From c5d513e96d0e8793ef7b56768868b3625a58527f Mon Sep 17 00:00:00 2001
From: Taka Goto <tgoto@8thlight.com>
Date: Wed, 23 Jan 2019 15:25:44 -0600
Subject: [PATCH] fix index out of range on lightSync; hopefully the new
 integration tests will catch them next time :)

---
 pkg/geth/client/rpc_client.go | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/pkg/geth/client/rpc_client.go b/pkg/geth/client/rpc_client.go
index e2adf7c5..76c84494 100644
--- a/pkg/geth/client/rpc_client.go
+++ b/pkg/geth/client/rpc_client.go
@@ -45,11 +45,15 @@ func (client RpcClient) SupportedModules() (map[string]string, error) {
 
 func (client RpcClient) BatchCall(batch []BatchElem) error {
 	var rpcBatch []rpc.BatchElem
-	for index, batchElem := range batch {
-		rpcBatch[index].Result = batchElem.Result
-		rpcBatch[index].Method = batchElem.Method
-		rpcBatch[index].Args = batchElem.Args
-		rpcBatch[index].Error = batchElem.Error
+	for _, batchElem := range batch {
+		var newBatchElem = rpc.BatchElem{
+			Result: batchElem.Result,
+			Method: batchElem.Method,
+			Args:   batchElem.Args,
+			Error:  batchElem.Error,
+		}
+
+		rpcBatch = append(rpcBatch, newBatchElem)
 	}
 	return client.client.BatchCall(rpcBatch)
 }