From a87e4c16cef5df1ec66da0f4135b11a46309f88d Mon Sep 17 00:00:00 2001
From: jayy04 <103467857+jayy04@users.noreply.github.com>
Date: Thu, 21 Mar 2024 10:01:58 -0400
Subject: [PATCH] [CT-700] only send response when there is at least one update
 (#1216)

---
 .../streaming/grpc/grpc_streaming_manager.go     | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/protocol/streaming/grpc/grpc_streaming_manager.go b/protocol/streaming/grpc/grpc_streaming_manager.go
index 8db6daca6b..b4cea80b57 100644
--- a/protocol/streaming/grpc/grpc_streaming_manager.go
+++ b/protocol/streaming/grpc/grpc_streaming_manager.go
@@ -110,13 +110,15 @@ func (sm *GrpcStreamingManagerImpl) SendOrderbookUpdates(
 			}
 		}
 
-		if err := subscription.srv.Send(
-			&clobtypes.StreamOrderbookUpdatesResponse{
-				Updates:  updatesToSend,
-				Snapshot: snapshot,
-			},
-		); err != nil {
-			idsToRemove = append(idsToRemove, id)
+		if len(updatesToSend) > 0 {
+			if err := subscription.srv.Send(
+				&clobtypes.StreamOrderbookUpdatesResponse{
+					Updates:  updatesToSend,
+					Snapshot: snapshot,
+				},
+			); err != nil {
+				idsToRemove = append(idsToRemove, id)
+			}
 		}
 	}