feat(chat): 채팅방 채팅 메세지 전달 로직 디버깅 (#78)

[jaehyeok-code]

Summary by CodeRabbit

• Bug Fixes
  • 채팅 전송 시 더 이상 임시 값이 아닌 실제 저장된 메시지의 내용·유형·생성 시간이 전송/표시됩니다.
  • 메시지 ID와 타임스탬프가 일관되게 반영되어 재연결·다중 클라이언트 환경에서 표시 오류가 줄었습니다.
  • 전송 과정에 트랜잭션을 적용해 메시지 누락·중복 가능성을 낮추고 신뢰성을 개선했습니다.

[coderabbitai]

Caution

Review failed

The pull request is closed.

Walkthrough

ChatMessagingController의 send 핸들러에 @transactional을 추가하고, 메시지를 실제로 저장한 후 저장 결과로부터 응답 페이로드를 구성하도록 변경했다. 이후 STOMP 브로드캐스트와 Redis 퍼블리시 경로는 유지된다. 메서드 시그니처는 동일하며 어노테이션만 추가됐다.

Changes

Cohort / File(s)	Change Summary
채팅 전송 트랜잭션/영속화 backendProject/src/main/java/likelion/mlb/backendProject/domain/chat/controller/ChatMessagingController.java	send 메서드에 @Transactional 추가. chatMessageService.saveUserMessage(roomId, userId, req.getContent())로 영속화 후, 반환된 ChatMessage 기반으로 페이로드(id, type, content, createdAt 등) 구성. STOMP /topic/chat/{roomId} 전송과 Redis 퍼블리시는 기존 유지.

Sequence Diagram(s)

sequenceDiagram
    autonumber
    actor Client
    participant Controller as ChatMessagingController
    participant Service as ChatMessageService
    participant Broker as MessagingTemplate (STOMP)
    participant Redis as ChatRedisPublisher

    Client->>Controller: SEND /app/chat/{roomId} (ChatSendRequest)
    rect rgba(200,230,255,0.25)
    note right of Controller: @Transactional
    Controller->>Service: saveUserMessage(roomId, userId, content)
    Service-->>Controller: ChatMessage(saved)
    end
    Controller->>Broker: convertAndSend(/topic/chat/{roomId}, payload from saved)
    Controller->>Redis: publish(payload)
    Broker-->>Client: MESSAGE /topic/chat/{roomId}

Loading

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

Possibly related PRs

• [Feat] 채팅 메세지 전달 경로 변경  #149: 동일 send 흐름에서 로컬 브로드캐스트 및 Redis 전파 로직을 조정한 변경과 연관.
• feat(chat): 채팅방 채팅 메세지 전달 로직 로그적용 (#78) #150: ChatMessagingController 전송 경로에서 페이로드 구성 직후 동작을 수정한 변경과 관련.
• feat(chat): 채팅방 채팅 메세지 전달 로직 변경 (#78) #148: 동일 컨트롤러의 메시지 구성/전달 로직을 다룬 변경과 연계됨.

Suggested labels

enhancement

Suggested reviewers

• hwichoi0317
• Kim-Jaehyun0328
• wjkim9
• roode1017

Poem

삐빅, 토끼는 톡톡 메시지 저장해요 📝
임시 말풍선은 이제 그만, DB에 꾹—담아요
트랜잭션 포근히 감싸고
브로커-레디스 타고 폴짝!
방마다 번지는 말의 씨앗,
밤하늘 별처럼 반짝✨

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📥 Commits

Reviewing files that changed from the base of the PR and between 6fc4c7c and d0a025b.

📒 Files selected for processing (1)

• backendProject/src/main/java/likelion/mlb/backendProject/domain/chat/controller/ChatMessagingController.java (3 hunks)

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