From fe99c6b6cd5c54a0681f77890180e73c0dd3d665 Mon Sep 17 00:00:00 2001
From: mybloom <baejungeun11@gmail.com>
Date: Fri, 30 Dec 2022 13:35:33 +0900
Subject: [PATCH] =?UTF-8?q?=F0=9F=90=9B=20::=20=ED=91=B8=EC=89=AC=EC=95=8C?=
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---
 .../domain/notification/service/NotificationService.java       | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/main/java/io/github/depromeet/knockknockbackend/domain/notification/service/NotificationService.java b/src/main/java/io/github/depromeet/knockknockbackend/domain/notification/service/NotificationService.java
index 944dc2f3..d5558924 100644
--- a/src/main/java/io/github/depromeet/knockknockbackend/domain/notification/service/NotificationService.java
+++ b/src/main/java/io/github/depromeet/knockknockbackend/domain/notification/service/NotificationService.java
@@ -172,6 +172,9 @@ public void sendInstance(SendInstanceRequest request) {
 
         List<DeviceToken> deviceTokens = getDeviceTokens(request.getGroupId(), sendUserId);
         List<String> tokens = getFcmTokens(deviceTokens);
+        if (tokens.isEmpty()) {
+            return;
+        }
 
         fcmService.sendGroupMessage(
                 tokens, request.getTitle(), request.getContent(), request.getImageUrl());