diff --git a/src/main/java/org/bdware/consistency/plugin/sharding/MultiPointCooperationExecutor.java b/src/main/java/org/bdware/consistency/plugin/sharding/MultiPointCooperationExecutor.java
index f91fc69..85a8cec 100644
--- a/src/main/java/org/bdware/consistency/plugin/sharding/MultiPointCooperationExecutor.java
+++ b/src/main/java/org/bdware/consistency/plugin/sharding/MultiPointCooperationExecutor.java
@@ -128,29 +128,16 @@ public class MultiPointCooperationExecutor extends AbstractContextContractExecut
                     return new String[]{members[val]};
                 case byFunc:
                     ContractClient client = cmActions.getManager().getClient(req.getContractID());
-
-                    JsonArray membersArr = new JsonArray(members.length);
-                    for (String member : members) {
-                        membersArr.add(member);
-                    }
-
                     JsonObject arg = new JsonObject();
                     arg.addProperty("funcName", routeInfo.funcName);
-                    // func myFunc (currentNode, members, membersCount, sourceArg)
+                    // func myFunc (requester, sourceArg)
                     JsonArray funcArgs = new JsonArray();
-                    funcArgs.add(globalConf.getNodeID());
-                    funcArgs.add(membersArr);
-                    funcArgs.add(membersArr.size());
+                    funcArgs.add(req.getRequester());
                     funcArgs.add(req.getArg());
                     arg.add("funcArgs", funcArgs);
-
                     String routeResultStr = client.executeMethod("", "invokeFunctionWithoutLimit", arg.toString());
-                    JsonObject routeResult = JsonUtil.parseString(routeResultStr).getAsJsonObject();
-                    List<String> nodes = new ArrayList<>();
-                    for (String key: routeResult.keySet()) {
-                        nodes.add(routeResult.get(key).getAsString());
-                    }
-                    return nodes.toArray(new String[]{});
+                    String[] routeResult = JsonUtil.fromJson(routeResultStr, String[].class);
+                    return routeResult;
                 default:
                     return members;
             }