use ipld-eth-statedb for eth_call and graphql endpoints

pkg/graphql/graphql.go

@@ -29,7 +29,6 @@ import (
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/common/hexutil"
 	"github.com/ethereum/go-ethereum/core/rawdb"
-	"github.com/ethereum/go-ethereum/core/state"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/eth/filters"
 	"github.com/ethereum/go-ethereum/rlp"
@@ -51,8 +50,8 @@ type Account struct {
 }
 
 // getState fetches the StateDB object for an account.
-func (a *Account) getState(ctx context.Context) (*state.StateDB, error) {
-	state, _, err := a.backend.StateAndHeaderByNumberOrHash(ctx, a.blockNrOrHash)
+func (a *Account) getState(ctx context.Context) (*ipld_eth_statedb.StateDB, error) {
+	state, _, err := a.backend.IPLDStateDBAndHeaderByNumberOrHash(ctx, a.blockNrOrHash)
 	return state, err
 }
 

pkg/graphql/service.go

@@ -81,7 +81,7 @@ func (s *Service) Start(server *p2p.Server) error {
 	return nil
 }
 
-// newHandler returns a new `http.Handler` that will answer GraphQL queries.
+// NewHandler returns a new `http.Handler` that will answer GraphQL queries.
 // It additionally exports an interactive query browser on the / endpoint.
 func NewHandler(backend *eth.Backend) (http.Handler, error) {
 	q := Resolver{backend}