[#11] transport: Implement gRPC server handlers of API service

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>

go.mod

@@ -16,7 +16,7 @@ require (
 	github.com/multiformats/go-multihash v0.0.13
 	github.com/nspcc-dev/hrw v1.0.9
 	github.com/nspcc-dev/neo-go v0.90.0
-	github.com/nspcc-dev/neofs-api-go v1.3.1-0.20200820112910-89e79ebe72b0
+	github.com/nspcc-dev/neofs-api-go v1.3.1-0.20200821125006-afd2ce0400ec
 	github.com/nspcc-dev/neofs-crypto v0.3.0
 	github.com/nspcc-dev/netmap v1.7.0
 	github.com/nspcc-dev/tzhash v1.4.0 // indirect

go.sum

@@ -6,6 +6,7 @@ cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSR
 cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU=
 cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
 cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
+cloud.google.com/go v0.46.3 h1:AVXDdKsrtX33oR9fbCMu/+c1o8Ofjq6Ku/MInaLVg5Y=
 cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
 cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
 cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE=
@@ -165,6 +166,7 @@ github.com/google/renameio v0.1.0/go.mod h1:KWCgfxg9yswjAJkECMjeO8J8rahYeXnNhOm4
 github.com/google/uuid v1.1.1 h1:Gkbcsh/GbpXz7lPftLA3P6TYMwjCLYm83jiFQZF/3gY=
 github.com/google/uuid v1.1.1/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/googleapis/gax-go/v2 v2.0.4/go.mod h1:0Wqv26UfaUD9n4G6kQubkQ+KchISgw+vpHVxEJEs9eg=
+github.com/googleapis/gax-go/v2 v2.0.5 h1:sjZBwGj9Jlw33ImPtvFviGYvseOtDM7hkSKB7+Tv3SM=
 github.com/googleapis/gax-go/v2 v2.0.5/go.mod h1:DWXyrwAJ9X0FpwwEdw+IPEYBICEFu5mhpdKc/us6bOk=
 github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1 h1:EGx4pi6eqNxGaHF6qqu48+N2wcFQ5qg5FXgOdqsJ5d8=
 github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
@@ -191,6 +193,7 @@ github.com/hashicorp/go-uuid v1.0.0/go.mod h1:6SBZvOh/SIDV7/2o3Jml5SYk/TvGqwFJ/b
 github.com/hashicorp/go-uuid v1.0.1/go.mod h1:6SBZvOh/SIDV7/2o3Jml5SYk/TvGqwFJ/bN7x4byOro=
 github.com/hashicorp/go.net v0.0.1/go.mod h1:hjKkEWcCURg++eb33jQU7oqQcI9XDCnUzHA0oac0k90=
 github.com/hashicorp/golang-lru v0.5.0/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
+github.com/hashicorp/golang-lru v0.5.1 h1:0hERBMJE1eitiLkihrMvRVBYAkpHzc/J3QdDN+dAcgU=
 github.com/hashicorp/golang-lru v0.5.1/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
 github.com/hashicorp/hcl v1.0.0 h1:0Anlzjpi4vEasTeNFn2mLJgTSwt0+6sfsiTG8qcWGx4=
 github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ=
@@ -299,6 +302,8 @@ github.com/nspcc-dev/neofs-api-go v1.3.0 h1:w0wYIXzPJIElwhqahnQw/1NKiHxjRZKJhDUM
 github.com/nspcc-dev/neofs-api-go v1.3.0/go.mod h1:NlCjqm//ZRXBNlxtrilLM1GgkRz0mv4V3pdX8OcGoLw=
 github.com/nspcc-dev/neofs-api-go v1.3.1-0.20200820112910-89e79ebe72b0 h1:aaDAx0xezfCzpD7NrmaJTLDHs58t5JM4ZV3ttyMJicY=
 github.com/nspcc-dev/neofs-api-go v1.3.1-0.20200820112910-89e79ebe72b0/go.mod h1:6euXsb8tS06O9z3iuM49FrKeOhHO66R2DW8T8E1Wfl8=
+github.com/nspcc-dev/neofs-api-go v1.3.1-0.20200821125006-afd2ce0400ec h1:RiOp+9omHGk4y70GHaC4rhnCe/3TPoFR/YmdL/5Ke1c=
+github.com/nspcc-dev/neofs-api-go v1.3.1-0.20200821125006-afd2ce0400ec/go.mod h1:6euXsb8tS06O9z3iuM49FrKeOhHO66R2DW8T8E1Wfl8=
 github.com/nspcc-dev/neofs-crypto v0.2.0/go.mod h1:F/96fUzPM3wR+UGsPi3faVNmFlA9KAEAUQR7dMxZmNA=
 github.com/nspcc-dev/neofs-crypto v0.2.3 h1:aca3X2aly92ENRbFK+kH6Hd+J9EQ4Eu6XMVoITSIKtc=
 github.com/nspcc-dev/neofs-crypto v0.2.3/go.mod h1:8w16GEJbH6791ktVqHN9YRNH3s9BEEKYxGhlFnp0cDw=
@@ -421,6 +426,7 @@ github.com/stretchr/testify v1.4.0 h1:2E4SXV/wtOkTonXsotYi4li6zVWxYlZuYNCXe9XRJy
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
 github.com/stretchr/testify v1.5.1 h1:nOGnQDM7FYENwehXlg/kFVnos3rEvtKTjRvOWSzb6H4=
 github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
+github.com/stretchr/testify v1.6.1 h1:hDPOHmpOpP40lSULcqw7IrRb/u7w6RpDC9399XyoNd0=
 github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/subosito/gotenv v1.2.0 h1:Slr1R9HxAlEKefgq5jn9U+DnETlIUa6HfgEzj0g5d7s=
 github.com/subosito/gotenv v1.2.0/go.mod h1:N0PQaV/YGNqwC0u51sEeR/aUtSLEXKX9iv69rRypqCw=
@@ -446,6 +452,7 @@ go.etcd.io/bbolt v1.3.3/go.mod h1:IbVyRI1SCnLcuJnV2u8VeU0CEYM7e686BmAb1XKL+uU=
 go.etcd.io/bbolt v1.3.4 h1:hi1bXHMVrlQh6WwxAy+qZCV/SYIlqo+Ushwdpa4tAKg=
 go.etcd.io/bbolt v1.3.4/go.mod h1:G5EMThwa9y8QZGBClrRx5EY+Yw9kAhnjy3bSjsnlVTQ=
 go.opencensus.io v0.21.0/go.mod h1:mSImk1erAIZhrmZN+AvHh14ztQfjbGwt4TtuofqLduU=
+go.opencensus.io v0.22.0 h1:C9hSCOW830chIVkdja34wa6Ky+IzWllkUinR+BtRZd4=
 go.opencensus.io v0.22.0/go.mod h1:+kGneAE2xo2IficOXnaByMWTGM9T73dGwxeWcUqIpI8=
 go.uber.org/atomic v1.4.0 h1:cxzIVoETapQEqDhQu3QfnvXAV4AlzcvUCxkVUFw3+EU=
 go.uber.org/atomic v1.4.0/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
@@ -526,6 +533,7 @@ golang.org/x/net v0.0.0-20190827160401-ba9fcec4b297 h1:k7pJ2yAPLPgbskkFdhRCsA77k
 golang.org/x/net v0.0.0-20190827160401-ba9fcec4b297/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
+golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45 h1:SVwTIAaPC2U/AvvLNZ2a7OVsmBpC8L5BlwK1whH3hm0=
 golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@@ -610,6 +618,7 @@ google.golang.org/api v0.4.0/go.mod h1:8k5glujaEP+g9n7WNsDg8QP6cUVNI86fCNMcbazEt
 google.golang.org/api v0.7.0/go.mod h1:WtwebWUNSVBH/HAw79HIFXZNqEvBhG+Ra+ax0hx3E3M=
 google.golang.org/api v0.8.0/go.mod h1:o4eAsZoiT+ibD93RtjEohWalFOjRDx6CVaqeizhEnKg=
 google.golang.org/api v0.9.0/go.mod h1:o4eAsZoiT+ibD93RtjEohWalFOjRDx6CVaqeizhEnKg=
+google.golang.org/api v0.13.0 h1:Q3Ui3V3/CVinFWFiW39Iw0kMuVrRzYX0wN6OPFp0lTA=
 google.golang.org/api v0.13.0/go.mod h1:iLdEw5Ide6rF15KTC1Kkl0iskquN2gFfn9o9XIsbkAI=
 google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
 google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
@@ -668,6 +677,7 @@ gopkg.in/yaml.v2 v2.2.5 h1:ymVxjfMaHvXD8RqPRmzHHsB3VvucivSkIAvJFDI5O3c=
 gopkg.in/yaml.v2 v2.2.5/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.7 h1:VUgggvou5XRW9mHwD/yXxIYSMtY0zoKQf/v226p2nyo=
 gopkg.in/yaml.v2 v2.2.7/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=

pkg/network/transport/accounting/grpc/service.go

@@ -0,0 +1,32 @@
+package accounting
+
+import (
+	"context"
+
+	"github.com/nspcc-dev/neofs-api-go/v2/accounting"
+	accountingGRPC "github.com/nspcc-dev/neofs-api-go/v2/accounting/grpc"
+)
+
+// Server wraps NeoFS API Accounting service and
+// provides gRPC Accounting service server interface.
+type Server struct {
+	srv accounting.Service
+}
+
+// New creates, initializes and returns Server instance.
+func New(c accounting.Service) *Server {
+	return &Server{
+		srv: c,
+	}
+}
+
+// Balance converts gRPC BalanceRequest message and passes it to internal Accounting service.
+func (s *Server) Balance(ctx context.Context, req *accountingGRPC.BalanceRequest) (*accountingGRPC.BalanceResponse, error) {
+	resp, err := s.srv.Balance(ctx, accounting.BalanceRequestFromGRPCMessage(req))
+	if err != nil {
+		// TODO: think about how we transport errors through gRPC
+		return nil, err
+	}
+
+	return accounting.BalanceResponseToGRPCMessage(resp), nil
+}

pkg/network/transport/container/grpc/service.go

@@ -0,0 +1,87 @@
+package container
+
+import (
+	"context"
+
+	"github.com/nspcc-dev/neofs-api-go/v2/container"
+	containerGRPC "github.com/nspcc-dev/neofs-api-go/v2/container/grpc"
+)
+
+// Server wraps NeoFS API Container service and
+// provides gRPC Container service server interface.
+type Server struct {
+	srv container.Service
+}
+
+// New creates, initializes and returns Server instance.
+func New(c container.Service) *Server {
+	return &Server{
+		srv: c,
+	}
+}
+
+// Put converts gRPC PutRequest message and passes it to internal Container service.
+func (s *Server) Put(ctx context.Context, req *containerGRPC.PutRequest) (*containerGRPC.PutResponse, error) {
+	resp, err := s.srv.Put(ctx, container.PutRequestFromGRPCMessage(req))
+	if err != nil {
+		// TODO: think about how we transport errors through gRPC
+		return nil, err
+	}
+
+	return container.PutResponseToGRPCMessage(resp), nil
+}
+
+// Delete converts gRPC DeleteRequest message and passes it to internal Container service.
+func (s *Server) Delete(ctx context.Context, req *containerGRPC.DeleteRequest) (*containerGRPC.DeleteResponse, error) {
+	resp, err := s.srv.Delete(ctx, container.DeleteRequestFromGRPCMessage(req))
+	if err != nil {
+		// TODO: think about how we transport errors through gRPC
+		return nil, err
+	}
+
+	return container.DeleteResponseToGRPCMessage(resp), nil
+}
+
+// Get converts gRPC GetRequest message and passes it to internal Container service.
+func (s *Server) Get(ctx context.Context, req *containerGRPC.GetRequest) (*containerGRPC.GetResponse, error) {
+	resp, err := s.srv.Get(ctx, container.GetRequestFromGRPCMessage(req))
+	if err != nil {
+		// TODO: think about how we transport errors through gRPC
+		return nil, err
+	}
+
+	return container.GetResponseToGRPCMessage(resp), nil
+}
+
+// List converts gRPC ListRequest message and passes it to internal Container service.
+func (s *Server) List(ctx context.Context, req *containerGRPC.ListRequest) (*containerGRPC.ListResponse, error) {
+	resp, err := s.srv.List(ctx, container.ListRequestFromGRPCMessage(req))
+	if err != nil {
+		// TODO: think about how we transport errors through gRPC
+		return nil, err
+	}
+
+	return container.ListResponseToGRPCMessage(resp), nil
+}
+
+// SetExtendedACL converts gRPC SetExtendedACLRequest message and passes it to internal Container service.
+func (s *Server) SetExtendedACL(ctx context.Context, req *containerGRPC.SetExtendedACLRequest) (*containerGRPC.SetExtendedACLResponse, error) {
+	resp, err := s.srv.SetExtendedACL(ctx, container.SetExtendedACLRequestFromGRPCMessage(req))
+	if err != nil {
+		// TODO: think about how we transport errors through gRPC
+		return nil, err
+	}
+
+	return container.SetExtendedACLResponseToGRPCMessage(resp), nil
+}
+
+// GetExtendedACL converts gRPC GetExtendedACLRequest message and passes it to internal Container service.
+func (s *Server) GetExtendedACL(ctx context.Context, req *containerGRPC.GetExtendedACLRequest) (*containerGRPC.GetExtendedACLResponse, error) {
+	resp, err := s.srv.GetExtendedACL(ctx, container.GetExtendedACLRequestFromGRPCMessage(req))
+	if err != nil {
+		// TODO: think about how we transport errors through gRPC
+		return nil, err
+	}
+
+	return container.GetExtendedACLResponseToGRPCMessage(resp), nil
+}

pkg/network/transport/object/grpc/service.go

@@ -0,0 +1,159 @@
+package object
+
+import (
+	"context"
+	"io"
+
+	"github.com/nspcc-dev/neofs-api-go/v2/object"
+	objectGRPC "github.com/nspcc-dev/neofs-api-go/v2/object/grpc"
+)
+
+// Server wraps NeoFS API Object service and
+// provides gRPC Object service server interface.
+type Server struct {
+	srv object.Service
+}
+
+// New creates, initializes and returns Server instance.
+func New(c object.Service) *Server {
+	return &Server{
+		srv: c,
+	}
+}
+
+// Get converts gRPC GetRequest message, opens internal Object service Get stream and overtakes its data
+// to gRPC stream.
+func (s *Server) Get(req *objectGRPC.GetRequest, gStream objectGRPC.ObjectService_GetServer) error {
+	stream, err := s.srv.Get(gStream.Context(), object.GetRequestFromGRPCMessage(req))
+	if err != nil {
+		// TODO: think about how we transport errors through gRPC
+		return err
+	}
+
+	for {
+		r, err := stream.Recv()
+		if err != nil {
+			if err == io.EOF {
+				return nil
+			}
+
+			return err
+		}
+
+		if err := gStream.Send(object.GetResponseToGRPCMessage(r)); err != nil {
+			return err
+		}
+	}
+}
+
+// Put opens internal Object service Put stream and overtakes data from gRPC stream to it.
+func (s *Server) Put(gStream objectGRPC.ObjectService_PutServer) error {
+	stream, err := s.srv.Put(gStream.Context())
+	if err != nil {
+		// TODO: think about how we transport errors through gRPC
+		return err
+	}
+
+	for {
+		req, err := gStream.Recv()
+		if err == nil {
+			if err := stream.Send(object.PutRequestFromGRPCMessage(req)); err != nil {
+				return err
+			}
+		}
+
+		if err == io.EOF {
+			resp, err := stream.CloseAndRecv()
+			if err != nil {
+				return err
+			}
+
+			return gStream.SendAndClose(object.PutResponseToGRPCMessage(resp))
+		}
+
+		return err
+	}
+}
+
+// Delete converts gRPC DeleteRequest message and passes it to internal Object service.
+func (s *Server) Delete(ctx context.Context, req *objectGRPC.DeleteRequest) (*objectGRPC.DeleteResponse, error) {
+	resp, err := s.srv.Delete(ctx, object.DeleteRequestFromGRPCMessage(req))
+	if err != nil {
+		// TODO: think about how we transport errors through gRPC
+		return nil, err
+	}
+
+	return object.DeleteResponseToGRPCMessage(resp), nil
+}
+
+// Head converts gRPC HeadRequest message and passes it to internal Object service.
+func (s *Server) Head(ctx context.Context, req *objectGRPC.HeadRequest) (*objectGRPC.HeadResponse, error) {
+	resp, err := s.srv.Head(ctx, object.HeadRequestFromGRPCMessage(req))
+	if err != nil {
+		// TODO: think about how we transport errors through gRPC
+		return nil, err
+	}
+
+	return object.HeadResponseToGRPCMessage(resp), nil
+}
+
+// Search converts gRPC SearchRequest message, opens internal Object service Search stream and overtakes its data
+// to gRPC stream.
+func (s *Server) Search(req *objectGRPC.SearchRequest, gStream objectGRPC.ObjectService_SearchServer) error {
+	stream, err := s.srv.Search(gStream.Context(), object.SearchRequestFromGRPCMessage(req))
+	if err != nil {
+		// TODO: think about how we transport errors through gRPC
+		return err
+	}
+
+	for {
+		r, err := stream.Recv()
+		if err != nil {
+			if err == io.EOF {
+				return nil
+			}
+
+			return err
+		}
+
+		if err := gStream.Send(object.SearchResponseToGRPCMessage(r)); err != nil {
+			return err
+		}
+	}
+}
+
+// GetRange converts gRPC GetRangeRequest message, opens internal Object service Search stream and overtakes its data
+// to gRPC stream.
+func (s *Server) GetRange(req *objectGRPC.GetRangeRequest, gStream objectGRPC.ObjectService_GetRangeServer) error {
+	stream, err := s.srv.GetRange(gStream.Context(), object.GetRangeRequestFromGRPCMessage(req))
+	if err != nil {
+		// TODO: think about how we transport errors through gRPC
+		return err
+	}
+
+	for {
+		r, err := stream.Recv()
+		if err != nil {
+			if err == io.EOF {
+				return nil
+			}
+
+			return err
+		}
+
+		if err := gStream.Send(object.GetRangeResponseToGRPCMessage(r)); err != nil {
+			return err
+		}
+	}
+}
+
+// GetRangeHash converts gRPC GetRangeHashRequest message and passes it to internal Object service.
+func (s *Server) GetRangeHash(ctx context.Context, req *objectGRPC.GetRangeHashRequest) (*objectGRPC.GetRangeHashResponse, error) {
+	resp, err := s.srv.GetRangeHash(ctx, object.GetRangeHashRequestFromGRPCMessage(req))
+	if err != nil {
+		// TODO: think about how we transport errors through gRPC
+		return nil, err
+	}
+
+	return object.GetRangeHashResponseToGRPCMessage(resp), nil
+}

pkg/network/transport/session/grpc/service.go

@@ -0,0 +1,32 @@
+package accounting
+
+import (
+	"context"
+
+	"github.com/nspcc-dev/neofs-api-go/v2/session"
+	sessionGRPC "github.com/nspcc-dev/neofs-api-go/v2/session/grpc"
+)
+
+// Server wraps NeoFS API Session service and
+// provides gRPC Session service server interface.
+type Server struct {
+	srv session.Service
+}
+
+// New creates, initializes and returns Server instance.
+func New(c session.Service) *Server {
+	return &Server{
+		srv: c,
+	}
+}
+
+// Create converts gRPC CreateRequest message and passes it to internal Session service.
+func (s *Server) Create(ctx context.Context, req *sessionGRPC.CreateRequest) (*sessionGRPC.CreateResponse, error) {
+	resp, err := s.srv.Create(ctx, session.CreateRequestFromGRPCMessage(req))
+	if err != nil {
+		// TODO: think about how we transport errors through gRPC
+		return nil, err
+	}
+
+	return session.CreateResponseToGRPCMessage(resp), nil
+}