Add grpc bank balance queries withelist

demo/app/wasm/grpc_whitelist.go

@@ -4,6 +4,7 @@ import (
 	wasmkeeper "github.com/CosmWasm/wasmd/x/wasm/keeper"
 	"github.com/cosmos/cosmos-sdk/baseapp"
 	"github.com/cosmos/cosmos-sdk/codec"
+	banktypes "github.com/cosmos/cosmos-sdk/x/bank/types"
 	minttypes "github.com/cosmos/cosmos-sdk/x/mint/types"
 )
 
@@ -23,6 +24,9 @@ func RegisterGrpcQueries(bApp *baseapp.BaseApp, appCodec codec.Codec) []wasmkeep
 // WhitelistedGrpcQuery returns the whitelisted Grpc queries
 func WhitelistedGrpcQuery() wasmkeeper.AcceptedQueries {
 	return wasmkeeper.AcceptedQueries{
+		// bank
+		"/cosmos.bank.v1beta1.Query/AllBalances": &banktypes.QueryAllBalancesResponse{},
+		"/cosmos.bank.v1beta1.Query/Balance":     &banktypes.QueryBalanceResponse{},
 		// mint
 		"/cosmos.mint.v1beta1.Query/Params": &minttypes.QueryParamsResponse{},
 	}