푸시 - 보내기 성공/실패 로그 추가

src/main/kotlin/kr/co/vividnext/sodalive/fcm/FcmService.kt

@@ -3,11 +3,14 @@ package kr.co.vividnext.sodalive.fcm
 import com.google.firebase.messaging.FirebaseMessaging
 import com.google.firebase.messaging.MulticastMessage
 import com.google.firebase.messaging.Notification
+import org.slf4j.LoggerFactory
 import org.springframework.scheduling.annotation.Async
 import org.springframework.stereotype.Service
 
 @Service
 class FcmService {
+    private val logger = LoggerFactory.getLogger(this::class.java)
+
     @Async
     fun send(
         tokens: List<String>,
@@ -47,6 +50,8 @@ class FcmService {
             multicastMessage.putData("content_id", contentId.toString())
         }
 
-        FirebaseMessaging.getInstance().sendEachForMulticast(multicastMessage.build())
+        val response = FirebaseMessaging.getInstance().sendEachForMulticast(multicastMessage.build())
+        logger.info("보내기 성공: ${response.successCount}")
+        logger.info("보내기 실패: ${response.failureCount}")
     }
 }