feat(baseapp): support pulsar gRPC query servers (cosmos#11192)

## Description

This adds support for registering gRPC query server implementations that were generated using pulsar. It should make integration with the ORM easier.

This should be backportable.

This does not enable support for pulsar msg servers or tx's.



---

### Author Checklist

*All items are required. Please add a note to the item if the item is not applicable and
please add links to any relevant follow up issues.*

I have...

- [ ] included the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [ ] added `!` to the type prefix if API or client breaking change
- [ ] targeted the correct branch (see [PR Targeting](https://github.com/cosmos/cosmos-sdk/blob/master/CONTRIBUTING.md#pr-targeting))
- [ ] provided a link to the relevant issue or specification
- [ ] followed the guidelines for [building modules](https://github.com/cosmos/cosmos-sdk/blob/master/docs/building-modules)
- [ ] included the necessary unit and integration [tests](https://github.com/cosmos/cosmos-sdk/blob/master/CONTRIBUTING.md#testing)
- [ ] added a changelog entry to `CHANGELOG.md`
- [ ] included comments for [documenting Go code](https://blog.golang.org/godoc)
- [ ] updated the relevant documentation or specification
- [ ] reviewed "Files changed" and left comments if necessary
- [ ] confirmed all CI checks have passed

### Reviewers Checklist

*All items are required. Please add a note if the item is not applicable and please add
your handle next to the items reviewed if you only reviewed selected items.*

I have...

- [ ] confirmed the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [ ] confirmed `!` in the type prefix if API or client breaking change
- [ ] confirmed all author checklist items have been addressed 
- [ ] reviewed state machine logic
- [ ] reviewed API design and naming
- [ ] reviewed documentation is accurate
- [ ] reviewed tests and test coverage
- [ ] manually tested (if applicable)

baseapp/baseapp_test.go

@@ -14,6 +14,10 @@ import (
 	"testing"
 	"time"
 
+	"google.golang.org/protobuf/proto"
+
+	"github.com/cosmos/cosmos-sdk/testutil/testdata_pulsar"
+
 	"github.com/gogo/protobuf/jsonpb"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
@@ -1817,6 +1821,41 @@ func TestGRPCQuery(t *testing.T) {
 	require.Equal(t, "Hello foo!", res.Greeting)
 }
 
+func TestGRPCQueryPulsar(t *testing.T) {
+	grpcQueryOpt := func(bapp *baseapp.BaseApp) {
+		testdata_pulsar.RegisterQueryServer(
+			bapp.GRPCQueryRouter(),
+			testdata_pulsar.QueryImpl{},
+		)
+	}
+
+	app := setupBaseApp(t, grpcQueryOpt)
+	app.GRPCQueryRouter().SetInterfaceRegistry(codectypes.NewInterfaceRegistry())
+
+	app.InitChain(abci.RequestInitChain{})
+	header := tmproto.Header{Height: app.LastBlockHeight() + 1}
+	app.BeginBlock(abci.RequestBeginBlock{Header: header})
+	app.Commit()
+
+	req := &testdata_pulsar.SayHelloRequest{Name: "foo"}
+	reqBz, err := proto.Marshal(req)
+	require.NoError(t, err)
+
+	reqQuery := abci.RequestQuery{
+		Data: reqBz,
+		Path: "/testdata.Query/SayHello",
+	}
+
+	resQuery := app.Query(reqQuery)
+
+	require.Equal(t, abci.CodeTypeOK, resQuery.Code, resQuery)
+
+	var res testdata_pulsar.SayHelloResponse
+	err = proto.Unmarshal(resQuery.Value, &res)
+	require.NoError(t, err)
+	require.Equal(t, "Hello foo!", res.Greeting)
+}
+
 // Test p2p filter queries
 func TestP2PQuery(t *testing.T) {
 	addrPeerFilterOpt := func(bapp *baseapp.BaseApp) {

baseapp/grpcrouter.go

@@ -2,9 +2,11 @@ package baseapp
 
 import (
 	"fmt"
-	"github.com/cosmos/cosmos-sdk/codec"
+
 	"google.golang.org/grpc/encoding"
 
+	"github.com/cosmos/cosmos-sdk/codec"
+
 	"github.com/cosmos/cosmos-sdk/client/grpc/reflection"
 
 	gogogrpc "github.com/gogo/protobuf/grpc"
@@ -81,18 +83,15 @@ func (qrt *GRPCQueryRouter) RegisterService(sd *grpc.ServiceDesc, handler interf
 			// call the method handler from the service description with the handler object,
 			// a wrapped sdk.Context with proto-unmarshaled data from the ABCI request data
 			res, err := methodHandler(handler, sdk.WrapSDKContext(ctx), func(i interface{}) error {
-				err := qrt.cdc.Unmarshal(req.Data, i)
-				if err != nil {
-					return err
-				}
-				return nil
+				return qrt.cdc.Unmarshal(req.Data, i)
 			}, nil)
 			if err != nil {
 				return abci.ResponseQuery{}, err
 			}
 
 			// proto marshal the result bytes
-			resBytes, err := qrt.cdc.Marshal(res)
+			var resBytes []byte
+			resBytes, err = qrt.cdc.Marshal(res)
 			if err != nil {
 				return abci.ResponseQuery{}, err
 			}

baseapp/grpcrouter_test.go

@@ -5,6 +5,8 @@ import (
 	"sync"
 	"testing"
 
+	"github.com/cosmos/cosmos-sdk/testutil/testdata_pulsar"
+
 	"github.com/stretchr/testify/require"
 	"github.com/tendermint/tendermint/libs/log"
 	dbm "github.com/tendermint/tm-db"
@@ -16,11 +18,11 @@ import (
 	sdk "github.com/cosmos/cosmos-sdk/types"
 )
 
-func TestGRPCGatewayRouter(t *testing.T) {
+func TestGRPCQueryRouter(t *testing.T) {
 	qr := baseapp.NewGRPCQueryRouter()
 	interfaceRegistry := testdata.NewTestInterfaceRegistry()
 	qr.SetInterfaceRegistry(interfaceRegistry)
-	testdata.RegisterQueryServer(qr, testdata.QueryImpl{})
+	testdata_pulsar.RegisterQueryServer(qr, testdata_pulsar.QueryImpl{})
 	helper := &baseapp.QueryServiceTestHelper{
 		GRPCQueryRouter: qr,
 		Ctx:             sdk.Context{}.WithContext(context.Background()),

codec/proto_codec.go

@@ -4,13 +4,16 @@ import (
 	"encoding/binary"
 	"errors"
 	"fmt"
+	"strings"
+
 	legacyproto "github.com/golang/protobuf/proto"
 	"google.golang.org/grpc/encoding"
-	"strings"
+	"google.golang.org/protobuf/proto"
 
-	"github.com/cosmos/cosmos-sdk/codec/types"
 	"github.com/gogo/protobuf/jsonpb"
 	gogoproto "github.com/gogo/protobuf/proto"
+
+	"github.com/cosmos/cosmos-sdk/codec/types"
 )
 
 // ProtoCodecMarshaler defines an interface for codecs that utilize Protobuf for both
@@ -264,8 +267,9 @@ type grpcProtoCodec struct {
 }
 
 func (g grpcProtoCodec) Marshal(v interface{}) ([]byte, error) {
-	// TODO(fdymylja): maybe this is the correct place to support protov2 types too for gRPC
 	switch m := v.(type) {
+	case proto.Message:
+		return proto.Marshal(m)
 	case ProtoMarshaler:
 		return g.cdc.Marshal(m)
 	case legacyproto.Message:
@@ -276,8 +280,9 @@ func (g grpcProtoCodec) Marshal(v interface{}) ([]byte, error) {
 }
 
 func (g grpcProtoCodec) Unmarshal(data []byte, v interface{}) error {
-	// TODO(fdymylja): maybe this is the correct place to support protov2 types too for gRPC
 	switch m := v.(type) {
+	case proto.Message:
+		return proto.Unmarshal(data, m)
 	case ProtoMarshaler:
 		return g.cdc.Unmarshal(data, m)
 	case legacyproto.Message:

go.mod

@@ -12,6 +12,7 @@ require (
 	github.com/confio/ics23/go v0.6.6
 	github.com/cosmos/btcutil v1.0.4
 	github.com/cosmos/cosmos-proto v1.0.0-alpha7
+	github.com/cosmos/cosmos-sdk/api v0.1.0-alpha4
 	github.com/cosmos/cosmos-sdk/db v1.0.0-beta.1
 	github.com/cosmos/cosmos-sdk/errors v1.0.0-beta.2
 	github.com/cosmos/go-bip39 v1.0.0

go.sum

@@ -283,6 +283,8 @@ github.com/cosmos/btcutil v1.0.4 h1:n7C2ngKXo7UC9gNyMNLbzqz7Asuf+7Qv4gnX/rOdQ44=
 github.com/cosmos/btcutil v1.0.4/go.mod h1:Ffqc8Hn6TJUdDgHBwIZLtrLQC1KdJ9jGJl/TvgUaxbU=
 github.com/cosmos/cosmos-proto v1.0.0-alpha7 h1:yqYUOHF2jopwZh4dVQp3xgqwftE5/2hkrwIV6vkUbO0=
 github.com/cosmos/cosmos-proto v1.0.0-alpha7/go.mod h1:dosO4pSAbJF8zWCzCoTWP7nNsjcvSUBQmniFxDg5daw=
+github.com/cosmos/cosmos-sdk/api v0.1.0-alpha4 h1:z2si9sQNUTj2jw+24SujuUxcoNS3TVga/fdYsS4rJII=
+github.com/cosmos/cosmos-sdk/api v0.1.0-alpha4/go.mod h1:gZu6sOu2vl4Fd7I+BjDSx2bxndwPgFLGfOegek3SQQo=
 github.com/cosmos/cosmos-sdk/errors v1.0.0-beta.2 h1:bBglNlra8ZHb4dmbEE8V85ihLA+DkriSm7tcx6x/JWo=
 github.com/cosmos/cosmos-sdk/errors v1.0.0-beta.2/go.mod h1:Gi7pzVRnvZ1N16JAXpLADzng0ePoE7YeEHaULSFB2Ts=
 github.com/cosmos/go-bip39 v0.0.0-20180819234021-555e2067c45d/go.mod h1:tSxLoYXyBmiFeKpvmq4dzayMdCjCnu8uqmCysIGBT2Y=
@@ -1926,6 +1928,7 @@ google.golang.org/genproto v0.0.0-20211129164237-f09f9a12af12/go.mod h1:5CzLGKJ6
 google.golang.org/genproto v0.0.0-20211203200212-54befc351ae9/go.mod h1:5CzLGKJ67TSI2B9POpiiyGha0AjJvZIUgRMt1dSmuhc=
 google.golang.org/genproto v0.0.0-20211206160659-862468c7d6e0/go.mod h1:5CzLGKJ67TSI2B9POpiiyGha0AjJvZIUgRMt1dSmuhc=
 google.golang.org/genproto v0.0.0-20211208223120-3a66f561d7aa/go.mod h1:5CzLGKJ67TSI2B9POpiiyGha0AjJvZIUgRMt1dSmuhc=
+google.golang.org/genproto v0.0.0-20211223182754-3ac035c7e7cb/go.mod h1:5CzLGKJ67TSI2B9POpiiyGha0AjJvZIUgRMt1dSmuhc=
 google.golang.org/genproto v0.0.0-20220118154757-00ab72f36ad5 h1:zzNejm+EgrbLfDZ6lu9Uud2IVvHySPl8vQzf04laR5Q=
 google.golang.org/genproto v0.0.0-20220118154757-00ab72f36ad5/go.mod h1:5CzLGKJ67TSI2B9POpiiyGha0AjJvZIUgRMt1dSmuhc=
 google.golang.org/grpc v1.8.0/go.mod h1:yo6s7OP7yaDglbqo1J04qKzAhqBH6lvTonzMVmEdcZw=

proto/cosmos/tx/v1beta1/service.proto

@@ -4,10 +4,8 @@ package cosmos.tx.v1beta1;
 import "google/api/annotations.proto";
 import "cosmos/base/abci/v1beta1/abci.proto";
 import "cosmos/tx/v1beta1/tx.proto";
-import "gogoproto/gogo.proto";
 import "cosmos/base/query/v1beta1/pagination.proto";
 
-option (gogoproto.goproto_registration) = true;
 option go_package                       = "github.com/cosmos/cosmos-sdk/types/tx";
 
 // Service defines a gRPC service for interacting with transactions.

scripts/protocgen2.sh

@@ -11,3 +11,6 @@ protoc_install_gopulsar
 
 echo "Generating API module"
 (cd proto; buf generate --template buf.gen.pulsar.yaml)
+
+echo "Generate Pulsar Test Data"
+(cd testutil/testdata; buf generate --template buf.gen.pulsar.yaml)

simapp/app.go

@@ -7,6 +7,8 @@ import (
 	"os"
 	"path/filepath"
 
+	"github.com/cosmos/cosmos-sdk/testutil/testdata_pulsar"
+
 	"github.com/gorilla/mux"
 	"github.com/rakyll/statik/fs"
 	"github.com/spf13/cast"
@@ -27,7 +29,6 @@ import (
 	simappparams "github.com/cosmos/cosmos-sdk/simapp/params"
 	"github.com/cosmos/cosmos-sdk/store/streaming"
 	storetypes "github.com/cosmos/cosmos-sdk/store/types"
-	"github.com/cosmos/cosmos-sdk/testutil/testdata"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	"github.com/cosmos/cosmos-sdk/types/module"
 	"github.com/cosmos/cosmos-sdk/version"
@@ -407,7 +408,7 @@ func NewSimApp(
 	app.mm.RegisterServices(app.configurator)
 
 	// add test gRPC service for testing gRPC queries in isolation
-	testdata.RegisterQueryServer(app.GRPCQueryRouter(), testdata.QueryImpl{})
+	testdata_pulsar.RegisterQueryServer(app.GRPCQueryRouter(), testdata_pulsar.QueryImpl{})
 
 	// create the simulation manager and define the order of the modules for deterministic simulations
 	//

testutil/testdata/buf.gen.pulsar.yaml

@@ -0,0 +1,18 @@
+version: v1
+managed:
+  enabled: true
+  go_package_prefix:
+    default: github.com/cosmos/cosmos-sdk/testutil/testdata_pulsar
+    except:
+      - buf.build/googleapis/googleapis
+      - buf.build/cosmos/gogo-proto
+      - buf.build/cosmos/cosmos-proto
+    override:
+      buf.build/cosmos/cosmos-sdk: github.com/cosmos/cosmos-sdk/api
+plugins:
+  - name: go-pulsar
+    out: ../testdata_pulsar
+    opt: paths=source_relative
+  - name: go-grpc
+    out: ../testdata_pulsar
+    opt: paths=source_relative

testutil/testdata_pulsar/query.go

@@ -0,0 +1,28 @@
+package testdata_pulsar
+
+import (
+	"context"
+	"fmt"
+)
+
+type QueryImpl struct {
+	UnimplementedQueryServer
+}
+
+func (q QueryImpl) Echo(_ context.Context, request *EchoRequest) (*EchoResponse, error) {
+	return &EchoResponse{Message: request.Message}, nil
+}
+
+func (q QueryImpl) SayHello(_ context.Context, request *SayHelloRequest) (*SayHelloResponse, error) {
+	greeting := fmt.Sprintf("Hello %s!", request.Name)
+	return &SayHelloResponse{Greeting: greeting}, nil
+}
+
+func (q QueryImpl) TestAny(_ context.Context, request *TestAnyRequest) (*TestAnyResponse, error) {
+	return &TestAnyResponse{HasAnimal: &HasAnimal{
+		Animal: request.AnyAnimal,
+		X:      10,
+	}}, nil
+}
+
+var _ QueryServer = QueryImpl{}