Make gRPC requests go through tendermint Query (#8549)

* Make gRPC requests go through tendermint Query

* Remove commented code

* Dry run in InitChain?

* Save type of first run

* Add metadata in repsonse

* Factorize some code

* Fix lint

* Update comments

* Fix md test

* Fix test expected

* Don't put RunGRPCQuery as clientCtx method

* Update baseapp/grpcserver.go

Co-authored-by: Robert Zaremba <robert@zaremba.ch>

* Address review comments

Co-authored-by: Robert Zaremba <robert@zaremba.ch>

server/grpc/server.go

@@ -8,13 +8,14 @@ import (
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/reflection"
 
+	"github.com/cosmos/cosmos-sdk/client"
 	"github.com/cosmos/cosmos-sdk/server/types"
 )
 
 // StartGRPCServer starts a gRPC server on the given address.
-func StartGRPCServer(app types.Application, address string) (*grpc.Server, error) {
+func StartGRPCServer(clientCtx client.Context, app types.Application, address string) (*grpc.Server, error) {
 	grpcSrv := grpc.NewServer()
-	app.RegisterGRPCServer(grpcSrv)
+	app.RegisterGRPCServer(clientCtx, grpcSrv)
 
 	// Reflection allows external clients to see what services and methods
 	// the gRPC server exposes.

server/grpc/server_test.go

@@ -92,7 +92,7 @@ func (s *IntegrationTestSuite) TestGRPCServer_BankBalance() {
 		grpc.Header(&header),
 	)
 	blockHeight = header.Get(grpctypes.GRPCBlockHeightHeader)
-	s.Require().Equal([]string{"1"}, blockHeight)
+	s.Require().NotEmpty(blockHeight[0]) // blockHeight is []string, first element is block height.
 }
 
 func (s *IntegrationTestSuite) TestGRPCServer_Reflection() {
@@ -124,8 +124,6 @@ func (s *IntegrationTestSuite) TestGRPCServer_GetTxsEvent() {
 			Events: []string{"message.action=send"},
 		},
 	)
-	// TODO Once https://github.com/cosmos/cosmos-sdk/pull/8029 is merged, this
-	// should not error anymore.
 	s.Require().NoError(err)
 }
 
@@ -185,9 +183,9 @@ func (s *IntegrationTestSuite) TestGRPCServerInvalidHeaderHeights() {
 		value   string
 		wantErr string
 	}{
-		{"-1", "height < 0"},
+		{"-1", "\"x-cosmos-block-height\" must be >= 0"},
 		{"9223372036854775808", "value out of range"}, // > max(int64) by 1
-		{"-10", "height < 0"},
+		{"-10", "\"x-cosmos-block-height\" must be >= 0"},
 		{"18446744073709551615", "value out of range"}, // max uint64, which is  > max(int64)
 		{"-9223372036854775809", "value out of range"}, // Out of the range of for negative int64
 	}

server/start.go

@@ -318,7 +318,7 @@ func startInProcess(ctx *Context, clientCtx client.Context, appCreator types.App
 		grpcWebSrv *http.Server
 	)
 	if config.GRPC.Enable {
-		grpcSrv, err = servergrpc.StartGRPCServer(app, config.GRPC.Address)
+		grpcSrv, err = servergrpc.StartGRPCServer(clientCtx, app, config.GRPC.Address)
 		if err != nil {
 			return err
 		}

server/types/app.go

@@ -38,7 +38,7 @@ type (
 
 		// RegisterGRPCServer registers gRPC services directly with the gRPC
 		// server.
-		RegisterGRPCServer(grpc.Server)
+		RegisterGRPCServer(client.Context, grpc.Server)
 
 		// RegisterTxService registers the gRPC Query service for tx (such as tx
 		// simulation, fetching txs by hash...).