Feat: 사용자가 속한 팀 목록 조회 API 구현

src/main/java/com/codiary/backend/domain/member/controller/MemberController.java

@@ -101,4 +101,6 @@ public ApiResponse<MemberResponseDTO.DayCalendarDTO> getCalendar(@Authentication
         Map<Project, List<Post>> postList = memberQueryService.getPostsByDay(memberId, date);
         return ApiResponse.onSuccess(SuccessStatus.MEMBER_OK, MemberConverter.toDayCalendarResponseDto(postList));
     }
+
+
 }

src/main/java/com/codiary/backend/domain/member/dto/response/MemberResponseDTO.java

@@ -115,4 +115,6 @@ public record MonthCalendarDTO(
     public record DayCalendarDTO(
             Map<String, List<PostResponseDTO.PostTitleResponseDTO>> postsByDate) {
     }
+
+
 }

src/main/java/com/codiary/backend/domain/member/service/MemberQueryService.java

@@ -53,4 +53,5 @@ public Map<Project, List<Post>> getPostsByDay(Long memberId, LocalDate date) {
         Member member = memberRepository.findById(memberId).orElseThrow(() -> new GeneralException(ErrorStatus.MEMBER_NOT_FOUND));
         return postRepository.findPostsForCalendar(member.getMemberId(), date);
     }
+
 }

src/main/java/com/codiary/backend/domain/team/controller/TeamController.java

@@ -1,6 +1,9 @@
 package com.codiary.backend.domain.team.controller;
 
 import com.codiary.backend.domain.alert.service.AlertService;
+import com.codiary.backend.domain.member.converter.MemberConverter;
+import com.codiary.backend.domain.member.dto.response.MemberResponseDTO;
+import com.codiary.backend.domain.member.entity.Member;
 import com.codiary.backend.domain.member.security.CustomMemberDetails;
 import com.codiary.backend.domain.team.converter.TeamConverter;
 import com.codiary.backend.domain.team.dto.request.TeamRequestDTO;
@@ -167,6 +170,15 @@ public ApiResponse<TeamResponseDTO.TeamPreviewListDTO> findTeams(){
         return ApiResponse.onSuccess(SuccessStatus.TEAM_OK, TeamConverter.toTeamPreviewListDTO(teams));
     }
 
+
+    @GetMapping("/{member_id}/myTeam")
+    @Operation(summary = "사용자의 팀 목록 조회", description = "사용자의 팀 목록 조회 기능")
+    public ApiResponse<List<TeamResponseDTO.SimpleTeamDTO>> getMemberTeam(@PathVariable("member_id") Long memberId, @AuthenticationPrincipal CustomMemberDetails memberDetails) {
+        List<TeamMember> teams = teamMemberService.getMemberTeam(memberId, memberDetails.getId());
+        return ApiResponse.onSuccess(SuccessStatus.MEMBER_OK, TeamConverter.toSimpleTeamListResponseDTO(teams));
+    }
+
+
     @GetMapping("/check_duplicate")
     @Operation(summary = "팀 이름 중복 확인 API", description = "팀 이름 중복을 확인합니다.")
     public ApiResponse<String> checkDuplicateTeamName(@RequestParam("team_name") String teamName){

src/main/java/com/codiary/backend/domain/team/converter/TeamConverter.java

@@ -1,6 +1,9 @@
 package com.codiary.backend.domain.team.converter;
 
 import com.codiary.backend.domain.member.converter.MemberConverter;
+import com.codiary.backend.domain.project.converter.ProjectConverter;
+import com.codiary.backend.domain.project.dto.response.ProjectResponseDTO;
+import com.codiary.backend.domain.project.entity.Project;
 import com.codiary.backend.domain.team.dto.response.TeamResponseDTO;
 import com.codiary.backend.domain.team.entity.Team;
 import com.codiary.backend.domain.team.entity.TeamBannerImage;
@@ -11,6 +14,8 @@
 import java.util.stream.Collectors;
 import java.util.stream.IntStream;
 
+import static com.codiary.backend.domain.team.entity.QTeamMember.teamMember;
+
 public class TeamConverter {
     public static TeamResponseDTO.TeamDTO toTeamResponseDto(Team team) {
         return TeamResponseDTO.TeamDTO.builder()
@@ -114,4 +119,19 @@ public static TeamResponseDTO.TeamPreviewListDTO toTeamPreviewListDTO(List<Team>
                 .build();
     }
 
+    public static TeamResponseDTO.SimpleTeamDTO toSimpleTeamResponseDTO(TeamMember teamMember) {
+        return TeamResponseDTO.SimpleTeamDTO.builder()
+                .teamId(teamMember.getTeam().getTeamId())
+                .teamName(teamMember.getTeam().getName())
+                .build();
+    }
+
+    public static List<TeamResponseDTO.SimpleTeamDTO> toSimpleTeamListResponseDTO(List<TeamMember> teams) {
+        return teams.stream()
+                .map(TeamConverter::toSimpleTeamResponseDTO)
+                .collect(Collectors.toList());
+    }
+
+
+
 }

src/main/java/com/codiary/backend/domain/team/repository/TeamMemberRepository.java

@@ -18,4 +18,6 @@ public interface TeamMemberRepository extends JpaRepository<TeamMember, Long> {
     Long countTeamMembersByTeamAndTeamMemberRole(Team team, TeamMemberRole teamMemberRole);
 
     List<TeamMember> findTeamMembersByTeam(Team team);
+
+    List<TeamMember> findByMember(Member member);
 }

src/main/java/com/codiary/backend/domain/team/repository/TeamRepository.java

@@ -1,5 +1,6 @@
 package com.codiary.backend.domain.team.repository;
 
+import com.codiary.backend.domain.member.entity.Member;
 import com.codiary.backend.domain.team.entity.Team;
 import org.springframework.data.jpa.repository.JpaRepository;
 

src/main/java/com/codiary/backend/domain/team/service/TeamMemberService.java

@@ -14,6 +14,8 @@
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
+import java.util.List;
+
 @Service
 @RequiredArgsConstructor
 @Transactional(readOnly = true)
@@ -96,4 +98,14 @@ public Team getTeamMember(Long teamId){
         return teamRepository.findByIdWithTeamMemberList(teamId)
                 .orElseThrow(() -> new GeneralException(ErrorStatus.TEAM_NOT_FOUND));
     }
+
+    public List<TeamMember> getMemberTeam(Long memberId, Long currentId) {
+        //validation
+        Member member = memberRepository.findById(memberId)
+                .orElseThrow(() -> new GeneralException(ErrorStatus.MEMBER_NOT_FOUND));
+        Member currentMember = memberRepository.findById(currentId)
+                .orElseThrow(() -> new GeneralException(ErrorStatus.MEMBER_NOT_FOUND));
+
+        return teamMemberRepository.findByMember(member);
+    }
 }

src/main/java/com/codiary/backend/domain/team/service/TeamService.java

@@ -2,6 +2,7 @@
 
 import com.codiary.backend.domain.member.entity.Member;
 import com.codiary.backend.domain.member.repository.MemberRepository;
+import com.codiary.backend.domain.project.entity.Project;
 import com.codiary.backend.domain.team.dto.request.TeamRequestDTO;
 import com.codiary.backend.domain.team.entity.Team;
 import com.codiary.backend.domain.team.entity.TeamBannerImage;