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[Fix] 무한 스크롤을 위한 nextCursor 추가 #111

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Merged
yosong6729 merged 1 commit into from
Jan 26, 2025
Merged

[Fix] 무한 스크롤을 위한 nextCursor 추가 #111

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1 change: 1 addition & 0 deletions src/main/java/com/manchui/domain/dto/chat/ChatMessageSliceResponse.java
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Original file line number Diff line number Diff line change
Expand Up @@ -11,4 +11,5 @@ public class ChatMessageSliceResponse {

private List<ChatMessageResponse> chatMessageResponseList;
private Boolean hasNext;
private String nextCursor;
}
6 changes: 5 additions & 1 deletion src/main/java/com/manchui/domain/service/ChatMessageService.java
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Original file line number Diff line number Diff line change
Expand Up @@ -91,6 +91,10 @@ public Mono<ChatMessageSliceResponse> findChatList(CustomUserDetails customUserD
.map(messages -> {
// limit + 1개 중 실제 limit개만 표시하고, 나머지 1개로 hasNext 판단
boolean hasNext = messages.size() > limit;
String nextCursor = null;
if(hasNext){
nextCursor = messages.get(limit - 1).get_id();
}
List<ChatMessageResponse> content = messages.stream().limit(limit)
.map(chatMessage ->
new ChatMessageResponse(
Expand All @@ -101,7 +105,7 @@ public Mono<ChatMessageSliceResponse> findChatList(CustomUserDetails customUserD
chatMessage.getCreatedAt()
)).collect(Collectors.toList());

return new ChatMessageSliceResponse(content, hasNext);
return new ChatMessageSliceResponse(content, hasNext, nextCursor);
});
}
}
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