fix: grpc-gateway error codes (#9015)

* update grpc query handler

* try fix http response error codes

* add test

* add changelog

Co-authored-by: Alessio Treglia <alessio@tendermint.com>
Co-authored-by: Amaury <1293565+amaurym@users.noreply.github.com>

client/query.go

@@ -6,6 +6,8 @@ import (
 	"strings"
 
 	"github.com/pkg/errors"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
 
 	abci "github.com/tendermint/tendermint/abci/types"
 	tmbytes "github.com/tendermint/tendermint/libs/bytes"
@@ -13,6 +15,7 @@ import (
 
 	"github.com/cosmos/cosmos-sdk/store/rootmulti"
 	sdk "github.com/cosmos/cosmos-sdk/types"
+	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
 )
 
 // GetNode returns an RPC client. If the context's client is not defined, an
@@ -84,7 +87,7 @@ func (ctx Context) queryABCI(req abci.RequestQuery) (abci.ResponseQuery, error)
 	}
 
 	if !result.Response.IsOK() {
-		return abci.ResponseQuery{}, errors.New(result.Response.Log)
+		return abci.ResponseQuery{}, sdkErrorToGRPCError(result.Response)
 	}
 
 	// data from trusted node or subspace query doesn't need verification
@@ -95,6 +98,19 @@ func (ctx Context) queryABCI(req abci.RequestQuery) (abci.ResponseQuery, error)
 	return result.Response, nil
 }
 
+func sdkErrorToGRPCError(resp abci.ResponseQuery) error {
+	switch resp.Code {
+	case sdkerrors.ErrInvalidRequest.ABCICode():
+		return status.Error(codes.InvalidArgument, resp.Log)
+	case sdkerrors.ErrUnauthorized.ABCICode():
+		return status.Error(codes.Unauthenticated, resp.Log)
+	case sdkerrors.ErrKeyNotFound.ABCICode():
+		return status.Error(codes.NotFound, resp.Log)
+	default:
+		return status.Error(codes.Unknown, resp.Log)
+	}
+}
+
 // query performs a query to a Tendermint node with the provided store name
 // and path. It returns the result and height of the query upon success
 // or an error if the query fails.