fix(rpc): maxFeePerGas and maxPriorityFeePerGas for StateSyncTx type

core/types/tx_state_sync.go

@@ -25,7 +25,7 @@ import (
 	"github.com/ethereum/go-ethereum/rlp"
 )
 
-// StateSyncTx is the system transaction of Bor to introduce fetched state sync events from Heimdall
+// StateSyncTx is a system transaction in Bor that introduces state sync events.
 type StateSyncTx struct {
 	StateSyncData []*StateSyncData
 }
@@ -109,5 +109,5 @@ func (tx *StateSyncTx) decode(b []byte) error {
 }
 
 func (tx *StateSyncTx) sigHash(chainID *big.Int) common.Hash {
-	panic("StateSyncTx has no sigHash")
+	panic("sigHash called on StateSyncTx")
 }

graphql/graphql.go

@@ -318,7 +318,7 @@ func (t *Transaction) MaxFeePerGas(ctx context.Context) *hexutil.Big {
 		return nil
 	}
 	switch tx.Type() {
-	case types.DynamicFeeTxType, types.BlobTxType, types.SetCodeTxType:
+	case types.DynamicFeeTxType, types.BlobTxType, types.SetCodeTxType, types.StateSyncTxType:
 		return (*hexutil.Big)(tx.GasFeeCap())
 	default:
 		return nil
@@ -331,7 +331,7 @@ func (t *Transaction) MaxPriorityFeePerGas(ctx context.Context) *hexutil.Big {
 		return nil
 	}
 	switch tx.Type() {
-	case types.DynamicFeeTxType, types.BlobTxType, types.SetCodeTxType:
+	case types.DynamicFeeTxType, types.BlobTxType, types.SetCodeTxType, types.StateSyncTxType:
 		return (*hexutil.Big)(tx.GasTipCap())
 	default:
 		return nil

internal/ethapi/api.go

@@ -1344,6 +1344,12 @@ func newRPCTransaction(tx *types.Transaction, blockHash common.Hash, blockNumber
 			result.GasPrice = (*hexutil.Big)(tx.GasFeeCap())
 		}
 		result.AuthorizationList = tx.SetCodeAuthorizations()
+
+	case types.StateSyncTxType:
+		yparity := hexutil.Uint64(v.Sign())
+		result.YParity = &yparity
+		result.GasFeeCap = (*hexutil.Big)(tx.GasFeeCap())
+		result.GasTipCap = (*hexutil.Big)(tx.GasTipCap())
 	}
 
 	return result