src/main/kotlin/kr/co/vividnext/sodalive/live/room/LiveRoomRepository.kt

@@ -52,6 +52,7 @@ interface LiveRoomQueryRepository {
     fun getDonationTotal(roomId: Long, isLiveCreator: Boolean): Int?
     fun getDonationList(roomId: Long, isLiveCreator: Boolean): List<GetLiveRoomDonationItem>
     fun getRoomActiveAndChannelNameIsNotNull(memberId: Long): List<LiveRoom>
+    fun getActiveRoomIdList(memberId: Long): Int
 }
 
 class LiveRoomQueryRepositoryImpl(
@@ -283,4 +284,17 @@ class LiveRoomQueryRepositoryImpl(
             )
             .fetch()
     }
+
+    override fun getActiveRoomIdList(memberId: Long): Int {
+        return queryFactory
+            .select(liveRoom.id)
+            .from(liveRoom)
+            .where(
+                liveRoom.isActive.isTrue
+                    .and(liveRoom.channelName.isNull)
+                    .and(liveRoom.member.id.eq(memberId))
+            )
+            .fetch()
+            .size
+    }
 }

src/main/kotlin/kr/co/vividnext/sodalive/live/room/LiveRoomService.kt

@@ -247,6 +247,10 @@ class LiveRoomService(
 
     @Transactional
     fun createLiveRoom(coverImage: MultipartFile?, requestString: String, member: Member): CreateLiveRoomResponse {
+        if (repository.getActiveRoomIdList(memberId = member.id!!) >= 3) {
+            throw SodaException("예약 라이브는 최대 3개까지 가능합니다.")
+        }
+
         val request = objectMapper.readValue(requestString, CreateLiveRoomRequest::class.java)
         if (request.coverImageUrl == null && coverImage == null) {
             throw SodaException("커버이미지를 선택해 주세요.")