More nil checks

rpc/api.go

@@ -212,6 +212,9 @@ func (api *EthereumApi) GetRequestReply(req *RpcRequest, reply *interface{}) err
 
 		block := api.xeth().EthBlockByHash(args.Hash)
 		br := NewBlockRes(block, true)
+		if br == nil {
+			*reply = nil
+		}
 
 		if args.Index >= int64(len(br.Transactions)) || args.Index < 0 {
 			return NewValidationError("Index", "does not exist")
@@ -225,6 +228,9 @@ func (api *EthereumApi) GetRequestReply(req *RpcRequest, reply *interface{}) err
 
 		block := api.xeth().EthBlockByNumber(args.BlockNumber)
 		v := NewBlockRes(block, true)
+		if v == nil {
+			*reply = nil
+		}
 
 		if args.Index >= int64(len(v.Transactions)) || args.Index < 0 {
 			return NewValidationError("Index", "does not exist")

rpc/responses.go

@@ -125,8 +125,6 @@ func (b *BlockRes) MarshalJSON() ([]byte, error) {
 }
 
 func NewBlockRes(block *types.Block, fullTx bool) *BlockRes {
-	// TODO respect fullTx flag
-
 	if block == nil {
 		return nil
 	}
@@ -182,6 +180,10 @@ type TransactionRes struct {
 }
 
 func NewTransactionRes(tx *types.Transaction) *TransactionRes {
+	if tx == nil {
+		return nil
+	}
+
 	var v = new(TransactionRes)
 	v.Hash = newHexData(tx.Hash())
 	v.Nonce = newHexNum(tx.Nonce())