaultCaller)
+	}
+
+	// initialize services
+	{
+		svc := session_svc.New()
+		endpoints := session_endpoints.MakeEndpoints(svc)
+		srv := session_grpctransport.MakeGRPCServer(ctx, endpoints)
+		session_pb.RegisterSessionServiceServer(s, srv)
+		session_httptransport.RegisterHandlers(ctx, svc, mux, endpoints)
+	}
+	{
+		svc := sprint_svc.New()
+		endpoints := sprint_endpoints.MakeEndpoints(svc)
+		srv := sprint_grpctransport.MakeGRPCServer(ctx, endpoints)
+		sprint_pb.RegisterSprintServiceServer(s, srv)
+		sprint_httptransport.RegisterHandlers(ctx, svc, mux, endpoints)
+	}
+
+	// start servers
+	go func() {
+		c := make(chan os.Signal, 1)
+		signal.Notify(c, syscall.SIGINT, syscall.SIGTERM)
+		errc <- fmt.Errorf("%s", <-c)
+	}()
+
+	go func() {
+		logger := log.NewContext(logger).With("transport", "HTTP")
+		logger.Log("addr", ":8000")
+		errc <- http.ListenAndServe(":8000", handlers.LoggingHandler(os.Stderr, mux))
+	}()
+
+	go func() {
+		logger := log.NewContext(logger).With("transport", "gRPC")
+		ln, err := net.Listen("tcp", ":9000")
+		if err != nil {
+			errc <- err
+			return
+		}
+		logger.Log("addr", ":9000")
+		errc <- s.Serve(ln)
+	}()
+
+	logger.Log("exit", <-errc)
+}

examples/go-kit/services/session/gen/endpoints/endpoints.go

@@ -0,0 +1,63 @@
+package session_endpoints
+
+import (
+	"fmt"
+	"github.com/go-kit/kit/endpoint"
+	pb "github.com/moul/protoc-gen-gotemplate/examples/go-kit/services/session/gen/pb"
+	context "golang.org/x/net/context"
+)
+
+var _ = fmt.Errorf
+
+type Endpoints struct {
+	LoginEndpoint endpoint.Endpoint
+
+	LogoutEndpoint endpoint.Endpoint
+}
+
+func (e *Endpoints) Login(ctx context.Context, in *pb.LoginRequest) (*pb.LoginResponse, error) {
+	out, err := e.LoginEndpoint(ctx, in)
+	if err != nil {
+		return &pb.LoginResponse{ErrMsg: err.Error()}, err
+	}
+	return out.(*pb.LoginResponse), err
+}
+
+func (e *Endpoints) Logout(ctx context.Context, in *pb.LogoutRequest) (*pb.LogoutResponse, error) {
+	out, err := e.LogoutEndpoint(ctx, in)
+	if err != nil {
+		return &pb.LogoutResponse{ErrMsg: err.Error()}, err
+	}
+	return out.(*pb.LogoutResponse), err
+}
+
+func MakeLoginEndpoint(svc pb.SessionServiceServer) endpoint.Endpoint {
+	return func(ctx context.Context, request interface{}) (interface{}, error) {
+		req := request.(*pb.LoginRequest)
+		rep, err := svc.Login(ctx, req)
+		if err != nil {
+			return &pb.LoginResponse{ErrMsg: err.Error()}, err
+		}
+		return rep, nil
+	}
+}
+
+func MakeLogoutEndpoint(svc pb.SessionServiceServer) endpoint.Endpoint {
+	return func(ctx context.Context, request interface{}) (interface{}, error) {
+		req := request.(*pb.LogoutRequest)
+		rep, err := svc.Logout(ctx, req)
+		if err != nil {
+			return &pb.LogoutResponse{ErrMsg: err.Error()}, err
+		}
+		return rep, nil
+	}
+}
+
+func MakeEndpoints(svc pb.SessionServiceServer) Endpoints {
+	return Endpoints{
+
+		LoginEndpoint: MakeLoginEndpoint(svc),
+
+		LogoutEndpoint: MakeLogoutEndpoint(svc),
+	}
+}

examples/go-kit/services/session/gen/pb/pb.go

@@ -0,0 +1,250 @@
+// Code generated by protoc-gen-gogo.
+// source: services/session/session.proto
+// DO NOT EDIT!
+
+/*
+Package session is a generated protocol buffer package.
+
+It is generated from these files:
+	services/session/session.proto
+
+It has these top-level messages:
+	LoginRequest
+	LoginResponse
+	LogoutRequest
+	LogoutResponse
+*/
+package session
+
+import proto "github.com/gogo/protobuf/proto"
+import fmt "fmt"
+import math "math"
+
+import (
+	context "golang.org/x/net/context"
+	grpc "google.golang.org/grpc"
+)
+
+// Reference imports to suppress errors if they are not otherwise used.
+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.GoGoProtoPackageIsVersion2 // please upgrade the proto package
+
+type LoginRequest struct {
+	Username string `protobuf:"bytes,1,opt,name=username,proto3" json:"username,omitempty"`
+	Password string `protobuf:"bytes,2,opt,name=password,proto3" json:"password,omitempty"`
+}
+
+func (m *LoginRequest) Reset()                    { *m = LoginRequest{} }
+func (m *LoginRequest) String() string            { return proto.CompactTextString(m) }
+func (*LoginRequest) ProtoMessage()               {}
+func (*LoginRequest) Descriptor() ([]byte, []int) { return fileDescriptorSession, []int{0} }
+
+func (m *LoginRequest) GetUsername() string {
+	if m != nil {
+		return m.Username
+	}
+	return ""
+}
+
+func (m *LoginRequest) GetPassword() string {
+	if m != nil {
+		return m.Password
+	}
+	return ""
+}
+
+type LoginResponse struct {
+	Token  string `protobuf:"bytes,1,opt,name=token,proto3" json:"token,omitempty"`
+	ErrMsg string `protobuf:"bytes,2,opt,name=err_msg,json=errMsg,proto3" json:"err_msg,omitempty"`
+}
+
+func (m *LoginResponse) Reset()                    { *m = LoginResponse{} }
+func (m *LoginResponse) String() string            { return proto.CompactTextString(m) }
+func (*LoginResponse) ProtoMessage()               {}
+func (*LoginResponse) Descriptor() ([]byte, []int) { return fileDescriptorSession, []int{1} }
+
+func (m *LoginResponse) GetToken() string {
+	if m != nil {
+		return m.Token
+	}
+	return ""
+}
+
+func (m *LoginResponse) GetErrMsg() string {
+	if m != nil {
+		return m.ErrMsg
+	}
+	return ""
+}
+
+type LogoutRequest struct {
+	Token string `protobuf:"bytes,1,opt,name=token,proto3" json:"token,omitempty"`
+}
+
+func (m *LogoutRequest) Reset()                    { *m = LogoutRequest{} }
+func (m *LogoutRequest) String() string            { return proto.CompactTextString(m) }
+func (*LogoutRequest) ProtoMessage()               {}
+func (*LogoutRequest) Descriptor() ([]byte, []int) { return fileDescriptorSession, []int{2} }
+
+func (m *LogoutRequest) GetToken() string {
+	if m != nil {
+		return m.Token
+	}
+	return ""
+}
+
+type LogoutResponse struct {
+	ErrMsg string `protobuf:"bytes,1,opt,name=err_msg,json=errMsg,proto3" json:"err_msg,omitempty"`
+}
+
+func (m *LogoutResponse) Reset()                    { *m = LogoutResponse{} }
+func (m *LogoutResponse) String() string            { return proto.CompactTextString(m) }
+func (*LogoutResponse) ProtoMessage()               {}
+func (*LogoutResponse) Descriptor() ([]byte, []int) { return fileDescriptorSession, []int{3} }
+
+func (m *LogoutResponse) GetErrMsg() string {
+	if m != nil {
+		return m.ErrMsg
+	}
+	return ""
+}
+
+func init() {
+	proto.RegisterType((*LoginRequest)(nil), "session.LoginRequest")
+	proto.RegisterType((*LoginResponse)(nil), "session.LoginResponse")
+	proto.RegisterType((*LogoutRequest)(nil), "session.LogoutRequest")
+	proto.RegisterType((*LogoutResponse)(nil), "session.LogoutResponse")
+}
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ context.Context
+var _ grpc.ClientConn
+
+// 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.SupportPackageIsVersion4
+
+// Client API for SessionService service
+
+type SessionServiceClient interface {
+	Login(ctx context.Context, in *LoginRequest, opts ...grpc.CallOption) (*LoginResponse, error)
+	Logout(ctx context.Context, in *LogoutRequest, opts ...grpc.CallOption) (*LogoutResponse, error)
+}
+
+type sessionServiceClient struct {
+	cc *grpc.ClientConn
+}
+
+func NewSessionServiceClient(cc *grpc.ClientConn) SessionServiceClient {
+	return &sessionServiceClient{cc}
+}
+
+func (c *sessionServiceClient) Login(ctx context.Context, in *LoginRequest, opts ...grpc.CallOption) (*LoginResponse, error) {
+	out := new(LoginResponse)
+	err := grpc.Invoke(ctx, "/session.SessionService/Login", in, out, c.cc, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *sessionServiceClient) Logout(ctx context.Context, in *LogoutRequest, opts ...grpc.CallOption) (*LogoutResponse, error) {
+	out := new(LogoutResponse)
+	err := grpc.Invoke(ctx, "/session.SessionService/Logout", in, out, c.cc, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// Server API for SessionService service
+
+type SessionServiceServer interface {
+	Login(context.Context, *LoginRequest) (*LoginResponse, error)
+	Logout(context.Context, *LogoutRequest) (*LogoutResponse, error)
+}
+
+func RegisterSessionServiceServer(s *grpc.Server, srv SessionServiceServer) {
+	s.RegisterService(&_SessionService_serviceDesc, srv)
+}
+
+func _SessionService_Login_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(LoginRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(SessionServiceServer).Login(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/session.SessionService/Login",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(SessionServiceServer).Login(ctx, req.(*LoginRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _SessionService_Logout_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(LogoutRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(SessionServiceServer).Logout(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/session.SessionService/Logout",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(SessionServiceServer).Logout(ctx, req.(*LogoutRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+var _SessionService_serviceDesc = grpc.ServiceDesc{
+	ServiceName: "session.SessionService",
+	HandlerType: (*SessionServiceServer)(nil),
+	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "Login",
+			Handler:    _SessionService_Login_Handler,
+		},
+		{
+			MethodName: "Logout",
+			Handler:    _SessionService_Logout_Handler,
+		},
+	},
+	Streams:  []grpc.StreamDesc{},
+	Metadata: "services/session/session.proto",
+}
+
+func init() { proto.RegisterFile("services/session/session.proto", fileDescriptorSession) }
+
+var fileDescriptorSession = []byte{
+	// 231 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x09, 0x6e, 0x88, 0x02, 0xff, 0x6c, 0x50, 0xcb, 0x4a, 0xc5, 0x30,
+	0x10, 0x35, 0xc2, 0xed, 0xd5, 0x41, 0xef, 0x62, 0x50, 0x6f, 0xe9, 0x42, 0x24, 0x20, 0xe8, 0xa6,
+	0x82, 0x6e, 0x04, 0xc1, 0xa5, 0x2b, 0xdd, 0xb4, 0x1f, 0x20, 0x55, 0x87, 0x52, 0xa4, 0x99, 0x3a,
+	0x93, 0xea, 0x27, 0xf8, 0xdb, 0x62, 0x93, 0x68, 0x7d, 0xac, 0xc2, 0xc9, 0xcc, 0x79, 0xcc, 0x81,
+	0x43, 0x25, 0x79, 0xed, 0x1e, 0x49, 0xcf, 0x94, 0x54, 0x3b, 0x76, 0xe9, 0x2d, 0x07, 0x61, 0xcf,
+	0xb8, 0x8c, 0xd0, 0xde, 0xc0, 0xce, 0x2d, 0xb7, 0x9d, 0xab, 0xe8, 0x65, 0x24, 0xf5, 0x58, 0xc0,
+	0xd6, 0xa8, 0x24, 0xae, 0xe9, 0x29, 0x37, 0x47, 0xe6, 0x64, 0xbb, 0xfa, 0xc2, 0x9f, 0xb3, 0xa1,
+	0x51, 0x7d, 0x63, 0x79, 0xca, 0x37, 0xc3, 0x2c, 0x61, 0x7b, 0x0d, 0xbb, 0x51, 0x47, 0x07, 0x76,
+	0x4a, 0xb8, 0x07, 0x0b, 0xcf, 0xcf, 0xe4, 0xa2, 0x4a, 0x00, 0xb8, 0x86, 0x25, 0x89, 0xdc, 0xf7,
+	0xda, 0x46, 0x85, 0x8c, 0x44, 0xee, 0xb4, 0xb5, 0xc7, 0x13, 0x9f, 0x47, 0x9f, 0x82, 0xfc, 0xcb,
+	0xb7, 0xa7, 0xb0, 0x4a, 0x6b, 0xd1, 0x67, 0xa6, 0x68, 0xe6, 0x8a, 0xe7, 0xef, 0x06, 0x56, 0x75,
+	0xb8, 0xb2, 0x0e, 0x65, 0xe0, 0x25, 0x2c, 0xa6, 0x90, 0xb8, 0x5f, 0xa6, 0x3a, 0xe6, 0xc7, 0x17,
+	0x07, 0xbf, 0xbf, 0x83, 0x87, 0xdd, 0xc0, 0x2b, 0xc8, 0x82, 0x2f, 0xfe, 0xd8, 0xf9, 0xce, 0x5b,
+	0xac, 0xff, 0xfc, 0x27, 0xf2, 0x43, 0x36, 0x75, 0x7e, 0xf1, 0x11, 0x00, 0x00, 0xff, 0xff, 0xc7,
+	0x91, 0x50, 0x79, 0x95, 0x01, 0x00, 0x00,
+}

examples/go-kit/services/session/gen/transports/grpc/grpc.go

@@ -0,0 +1,75 @@
+package session_grpctransport
+
+import (
+	"fmt"
+
+	grpctransport "github.com/go-kit/kit/transport/grpc"
+	endpoint "github.com/moul/protoc-gen-gotemplate/examples/go-kit/services/session/gen/endpoints"
+	pb "github.com/moul/protoc-gen-gotemplate/examples/go-kit/services/session/gen/pb"
+	context "golang.org/x/net/context"
+)
+
+// avoid import errors
+var _ = fmt.Errorf
+
+func MakeGRPCServer(ctx context.Context, endpoints endpoint.Endpoints) pb.SessionServiceServer {
+	options := []grpctransport.ServerOption{}
+	return &grpcServer{
+
+		login: grpctransport.NewServer(
+			ctx,
+			endpoints.LoginEndpoint,
+			decodeLoginRequest,
+			encodeLoginResponse,
+			options...,
+		),
+
+		logout: grpctransport.NewServer(
+			ctx,
+			endpoints.LogoutEndpoint,
+			decodeLogoutRequest,
+			encodeLogoutResponse,
+			options...,
+		),
+	}
+}
+
+type grpcServer struct {
+	login grpctransport.Handler
+
+	logout grpctransport.Handler
+}
+
+func (s *grpcServer) Login(ctx context.Context, req *pb.LoginRequest) (*pb.LoginResponse, error) {
+	_, rep, err := s.login.ServeGRPC(ctx, req)
+	if err != nil {
+		return nil, err
+	}
+	return rep.(*pb.LoginResponse), nil
+}
+
+func decodeLoginRequest(ctx context.Context, grpcReq interface{}) (interface{}, error) {
+	return grpcReq, nil
+}
+
+func encodeLoginResponse(ctx context.Context, response interface{}) (interface{}, error) {
+	resp := response.(*pb.LoginResponse)
+	return resp, nil
+}
+
+func (s *grpcServer) Logout(ctx context.Context, req *pb.LogoutRequest) (*pb.LogoutResponse, error) {
+	_, rep, err := s.logout.ServeGRPC(ctx, req)
+	if err != nil {
+		return nil, err
+	}
+	return rep.(*pb.LogoutResponse), nil
+}
+
+func decodeLogoutRequest(ctx context.Context, grpcReq interface{}) (interface{}, error) {
+	return grpcReq, nil
+}
+
+func encodeLogoutResponse(ctx context.Context, response interface{}) (interface{}, error) {
+	resp := response.(*pb.LogoutResponse)
+	return resp, nil
+}

examples/go-kit/services/session/gen/transports/http/http.go

@@ -0,0 +1,68 @@
+package session_httptransport
+
+import (
+	"encoding/json"
+	context "golang.org/x/net/context"
+	"log"
+	"net/http"
+
+	gokit_endpoint "github.com/go-kit/kit/endpoint"
+	httptransport "github.com/go-kit/kit/transport/http"
+	endpoints "github.com/moul/protoc-gen-gotemplate/examples/go-kit/services/session/gen/endpoints"
+	pb "github.com/moul/protoc-gen-gotemplate/examples/go-kit/services/session/gen/pb"
+)
+
+func MakeLoginHandler(ctx context.Context, svc pb.SessionServiceServer, endpoint gokit_endpoint.Endpoint) *httptransport.Server {
+	return httptransport.NewServer(
+		ctx,
+		endpoint,
+		decodeLoginRequest,
+		encodeLoginResponse,
+		[]httptransport.ServerOption{}...,
+	)
+}
+
+func decodeLoginRequest(ctx context.Context, r *http.Request) (interface{}, error) {
+	var req pb.LoginRequest
+	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+		return nil, err
+	}
+	return &req, nil
+}
+
+func encodeLoginResponse(ctx context.Context, w http.ResponseWriter, response interface{}) error {
+	return json.NewEncoder(w).Encode(response)
+}
+
+func MakeLogoutHandler(ctx context.Context, svc pb.SessionServiceServer, endpoint gokit_endpoint.Endpoint) *httptransport.Server {
+	return httptransport.NewServer(
+		ctx,
+		endpoint,
+		decodeLogoutRequest,
+		encodeLogoutResponse,
+		[]httptransport.ServerOption{}...,
+	)
+}
+
+func decodeLogoutRequest(ctx context.Context, r *http.Request) (interface{}, error) {
+	var req pb.LogoutRequest
+	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+		return nil, err
+	}
+	return &req, nil
+}
+
+func encodeLogoutResponse(ctx context.Context, w http.ResponseWriter, response interface{}) error {
+	return json.NewEncoder(w).Encode(response)
+}
+
+func RegisterHandlers(ctx context.Context, svc pb.SessionServiceServer, mux *http.ServeMux, endpoints endpoints.Endpoints) error {
+
+	log.Println("new HTTP endpoint: \"/Login\" (service=Session)")
+	mux.Handle("/Login", MakeLoginHandler(ctx, svc, endpoints.LoginEndpoint))
+
+	log.Println("new HTTP endpoint: \"/Logout\" (service=Session)")
+	mux.Handle("/Logout", MakeLogoutHandler(ctx, svc, endpoints.LogoutEndpoint))
+
+	return nil
+}

examples/go-kit/services/session/service.go

@@ -0,0 +1,23 @@
+package sessionsvc
+
+import (
+	"fmt"
+
+	"golang.org/x/net/context"
+
+	pb "github.com/moul/protoc-gen-gotemplate/examples/go-kit/services/session/gen/pb"
+)
+
+type Service struct{}
+
+func New() pb.SessionServiceServer {
+	return &Service{}
+}
+
+func (svc *Service) Login(ctx context.Context, in *pb.LoginRequest) (*pb.LoginResponse, error) {
+	return nil, fmt.Errorf("not implemented")
+}
+
+func (svc *Service) Logout(ctx context.Context, in *pb.LogoutRequest) (*pb.LogoutResponse, error) {
+	return nil, fmt.Errorf("not implemented")
+}

examples/go-kit/services/session/session.proto

@@ -0,0 +1,26 @@
+syntax = "proto3";
+
+package session;
+
+service SessionService {
+  rpc Login(LoginRequest) returns (LoginResponse) {}
+  rpc Logout(LogoutRequest) returns (LogoutResponse) {}
+}
+
+message LoginRequest {
+  string username = 1;
+  string password = 2;
+}
+
+message LoginResponse {
+  string token = 1;
+  string err_msg = 2;
+}
+
+message LogoutRequest {
+  string token = 1;
+}
+
+message LogoutResponse {
+  string err_msg = 1;
+}

examples/go-kit/services/sprint/gen/endpoints/endpoints.go

@@ -0,0 +1,86 @@
+package sprint_endpoints
+
+import (
+	"fmt"
+	"github.com/go-kit/kit/endpoint"
+	pb "github.com/moul/protoc-gen-gotemplate/examples/go-kit/services/sprint/gen/pb"
+	context "golang.org/x/net/context"
+)
+
+var _ = fmt.Errorf
+
+type Endpoints struct {
+	AddSprintEndpoint endpoint.Endpoint
+
+	CloseSprintEndpoint endpoint.Endpoint
+
+	GetSprintEndpoint endpoint.Endpoint
+}
+
+func (e *Endpoints) AddSprint(ctx context.Context, in *pb.AddSprintRequest) (*pb.AddSprintResponse, error) {
+	out, err := e.AddSprintEndpoint(ctx, in)
+	if err != nil {
+		return &pb.AddSprintResponse{ErrMsg: err.Error()}, err
+	}
+	return out.(*pb.AddSprintResponse), err
+}
+
+func (e *Endpoints) CloseSprint(ctx context.Context, in *pb.CloseSprintRequest) (*pb.CloseSprintResponse, error) {
+	out, err := e.CloseSprintEndpoint(ctx, in)
+	if err != nil {
+		return &pb.CloseSprintResponse{ErrMsg: err.Error()}, err
+	}
+	return out.(*pb.CloseSprintResponse), err
+}
+
+func (e *Endpoints) GetSprint(ctx context.Context, in *pb.GetSprintRequest) (*pb.GetSprintResponse, error) {
+	out, err := e.GetSprintEndpoint(ctx, in)
+	if err != nil {
+		return &pb.GetSprintResponse{ErrMsg: err.Error()}, err
+	}
+	return out.(*pb.GetSprintResponse), err
+}
+
+func MakeAddSprintEndpoint(svc pb.SprintServiceServer) endpoint.Endpoint {
+	return func(ctx context.Context, request interface{}) (interface{}, error) {
+		req := request.(*pb.AddSprintRequest)
+		rep, err := svc.AddSprint(ctx, req)
+		if err != nil {
+			return &pb.AddSprintResponse{ErrMsg: err.Error()}, err
+		}
+		return rep, nil
+	}
+}
+
+func MakeCloseSprintEndpoint(svc pb.SprintServiceServer) endpoint.Endpoint {
+	return func(ctx context.Context, request interface{}) (interface{}, error) {
+		req := request.(*pb.CloseSprintRequest)
+		rep, err := svc.CloseSprint(ctx, req)
+		if err != nil {
+			return &pb.CloseSprintResponse{ErrMsg: err.Error()}, err
+		}
+		return rep, nil
+	}
+}
+
+func MakeGetSprintEndpoint(svc pb.SprintServiceServer) endpoint.Endpoint {
+	return func(ctx context.Context, request interface{}) (interface{}, error) {
+		req := request.(*pb.GetSprintRequest)
+		rep, err := svc.GetSprint(ctx, req)
+		if err != nil {
+			return &pb.GetSprintResponse{ErrMsg: err.Error()}, err
+		}
+		return rep, nil
+	}
+}
+
+func MakeEndpoints(svc pb.SprintServiceServer) Endpoints {
+	return Endpoints{
+
+		AddSprintEndpoint: MakeAddSprintEndpoint(svc),
+
+		CloseSprintEndpoint: MakeCloseSprintEndpoint(svc),
+
+		GetSprintEndpoint: MakeGetSprintEndpoint(svc),
+	}
+}

examples/go-kit/services/sprint/gen/pb/pb.go

@@ -0,0 +1,357 @@
+// Code generated by protoc-gen-gogo.
+// source: services/sprint/sprint.proto
+// DO NOT EDIT!
+
+/*
+Package sprint is a generated protocol buffer package.
+
+It is generated from these files:
+	services/sprint/sprint.proto
+
+It has these top-level messages:
+	AddSprintRequest
+	AddSprintResponse
+	CloseSprintRequest
+	CloseSprintResponse
+	GetSprintRequest
+	GetSprintResponse
+	Sprint
+*/
+package sprint
+
+import proto "github.com/gogo/protobuf/proto"
+import fmt "fmt"
+import math "math"
+
+import (
+	context "golang.org/x/net/context"
+	grpc "google.golang.org/grpc"
+)
+
+// Reference imports to suppress errors if they are not otherwise used.
+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.GoGoProtoPackageIsVersion2 // please upgrade the proto package
+
+type AddSprintRequest struct {
+	Name string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
+}
+
+func (m *AddSprintRequest) Reset()                    { *m = AddSprintRequest{} }
+func (m *AddSprintRequest) String() string            { return proto.CompactTextString(m) }
+func (*AddSprintRequest) ProtoMessage()               {}
+func (*AddSprintRequest) Descriptor() ([]byte, []int) { return fileDescriptorSprint, []int{0} }
+
+func (m *AddSprintRequest) GetName() string {
+	if m != nil {
+		return m.Name
+	}
+	return ""
+}
+
+type AddSprintResponse struct {
+	Sprint *Sprint `protobuf:"bytes,1,opt,name=sprint" json:"sprint,omitempty"`
+	ErrMsg string  `protobuf:"bytes,2,opt,name=err_msg,json=errMsg,proto3" json:"err_msg,omitempty"`
+}
+
+func (m *AddSprintResponse) Reset()                    { *m = AddSprintResponse{} }
+func (m *AddSprintResponse) String() string            { return proto.CompactTextString(m) }
+func (*AddSprintResponse) ProtoMessage()               {}
+func (*AddSprintResponse) Descriptor() ([]byte, []int) { return fileDescriptorSprint, []int{1} }
+
+func (m *AddSprintResponse) GetSprint() *Sprint {
+	if m != nil {
+		return m.Sprint
+	}
+	return nil
+}
+
+func (m *AddSprintResponse) GetErrMsg() string {
+	if m != nil {
+		return m.ErrMsg
+	}
+	return ""
+}
+
+type CloseSprintRequest struct {
+	Id string `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
+}
+
+func (m *CloseSprintRequest) Reset()                    { *m = CloseSprintRequest{} }
+func (m *CloseSprintRequest) String() string            { return proto.CompactTextString(m) }
+func (*CloseSprintRequest) ProtoMessage()               {}
+func (*CloseSprintRequest) Descriptor() ([]byte, []int) { return fileDescriptorSprint, []int{2} }
+
+func (m *CloseSprintRequest) GetId() string {
+	if m != nil {
+		return m.Id
+	}
+	return ""
+}
+
+type CloseSprintResponse struct {
+	ErrMsg string `protobuf:"bytes,1,opt,name=err_msg,json=errMsg,proto3" json:"err_msg,omitempty"`
+}
+
+func (m *CloseSprintResponse) Reset()                    { *m = CloseSprintResponse{} }
+func (m *CloseSprintResponse) String() string            { return proto.CompactTextString(m) }
+func (*CloseSprintResponse) ProtoMessage()               {}
+func (*CloseSprintResponse) Descriptor() ([]byte, []int) { return fileDescriptorSprint, []int{3} }
+
+func (m *CloseSprintResponse) GetErrMsg() string {
+	if m != nil {
+		return m.ErrMsg
+	}
+	return ""
+}
+
+type GetSprintRequest struct {
+	Id string `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
+}
+
+func (m *GetSprintRequest) Reset()                    { *m = GetSprintRequest{} }
+func (m *GetSprintRequest) String() string            { return proto.CompactTextString(m) }
+func (*GetSprintRequest) ProtoMessage()               {}
+func (*GetSprintRequest) Descriptor() ([]byte, []int) { return fileDescriptorSprint, []int{4} }
+
+func (m *GetSprintRequest) GetId() string {
+	if m != nil {
+		return m.Id
+	}
+	return ""
+}
+
+type GetSprintResponse struct {
+	Sprint *Sprint `protobuf:"bytes,1,opt,name=sprint" json:"sprint,omitempty"`
+	ErrMsg string  `protobuf:"bytes,2,opt,name=err_msg,json=errMsg,proto3" json:"err_msg,omitempty"`
+}
+
+func (m *GetSprintResponse) Reset()                    { *m = GetSprintResponse{} }
+func (m *GetSprintResponse) String() string            { return proto.CompactTextString(m) }
+func (*GetSprintResponse) ProtoMessage()               {}
+func (*GetSprintResponse) Descriptor() ([]byte, []int) { return fileDescriptorSprint, []int{5} }
+
+func (m *GetSprintResponse) GetSprint() *Sprint {
+	if m != nil {
+		return m.Sprint
+	}
+	return nil
+}
+
+func (m *GetSprintResponse) GetErrMsg() string {
+	if m != nil {
+		return m.ErrMsg
+	}
+	return ""
+}
+
+type Sprint struct {
+	Id        string `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
+	CreatedAt uint32 `protobuf:"varint,2,opt,name=created_at,json=createdAt,proto3" json:"created_at,omitempty"`
+	Name      string `protobuf:"bytes,3,opt,name=name,proto3" json:"name,omitempty"`
+}
+
+func (m *Sprint) Reset()                    { *m = Sprint{} }
+func (m *Sprint) String() string            { return proto.CompactTextString(m) }
+func (*Sprint) ProtoMessage()               {}
+func (*Sprint) Descriptor() ([]byte, []int) { return fileDescriptorSprint, []int{6} }
+
+func (m *Sprint) GetId() string {
+	if m != nil {
+		return m.Id
+	}
+	return ""
+}
+
+func (m *Sprint) GetCreatedAt() uint32 {
+	if m != nil {
+		return m.CreatedAt
+	}
+	return 0
+}
+
+func (m *Sprint) GetName() string {
+	if m != nil {
+		return m.Name
+	}
+	return ""
+}
+
+func init() {
+	proto.RegisterType((*AddSprintRequest)(nil), "sprint.AddSprintRequest")
+	proto.RegisterType((*AddSprintResponse)(nil), "sprint.AddSprintResponse")
+	proto.RegisterType((*CloseSprintRequest)(nil), "sprint.CloseSprintRequest")
+	proto.RegisterType((*CloseSprintResponse)(nil), "sprint.CloseSprintResponse")
+	proto.RegisterType((*GetSprintRequest)(nil), "sprint.GetSprintRequest")
+	proto.RegisterType((*GetSprintResponse)(nil), "sprint.GetSprintResponse")
+	proto.RegisterType((*Sprint)(nil), "sprint.Sprint")
+}
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ context.Context
+var _ grpc.ClientConn
+
+// 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.SupportPackageIsVersion4
+
+// Client API for SprintService service
+
+type SprintServiceClient interface {
+	AddSprint(ctx context.Context, in *AddSprintRequest, opts ...grpc.CallOption) (*AddSprintResponse, error)
+	CloseSprint(ctx context.Context, in *CloseSprintRequest, opts ...grpc.CallOption) (*CloseSprintResponse, error)
+	GetSprint(ctx context.Context, in *GetSprintRequest, opts ...grpc.CallOption) (*GetSprintResponse, error)
+}
+
+type sprintServiceClient struct {
+	cc *grpc.ClientConn
+}
+
+func NewSprintServiceClient(cc *grpc.ClientConn) SprintServiceClient {
+	return &sprintServiceClient{cc}
+}
+
+func (c *sprintServiceClient) AddSprint(ctx context.Context, in *AddSprintRequest, opts ...grpc.CallOption) (*AddSprintResponse, error) {
+	out := new(AddSprintResponse)
+	err := grpc.Invoke(ctx, "/sprint.SprintService/AddSprint", in, out, c.cc, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *sprintServiceClient) CloseSprint(ctx context.Context, in *CloseSprintRequest, opts ...grpc.CallOption) (*CloseSprintResponse, error) {
+	out := new(CloseSprintResponse)
+	err := grpc.Invoke(ctx, "/sprint.SprintService/CloseSprint", in, out, c.cc, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *sprintServiceClient) GetSprint(ctx context.Context, in *GetSprintRequest, opts ...grpc.CallOption) (*GetSprintResponse, error) {
+	out := new(GetSprintResponse)
+	err := grpc.Invoke(ctx, "/sprint.SprintService/GetSprint", in, out, c.cc, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// Server API for SprintService service
+
+type SprintServiceServer interface {
+	AddSprint(context.Context, *AddSprintRequest) (*AddSprintResponse, error)
+	CloseSprint(context.Context, *CloseSprintRequest) (*CloseSprintResponse, error)
+	GetSprint(context.Context, *GetSprintRequest) (*GetSprintResponse, error)
+}
+
+func RegisterSprintServiceServer(s *grpc.Server, srv SprintServiceServer) {
+	s.RegisterService(&_SprintService_serviceDesc, srv)
+}
+
+func _SprintService_AddSprint_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(AddSprintRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(SprintServiceServer).AddSprint(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/sprint.SprintService/AddSprint",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(SprintServiceServer).AddSprint(ctx, req.(*AddSprintRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _SprintService_CloseSprint_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(CloseSprintRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(SprintServiceServer).CloseSprint(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/sprint.SprintService/CloseSprint",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(SprintServiceServer).CloseSprint(ctx, req.(*CloseSprintRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _SprintService_GetSprint_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(GetSprintRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(SprintServiceServer).GetSprint(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/sprint.SprintService/GetSprint",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(SprintServiceServer).GetSprint(ctx, req.(*GetSprintRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+var _SprintService_serviceDesc = grpc.ServiceDesc{
+	ServiceName: "sprint.SprintService",
+	HandlerType: (*SprintServiceServer)(nil),
+	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "AddSprint",
+			Handler:    _SprintService_AddSprint_Handler,
+		},
+		{
+			MethodName: "CloseSprint",
+			Handler:    _SprintService_CloseSprint_Handler,
+		},
+		{
+			MethodName: "GetSprint",
+			Handler:    _SprintService_GetSprint_Handler,
+		},
+	},
+	Streams:  []grpc.StreamDesc{},
+	Metadata: "services/sprint/sprint.proto",
+}
+
+func init() { proto.RegisterFile("services/sprint/sprint.proto", fileDescriptorSprint) }
+
+var fileDescriptorSprint = []byte{
+	// 290 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x09, 0x6e, 0x88, 0x02, 0xff, 0xac, 0x52, 0x4d, 0x4b, 0xc3, 0x40,
+	0x10, 0x6d, 0xaa, 0x44, 0x32, 0xa5, 0xa5, 0x1d, 0x0f, 0xc6, 0xa8, 0x20, 0x8b, 0x14, 0x4f, 0x11,
+	0xea, 0x2f, 0x68, 0x3d, 0x28, 0x88, 0x97, 0xb4, 0xf7, 0x12, 0xbb, 0x43, 0x09, 0xd8, 0x24, 0xee,
+	0xac, 0xfe, 0x5f, 0xff, 0x89, 0xb0, 0xbb, 0xcd, 0x57, 0x8b, 0x27, 0x4f, 0xc9, 0xec, 0xbc, 0x7d,
+	0x6f, 0xe6, 0xbd, 0x85, 0x6b, 0x26, 0xf5, 0x9d, 0x6d, 0x88, 0x1f, 0xb8, 0x54, 0x59, 0xae, 0xdd,
+	0x27, 0x2e, 0x55, 0xa1, 0x0b, 0xf4, 0x6d, 0x25, 0xa6, 0x30, 0x9e, 0x4b, 0xb9, 0x34, 0x45, 0x42,
+	0x9f, 0x5f, 0xc4, 0x1a, 0x11, 0x4e, 0xf3, 0x74, 0x47, 0xa1, 0x77, 0xeb, 0xdd, 0x07, 0x89, 0xf9,
+	0x17, 0x2b, 0x98, 0x34, 0x70, 0x5c, 0x16, 0x39, 0x13, 0x4e, 0xc1, 0xd1, 0x18, 0xe8, 0x60, 0x36,
+	0x8a, 0x9d, 0x86, 0xc3, 0xb9, 0x2e, 0x5e, 0xc0, 0x19, 0x29, 0xb5, 0xde, 0xf1, 0x36, 0xec, 0x1b,
+	0x4e, 0x9f, 0x94, 0x7a, 0xe3, 0xad, 0xb8, 0x03, 0x7c, 0xfa, 0x28, 0x98, 0xda, 0xfa, 0x23, 0xe8,
+	0x67, 0xd2, 0xa9, 0xf7, 0x33, 0x29, 0x62, 0x38, 0x6f, 0xa1, 0x9c, 0x7a, 0x83, 0xd5, 0x6b, 0xb1,
+	0x0a, 0x18, 0x3f, 0x93, 0xfe, 0x9b, 0x73, 0x05, 0x93, 0x06, 0xe6, 0xbf, 0xf6, 0x79, 0x05, 0xdf,
+	0x42, 0xbb, 0x7a, 0x78, 0x03, 0xb0, 0x51, 0x94, 0x6a, 0x92, 0xeb, 0x54, 0x9b, 0x5b, 0xc3, 0x24,
+	0x70, 0x27, 0xf3, 0xda, 0xf2, 0x93, 0xda, 0xf2, 0xd9, 0x8f, 0x07, 0x43, 0xcb, 0xb6, 0xb4, 0x49,
+	0xe2, 0x02, 0x82, 0x2a, 0x04, 0x0c, 0xf7, 0xc3, 0x75, 0xf3, 0x8b, 0x2e, 0x8f, 0x74, 0xec, 0x86,
+	0xa2, 0x87, 0x2f, 0x30, 0x68, 0x98, 0x89, 0xd1, 0x1e, 0x7b, 0x98, 0x43, 0x74, 0x75, 0xb4, 0x57,
+	0x31, 0x2d, 0x20, 0xa8, 0x2c, 0xac, 0xa7, 0xe9, 0x3a, 0x5f, 0x4f, 0x73, 0xe0, 0xb7, 0xe8, 0xbd,
+	0xfb, 0xe6, 0x35, 0x3e, 0xfe, 0x06, 0x00, 0x00, 0xff, 0xff, 0xf0, 0x9e, 0xb2, 0x1e, 0xad, 0x02,
+	0x00, 0x00,
+}

examples/go-kit/services/sprint/gen/transports/grpc/grpc.go

@@ -0,0 +1,102 @@
+package sprint_grpctransport
+
+import (
+	"fmt"
+
+	grpctransport "github.com/go-kit/kit/transport/grpc"
+	endpoint "github.com/moul/protoc-gen-gotemplate/examples/go-kit/services/sprint/gen/endpoints"
+	pb "github.com/moul/protoc-gen-gotemplate/examples/go-kit/services/sprint/gen/pb"
+	context "golang.org/x/net/context"
+)
+
+// avoid import errors
+var _ = fmt.Errorf
+
+func MakeGRPCServer(ctx context.Context, endpoints endpoint.Endpoints) pb.SprintServiceServer {
+	options := []grpctransport.ServerOption{}
+	return &grpcServer{
+
+		addsprint: grpctransport.NewServer(
+			ctx,
+			endpoints.AddSprintEndpoint,
+			decodeAddSprintRequest,
+			encodeAddSprintResponse,
+			options...,
+		),
+
+		closesprint: grpctransport.NewServer(
+			ctx,
+			endpoints.CloseSprintEndpoint,
+			decodeCloseSprintRequest,
+			encodeCloseSprintResponse,
+			options...,
+		),
+
+		getsprint: grpctransport.NewServer(
+			ctx,
+			endpoints.GetSprintEndpoint,
+			decodeGetSprintRequest,
+			encodeGetSprintResponse,
+			options...,
+		),
+	}
+}
+
+type grpcServer struct {
+	addsprint grpctransport.Handler
+
+	closesprint grpctransport.Handler
+
+	getsprint grpctransport.Handler
+}
+
+func (s *grpcServer) AddSprint(ctx context.Context, req *pb.AddSprintRequest) (*pb.AddSprintResponse, error) {
+	_, rep, err := s.addsprint.ServeGRPC(ctx, req)
+	if err != nil {
+		return nil, err
+	}
+	return rep.(*pb.AddSprintResponse), nil
+}
+
+func decodeAddSprintRequest(ctx context.Context, grpcReq interface{}) (interface{}, error) {
+	return grpcReq, nil
+}
+
+func encodeAddSprintResponse(ctx context.Context, response interface{}) (interface{}, error) {
+	resp := response.(*pb.AddSprintResponse)
+	return resp, nil
+}
+
+func (s *grpcServer) CloseSprint(ctx context.Context, req *pb.CloseSprintRequest) (*pb.CloseSprintResponse, error) {
+	_, rep, err := s.closesprint.ServeGRPC(ctx, req)
+	if err != nil {
+		return nil, err
+	}
+	return rep.(*pb.CloseSprintResponse), nil
+}
+
+func decodeCloseSprintRequest(ctx context.Context, grpcReq interface{}) (interface{}, error) {
+	return grpcReq, nil
+}
+
+func encodeCloseSprintResponse(ctx context.Context, response interface{}) (interface{}, error) {
+	resp := response.(*pb.CloseSprintResponse)
+	return resp, nil
+}
+
+func (s *grpcServer) GetSprint(ctx context.Context, req *pb.GetSprintRequest) (*pb.GetSprintResponse, error) {
+	_, rep, err := s.getsprint.ServeGRPC(ctx, req)
+	if err != nil {
+		return nil, err
+	}
+	return rep.(*pb.GetSprintResponse), nil
+}
+
+func decodeGetSprintRequest(ctx context.Context, grpcReq interface{}) (interface{}, error) {
+	return grpcReq, nil
+}
+
+func encodeGetSprintResponse(ctx context.Context, response interface{}) (interface{}, error) {
+	resp := response.(*pb.GetSprintResponse)
+	return resp, nil
+}

examples/go-kit/services/sprint/gen/transports/http/http.go

@@ -0,0 +1,93 @@
+package sprint_httptransport
+
+import (
+	"encoding/json"
+	context "golang.org/x/net/context"
+	"log"
+	"net/http"
+
+	gokit_endpoint "github.com/go-kit/kit/endpoint"
+	httptransport "github.com/go-kit/kit/transport/http"
+	endpoints "github.com/moul/protoc-gen-gotemplate/examples/go-kit/services/sprint/gen/endpoints"
+	pb "github.com/moul/protoc-gen-gotemplate/examples/go-kit/services/sprint/gen/pb"
+)
+
+func MakeAddSprintHandler(ctx context.Context, svc pb.SprintServiceServer, endpoint gokit_endpoint.Endpoint) *httptransport.Server {
+	return httptransport.NewServer(
+		ctx,
+		endpoint,
+		decodeAddSprintRequest,
+		encodeAddSprintResponse,
+		[]httptransport.ServerOption{}...,
+	)
+}
+
+func decodeAddSprintRequest(ctx context.Context, r *http.Request) (interface{}, error) {
+	var req pb.AddSprintRequest
+	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+		return nil, err
+	}
+	return &req, nil
+}
+
+func encodeAddSprintResponse(ctx context.Context, w http.ResponseWriter, response interface{}) error {
+	return json.NewEncoder(w).Encode(response)
+}
+
+func MakeCloseSprintHandler(ctx context.Context, svc pb.SprintServiceServer, endpoint gokit_endpoint.Endpoint) *httptransport.Server {
+	return httptransport.NewServer(
+		ctx,
+		endpoint,
+		decodeCloseSprintRequest,
+		encodeCloseSprintResponse,
+		[]httptransport.ServerOption{}...,
+	)
+}
+
+func decodeCloseSprintRequest(ctx context.Context, r *http.Request) (interface{}, error) {
+	var req pb.CloseSprintRequest
+	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+		return nil, err
+	}
+	return &req, nil
+}
+
+func encodeCloseSprintResponse(ctx context.Context, w http.ResponseWriter, response interface{}) error {
+	return json.NewEncoder(w).Encode(response)
+}
+
+func MakeGetSprintHandler(ctx context.Context, svc pb.SprintServiceServer, endpoint gokit_endpoint.Endpoint) *httptransport.Server {
+	return httptransport.NewServer(
+		ctx,
+		endpoint,
+		decodeGetSprintRequest,
+		encodeGetSprintResponse,
+		[]httptransport.ServerOption{}...,
+	)
+}
+
+func decodeGetSprintRequest(ctx context.Context, r *http.Request) (interface{}, error) {
+	var req pb.GetSprintRequest
+	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+		return nil, err
+	}
+	return &req, nil
+}
+
+func encodeGetSprintResponse(ctx context.Context, w http.ResponseWriter, response interface{}) error {
+	return json.NewEncoder(w).Encode(response)
+}
+
+func RegisterHandlers(ctx context.Context, svc pb.SprintServiceServer, mux *http.ServeMux, endpoints endpoints.Endpoints) error {
+
+	log.Println("new HTTP endpoint: \"/AddSprint\" (service=Sprint)")
+	mux.Handle("/AddSprint", MakeAddSprintHandler(ctx, svc, endpoints.AddSprintEndpoint))
+
+	log.Println("new HTTP endpoint: \"/CloseSprint\" (service=Sprint)")
+	mux.Handle("/CloseSprint", MakeCloseSprintHandler(ctx, svc, endpoints.CloseSprintEndpoint))
+
+	log.Println("new HTTP endpoint: \"/GetSprint\" (service=Sprint)")
+	mux.Handle("/GetSprint", MakeGetSprintHandler(ctx, svc, endpoints.GetSprintEndpoint))
+
+	return nil
+}

examples/go-kit/services/sprint/service.go

@@ -0,0 +1,27 @@
+package sprintsvc
+
+import (
+	"fmt"
+
+	"golang.org/x/net/context"
+
+	pb "github.com/moul/protoc-gen-gotemplate/examples/go-kit/services/sprint/gen/pb"
+)
+
+type Service struct{}
+
+func New() pb.SprintServiceServer {
+	return &Service{}
+}
+
+func (svc *Service) AddSprint(ctx context.Context, in *pb.AddSprintRequest) (*pb.AddSprintResponse, error) {
+	return nil, fmt.Errorf("not implemented")
+}
+
+func (svc *Service) CloseSprint(ctx context.Context, in *pb.CloseSprintRequest) (*pb.CloseSprintResponse, error) {
+	return nil, fmt.Errorf("not implemented")
+}
+
+func (svc *Service) GetSprint(ctx context.Context, in *pb.GetSprintRequest) (*pb.GetSprintResponse, error) {
+	return nil, fmt.Errorf("not implemented")
+}

examples/go-kit/services/sprint/sprint.proto

@@ -0,0 +1,38 @@
+syntax = "proto3";
+
+package sprint;
+
+service SprintService {
+  rpc AddSprint(AddSprintRequest) returns (AddSprintResponse) {}
+  rpc CloseSprint(CloseSprintRequest) returns (CloseSprintResponse) {}
+  rpc GetSprint(GetSprintRequest) returns (GetSprintResponse) {}
+}
+
+message AddSprintRequest {
+  string name = 1;
+}
+message AddSprintResponse {
+  Sprint sprint = 1;
+  string err_msg = 2;
+}
+
+message CloseSprintRequest {
+  string id = 1;
+}
+message CloseSprintResponse {
+  string err_msg = 1;
+}
+
+message GetSprintRequest {
+  string id = 1;
+}
+message GetSprintResponse {
+  Sprint sprint = 1;
+  string err_msg = 2;
+}
+
+message Sprint {
+  string id = 1;
+  uint32 created_at = 2;
+  string name = 3;
+}

examples/go-kit/templates/{{.File.Package}}/gen/endpoints/endpoints.go.tmpl

@@ -0,0 +1,49 @@
+package {{.File.Package}}_endpoints
+
+{{$file := .File}}
+
+import (
+	"fmt"
+	context "golang.org/x/net/context"
+	pb "github.com/moul/protoc-gen-gotemplate/examples/go-kit/services/{{.File.Package}}/gen/pb"
+	"github.com/go-kit/kit/endpoint"
+)
+
+var _ = fmt.Errorf
+
+type Endpoints struct {
+	{{range .Service.Method}}
+	{{.Name}}Endpoint endpoint.Endpoint
+	{{end}}
+}
+
+{{range .Service.Method}}
+func (e *Endpoints){{.Name}}(ctx context.Context, in *pb.{{.Name}}Request) (*pb.{{.Name}}Response, error) {
+	out, err := e.{{.Name}}Endpoint(ctx, in)
+	if err != nil {
+		return &pb.{{.Name}}Response{ErrMsg: err.Error()}, err
+	}
+	return out.(*pb.{{.Name}}Response), err
+}
+{{end}}
+
+{{range .Service.Method}}
+func Make{{.Name}}Endpoint(svc pb.{{$file.Package | title}}ServiceServer) endpoint.Endpoint {
+	return func(ctx context.Context, request interface{}) (interface{}, error) {
+		req := request.(*pb.{{.Name}}Request)
+		rep, err := svc.{{.Name}}(ctx, req)
+		if err != nil {
+			return &pb.{{.Name}}Response{ErrMsg: err.Error()}, err
+		}
+		return rep, nil
+	}
+}
+{{end}}
+
+func MakeEndpoints(svc pb.{{.File.Package | title}}ServiceServer) Endpoints {
+	return Endpoints{
+		{{range .Service.Method}}
+		{{.Name}}Endpoint: Make{{.Name}}Endpoint(svc),
+		{{end}}
+	}
+}

examples/go-kit/templates/{{.File.Package}}/gen/transports/grpc/grpc.go.tmpl

@@ -0,0 +1,59 @@
+package {{.File.Package}}_grpctransport
+
+{{$file := .File}}
+
+import (
+        "fmt"
+
+	context "golang.org/x/net/context"
+	pb "github.com/moul/protoc-gen-gotemplate/examples/go-kit/services/{{.File.Package}}/gen/pb"
+	grpctransport "github.com/go-kit/kit/transport/grpc"
+	endpoint "github.com/moul/protoc-gen-gotemplate/examples/go-kit/services/{{.File.Package}}/gen/endpoints"
+)
+
+// avoid import errors
+var _ = fmt.Errorf
+
+func MakeGRPCServer(ctx context.Context, endpoints endpoint.Endpoints) pb.{{.File.Package | title}}ServiceServer {
+	options := []grpctransport.ServerOption{}
+	return &grpcServer{
+		{{range .Service.Method}}
+                {{if not .ServerStreaming}}
+                {{if not .ClientStreaming}}
+		{{.Name | lower}}: grpctransport.NewServer(
+			ctx,
+			endpoints.{{.Name}}Endpoint,
+			decode{{.Name}}Request,
+			encode{{.Name}}Response,
+			options...,
+		),
+                {{end}}
+		{{end}}
+                {{end}}
+	}
+}
+
+type grpcServer struct {
+	{{range .Service.Method}}
+	{{.Name | lower}} grpctransport.Handler
+	{{end}}
+}
+
+{{range .Service.Method}}
+func (s *grpcServer) {{.Name}}(ctx context.Context, req *pb.{{.Name}}Request) (*pb.{{.Name}}Response, error) {
+	_, rep, err := s.{{.Name | lower}}.ServeGRPC(ctx, req)
+	if err != nil {
+		return nil, err
+	}
+	return rep.(*pb.{{.Name}}Response), nil
+}
+
+func decode{{.Name}}Request(ctx context.Context, grpcReq interface{}) (interface{}, error) {
+	return grpcReq, nil
+}
+
+func encode{{.Name}}Response(ctx context.Context, response interface{}) (interface{}, error) {
+	resp := response.(*pb.{{.Name}}Response)
+	return resp, nil
+}
+{{end}}

examples/go-kit/templates/{{.File.Package}}/gen/transports/http/http.go.tmpl

@@ -0,0 +1,47 @@
+package {{.File.Package}}_httptransport
+
+{{$file := .File}}
+
+import (
+       "log"
+	"net/http"
+	"encoding/json"
+	context "golang.org/x/net/context"
+
+	pb "github.com/moul/protoc-gen-gotemplate/examples/go-kit/services/{{.File.Package}}/gen/pb"
+        gokit_endpoint "github.com/go-kit/kit/endpoint"
+	httptransport "github.com/go-kit/kit/transport/http"
+	endpoints "github.com/moul/protoc-gen-gotemplate/examples/go-kit/services/{{.File.Package}}/gen/endpoints"
+)
+
+{{range .Service.Method}}
+func Make{{.Name}}Handler(ctx context.Context, svc pb.{{$file.Package | title}}ServiceServer, endpoint gokit_endpoint.Endpoint) *httptransport.Server {
+	return httptransport.NewServer(
+		ctx,
+		endpoint,
+		decode{{.Name}}Request,
+		encode{{.Name}}Response,
+                []httptransport.ServerOption{}...,
+	)
+}
+
+func decode{{.Name}}Request(ctx context.Context, r *http.Request) (interface{}, error) {
+	var req pb.{{.Name}}Request
+	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+		return nil, err
+	}
+	return &req, nil
+}
+
+func encode{{.Name}}Response(ctx context.Context, w http.ResponseWriter, response interface{}) error {
+	return json.NewEncoder(w).Encode(response)
+}
+{{end}}
+
+func RegisterHandlers(ctx context.Context, svc pb.{{$file.Package | title}}ServiceServer, mux *http.ServeMux, endpoints endpoints.Endpoints) error {
+	{{range .Service.Method}}
+        log.Println("new HTTP endpoint: \"/{{.Name}}\" (service={{$file.Package | title}})")
+	mux.Handle("/{{.Name}}", Make{{.Name}}Handler(ctx, svc, endpoints.{{.Name}}Endpoint))
+	{{end}}
+	return nil
+}