[SAMBAD-204] 초대 코드 기반 모임명 조회 API 추가 (#72)

src/main/java/org/depromeet/sambad/moring/meeting/meeting/application/MeetingService.java

@@ -3,9 +3,12 @@
 import java.util.List;
 
 import org.depromeet.sambad.moring.meeting.meeting.domain.Meeting;
+import org.depromeet.sambad.moring.meeting.meeting.domain.MeetingCode;
 import org.depromeet.sambad.moring.meeting.meeting.domain.TypesPerMeeting;
+import org.depromeet.sambad.moring.meeting.meeting.presentation.exception.MeetingNotFoundException;
 import org.depromeet.sambad.moring.meeting.meeting.presentation.request.MeetingPersistRequest;
 import org.depromeet.sambad.moring.meeting.meeting.presentation.response.MeetingResponse;
+import org.depromeet.sambad.moring.meeting.meeting.presentation.response.MeetingNameResponse;
 import org.depromeet.sambad.moring.meeting.member.application.MeetingMemberRepository;
 import org.depromeet.sambad.moring.meeting.member.domain.MeetingMember;
 import org.depromeet.sambad.moring.meeting.member.domain.MeetingMemberValidator;
@@ -47,6 +50,13 @@ public MeetingResponse getMeetingResponse(Long userId) {
 		return MeetingResponse.from(meetings);
 	}
 
+	public MeetingNameResponse getMeetingNameByCode(String code) {
+		Meeting meeting = meetingRepository.findByCode(MeetingCode.from(code))
+			.orElseThrow(MeetingNotFoundException::new);
+
+		return MeetingNameResponse.from(meeting);
+	}
+
 	private void addTypesToMeeting(MeetingPersistRequest request, Meeting meeting) {
 		List<TypesPerMeeting> types = meetingTypeRepository.findByIdIn(request.meetingTypeIds())
 			.stream()

src/main/java/org/depromeet/sambad/moring/meeting/meeting/presentation/MeetingController.java

@@ -11,13 +11,15 @@
 import org.depromeet.sambad.moring.meeting.meeting.presentation.request.MeetingPersistRequest;
 import org.depromeet.sambad.moring.meeting.meeting.presentation.response.MeetingPersistResponse;
 import org.depromeet.sambad.moring.meeting.meeting.presentation.response.MeetingResponse;
+import org.depromeet.sambad.moring.meeting.meeting.presentation.response.MeetingNameResponse;
 import org.depromeet.sambad.moring.meeting.meeting.presentation.response.MeetingTypeResponse;
 import org.depromeet.sambad.moring.user.presentation.resolver.UserId;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
 
 import io.swagger.v3.oas.annotations.Operation;
@@ -47,6 +49,18 @@ public ResponseEntity<MeetingResponse> getMeetings(@UserId Long userId) {
 		return ResponseEntity.ok(response);
 	}
 
+	@Operation(summary = "초대 코드 기반 모임명 조회", description = "초대 코드를 기반으로 모임명을 조회하며, 모임 존재 여부를 검증합니다.")
+	@ApiResponses({
+		@ApiResponse(responseCode = "200", description = "모임명 조회 성공"),
+		@ApiResponse(responseCode = "404", description = "MEETING_NOT_FOUND"),
+	})
+	@GetMapping("/name")
+	public ResponseEntity<MeetingNameResponse> getMeetingName(@RequestParam String code) {
+		MeetingNameResponse response = meetingService.getMeetingNameByCode(code);
+
+		return ResponseEntity.ok(response);
+	}
+
 	@Operation(summary = "모임 생성", description = "모임을 생성합니다.")
 	@ApiResponses({
 		@ApiResponse(responseCode = "201", description = "모임 생성 성공"),

src/main/java/org/depromeet/sambad/moring/meeting/meeting/presentation/response/MeetingNameResponse.java

@@ -0,0 +1,16 @@
+package org.depromeet.sambad.moring.meeting.meeting.presentation.response;
+
+import static io.swagger.v3.oas.annotations.media.Schema.RequiredMode.*;
+
+import org.depromeet.sambad.moring.meeting.meeting.domain.Meeting;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+
+public record MeetingNameResponse(
+	@Schema(description = "모임명", example = "삼밧드의 모험", requiredMode = REQUIRED)
+	String name
+) {
+	public static MeetingNameResponse from(Meeting meeting) {
+		return new MeetingNameResponse(meeting.getName());
+	}
+}