Merge branch 'be/feat/120-autoLabeling' into 'be/develop'

Be/feat/120 autoLabeling

See merge request s11-s-project/S11P21S002!41

backend/src/main/java/com/worlabel/domain/folder/repository/FolderRepository.java

@@ -5,11 +5,14 @@ import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.stereotype.Repository;
 
 import java.util.List;
+import java.util.Optional;
 
 @Repository
 public interface FolderRepository extends JpaRepository<Folder, Integer> {
 
-    List<Folder> findAllByParentIsNull();
+    List<Folder> findAllByProjectIdAndParentIsNull(Integer projectId);
+
+    Optional<Folder> findAllByProjectIdAndId(Integer projectId, Integer folderId);
 
     boolean existsByIdAndProjectId(Integer folderId, Integer projectId);
 }

backend/src/main/java/com/worlabel/domain/folder/service/FolderService.java

@@ -33,7 +33,7 @@ public class FolderService {
 
         Folder parent = null;
         if (folderRequest.getParentId() != 0) {
-            parent = getFolder(folderRequest.getParentId());
+            parent = getFolder(folderRequest.getParentId(),projectId);
         }
 
         Folder folder = Folder.of(folderRequest.getTitle(), parent, project);
@@ -51,9 +51,9 @@ public class FolderService {
 
         // 최상위 폴더
         if (folderId == 0) {
-            return FolderResponse.from(folderRepository.findAllByParentIsNull());
+            return FolderResponse.from(folderRepository.findAllByProjectIdAndParentIsNull(projectId));
         } else {
-            return FolderResponse.from(getFolder(folderId));
+            return FolderResponse.from(getFolder(folderId,projectId));
         }
     }
 
@@ -62,7 +62,7 @@ public class FolderService {
      */
     public FolderResponse updateFolder(final Integer memberId, final Integer projectId, final Integer folderId, final FolderRequest updatedFolderRequest) {
         checkUnauthorized(memberId, projectId);
-        Folder folder = getFolder(folderId);
+        Folder folder = getFolder(folderId,projectId);
 
         Folder parentFolder = folderRepository.findById(updatedFolderRequest.getParentId())
                 .orElse(null);
@@ -77,7 +77,7 @@ public class FolderService {
      */
     public void deleteFolder(final Integer memberId, final Integer projectId, final Integer folderId) {
         checkUnauthorized(memberId, projectId);
-        Folder folder = getFolder(folderId);
+        Folder folder = getFolder(folderId,projectId);
         folderRepository.delete(folder);
     }
 
@@ -86,8 +86,8 @@ public class FolderService {
                 .orElseThrow(() -> new CustomException(ErrorCode.PROJECT_NOT_FOUND));
     }
 
-    private Folder getFolder(final Integer folderId) {
+    private Folder getFolder(final Integer folderId, final Integer projectId) {
-        return folderRepository.findById(folderId)
+        return folderRepository.findAllByProjectIdAndId(projectId,folderId)
                 .orElseThrow(() -> new CustomException(ErrorCode.FOLDER_NOT_FOUND));
     }
 
@@ -98,7 +98,7 @@ public class FolderService {
     }
 
     private void checkExistParticipant(final Integer memberId, final Integer projectId) {
-        if (participantRepository.existsByMemberIdAndProjectId(memberId, projectId)) {
+        if (!participantRepository.existsByMemberIdAndProjectId(memberId, projectId)) {
             throw new CustomException(ErrorCode.BAD_REQUEST);
         }
     }

backend/src/main/java/com/worlabel/domain/image/repository/ImageRepository.java

@@ -2,10 +2,20 @@ package com.worlabel.domain.image.repository;
 
 import com.worlabel.domain.image.entity.Image;
 import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.query.Param;
 
+import java.util.List;
 import java.util.Optional;
 
 public interface ImageRepository extends JpaRepository<Image, Long> {
 
     Optional<Image> findByIdAndFolderId(Long imageId, Integer folderId);
+
+    // TODO: N + 1
+    @Query("select i from Image i " +
+            "join fetch i.folder f " +
+            "join fetch f.project p " +
+            "where p.id = :projectId")
+    List<Image> findImagesByProjectId(@Param("projectId") Integer projectId);
 }

backend/src/main/java/com/worlabel/domain/image/service/ImageService.java

@@ -90,7 +90,7 @@ public class ImageService {
     }
 
     private void checkEditorParticipant(final Integer memberId, final Integer projectId) {
-        if (!participantRepository.doesParticipantUnauthorizedExistByMemberIdAndProjectId(projectId, memberId)) {
+        if (participantRepository.doesParticipantUnauthorizedExistByMemberIdAndProjectId(memberId,projectId)) {
             throw new CustomException(ErrorCode.PARTICIPANT_UNAUTHORIZED);
         }
     }

backend/src/main/java/com/worlabel/domain/label/controller/LabelController.java

@@ -0,0 +1,56 @@
+package com.worlabel.domain.label.controller;
+
+import com.worlabel.domain.label.service.LabelService;
+import com.worlabel.global.annotation.CurrentUser;
+import com.worlabel.global.config.swagger.SwaggerApiError;
+import com.worlabel.global.config.swagger.SwaggerApiSuccess;
+import com.worlabel.global.exception.ErrorCode;
+import com.worlabel.global.response.BaseResponse;
+import com.worlabel.global.response.SuccessResponse;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+
+@Slf4j
+@RestController
+@RequiredArgsConstructor
+@Tag(name = "레이블링 관련 API")
+@RequestMapping("/api/projects/{project_id}/label")
+public class LabelController {
+
+    private final LabelService labelService;
+
+    @Operation(summary = "프로젝트 단위 오토레이블링", description = "해당 프로젝트 이미지를 오토레이블링합니다.")
+    @SwaggerApiSuccess(description = "해당 프로젝트가 오토 레이블링 됩니다.")
+    @SwaggerApiError({ErrorCode.EMPTY_REQUEST_PARAMETER, ErrorCode.SERVER_ERROR})
+    @PostMapping("/auto")
+    public BaseResponse<Void> projectAutoLabeling(
+            @CurrentUser final Integer memberId,
+            @PathVariable("project_id") final Integer projectId
+    ) {
+        labelService.autoLabeling(projectId, memberId);
+        return SuccessResponse.empty();
+    }
+
+    @Operation(summary = "이미지 단위 레이블링", description = "진행한 레이블링을 저장합니다.")
+    @SwaggerApiSuccess(description = "해당 이미지에 대한 레이블링을 저장합니다.")
+    @SwaggerApiError({ErrorCode.EMPTY_REQUEST_PARAMETER, ErrorCode.SERVER_ERROR})
+    @PostMapping("/image/{image_id}")
+    public BaseResponse<Void> imageLabeling(
+            @CurrentUser final Integer memberId,
+            @PathVariable("project_id") final Integer projectId,
+            @PathVariable("image_id") final Integer imageId
+    ) {
+        labelService.save(imageId);
+        return SuccessResponse.empty();
+    }
+    
+    
+
+}

backend/src/main/java/com/worlabel/domain/label/entity/Label.java

@@ -41,4 +41,12 @@ public class Label extends BaseEntity {
 //    @ManyToOne(fetch = FetchType.LAZY)
 //    @JoinColumn(name = "label_category_id")
 //    private LabelCategory labelCategory;
+
+    public static Label of(String jsonUrl, Image image) {
+        Label label = new Label();
+        label.url = jsonUrl;
+        label.image = image;
+        return label;
+    }
+
 }

backend/src/main/java/com/worlabel/domain/label/entity/dto/AutoLabelingRequest.java

@@ -0,0 +1,26 @@
+package com.worlabel.domain.label.entity.dto;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import lombok.*;
+
+import java.util.List;
+
+@Getter
+@NoArgsConstructor(access = AccessLevel.PRIVATE)
+@AllArgsConstructor(access = AccessLevel.PRIVATE)
+public class AutoLabelingRequest {
+
+    @JsonProperty("project_id")
+    private Integer projectId;
+
+    @JsonProperty("image_list")
+    private List<ImageRequest> imageList;
+
+    // private Double confThreshold
+    // private Double iouThreshold;
+    // List<?> classes
+
+    public static AutoLabelingRequest of(final Integer projectId, final List<ImageRequest> imageList) {
+        return new AutoLabelingRequest(projectId, imageList);
+    }
+}

backend/src/main/java/com/worlabel/domain/label/entity/dto/AutoLabelingResponse.java

@@ -0,0 +1,17 @@
+package com.worlabel.domain.label.entity.dto;
+
+import lombok.*;
+
+@Getter
+@NoArgsConstructor(access = AccessLevel.PRIVATE)
+@AllArgsConstructor(access = AccessLevel.PRIVATE)
+public class AutoLabelingResponse {
+
+    private Long imageId;
+    private String imageUrl;
+    private String data; // JSON 형식의 데이터를 그대로 저장
+
+    public static AutoLabelingResponse of(Long imageId, String title, String data) {
+        return new AutoLabelingResponse(imageId, title, data);
+    }
+}

backend/src/main/java/com/worlabel/domain/label/entity/dto/ImageRequest.java

@@ -0,0 +1,31 @@
+package com.worlabel.domain.label.entity.dto;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.worlabel.domain.image.entity.Image;
+import io.swagger.v3.oas.annotations.media.Schema;
+import jakarta.validation.constraints.NotEmpty;
+import lombok.AccessLevel;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@Schema(name = "오토 레이블링 요청 dto", description = "오토 레이블링 요청 DTO")
+@NoArgsConstructor(access = AccessLevel.PRIVATE)
+@AllArgsConstructor
+@Getter
+public class ImageRequest {
+
+    @Schema(description = "이미지 PK", example = "2")
+    @NotEmpty(message = "이미지 PK를 입력하세요")
+    @JsonProperty("image_id")
+    private Long imageId;
+
+    @Schema(description = "이미지 url", example = "image.png")
+    @NotEmpty(message = "이미지 url을 입력하세요")
+    @JsonProperty("image_url")
+    private String imageUrl;
+
+    public static ImageRequest of(Image image){
+        return new ImageRequest(image.getId(), image.getImageUrl());
+    }
+}

backend/src/main/java/com/worlabel/domain/label/repository/LabelRepository.java

@@ -0,0 +1,11 @@
+package com.worlabel.domain.label.repository;
+
+import com.worlabel.domain.label.entity.Label;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+import java.util.Optional;
+
+public interface LabelRepository extends JpaRepository<Label, Long> {
+
+    Optional<Label> findByImageId(Long imageId);
+}

backend/src/main/java/com/worlabel/domain/label/service/LabelService.java

@@ -0,0 +1,165 @@
+package com.worlabel.domain.label.service;
+
+import com.google.gson.*;
+import com.worlabel.domain.image.entity.Image;
+import com.worlabel.domain.image.repository.ImageRepository;
+import com.worlabel.domain.label.entity.Label;
+import com.worlabel.domain.label.entity.dto.AutoLabelingRequest;
+import com.worlabel.domain.label.entity.dto.AutoLabelingResponse;
+import com.worlabel.domain.label.entity.dto.ImageRequest;
+import com.worlabel.domain.label.repository.LabelRepository;
+import com.worlabel.domain.participant.repository.ParticipantRepository;
+import com.worlabel.domain.project.entity.ProjectType;
+import com.worlabel.domain.project.repository.ProjectRepository;
+import com.worlabel.global.exception.CustomException;
+import com.worlabel.global.exception.ErrorCode;
+import com.worlabel.global.service.S3UploadService;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.web.client.RestTemplateBuilder;
+import org.springframework.http.HttpEntity;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpMethod;
+import org.springframework.http.ResponseEntity;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.web.client.RestTemplate;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Optional;
+
+@Slf4j
+@Service
+@Transactional
+@RequiredArgsConstructor
+public class LabelService {
+
+    private final ParticipantRepository participantRepository;
+    private final ProjectRepository projectRepository;
+    private final LabelRepository labelRepository;
+    private final S3UploadService s3UploadService;
+    private final ImageRepository imageRepository;
+    private final RestTemplate restTemplate;
+    private final Gson gson;
+
+
+    /**
+     * AI SERVER 주소
+     */
+    @Value("${ai.server}")
+    private String aiServer;
+
+    public void autoLabeling(final Integer projectId, final Integer memberId) {
+        checkEditorExistParticipant(memberId, projectId);
+
+        ProjectType projectType = getType(projectId);
+        log.debug("{}번 프로젝트 이미지 {} 진행 ", projectId, projectType);
+
+        List<Image> imageList = imageRepository.findImagesByProjectId(projectId);
+        List<ImageRequest> imageRequestList = imageList.stream().map(ImageRequest::of).toList();
+        AutoLabelingRequest autoLabelingRequest = AutoLabelingRequest.of(projectId, imageRequestList);
+
+        List<AutoLabelingResponse> autoLabelingResponseList = sendRequestToApi(autoLabelingRequest, projectType.getValue(), projectId);
+        for (int index = 0; index < autoLabelingResponseList.size(); index++) {
+            AutoLabelingResponse response = autoLabelingResponseList.get(index);
+            Image image = imageList.get(index);
+            String uploadedUrl = s3UploadService.uploadJson(response.getData(), response.getImageUrl());
+
+            Label label = labelRepository.findByImageId(response.getImageId())
+                    .orElseGet(() -> Label.of(uploadedUrl, image));
+            labelRepository.save(label);
+        }
+    }
+
+    private List<AutoLabelingResponse> sendRequestToApi(AutoLabelingRequest autoLabelingRequest, String apiEndpoint, int projectId) {
+        String url = createApiUrl("api/yolo/detection/predict");
+
+        // RestTemplate을 동적으로 생성하여 사용
+        HttpHeaders headers = createJsonHeaders();
+
+        // 요청 본문 설정
+        HttpEntity<AutoLabelingRequest> request = new HttpEntity<>(autoLabelingRequest, headers);
+
+        try {
+            log.debug("요청 서버 : {}", url);
+            // AI 서버로 POST 요청
+            ResponseEntity<String> response = restTemplate.exchange(
+                    url, // 요청을 보낼 URL
+                    HttpMethod.POST, // HTTP 메서드 (POST)
+                    request, // HTTP 요청 본문과 헤더가 포함된 객체
+                    String.class // 응답을 String 타입으로
+            );
+
+            String responseBody = Optional.ofNullable(response.getBody())
+                    .orElseThrow(() -> new CustomException(ErrorCode.AI_SERVER_ERROR));
+
+            log.info("AI 서버 응답 -> {}", response.getBody());
+
+            return parseAutoLabelingResponseList(responseBody);
+        } catch (Exception e) {
+            log.error("AI 서버 요청 중 오류 발생: ", e);
+            throw new CustomException(ErrorCode.AI_SERVER_ERROR);
+        }
+    }
+
+    private List<AutoLabelingResponse> parseAutoLabelingResponseList(String responseBody) {
+        JsonElement jsonElement = JsonParser.parseString(responseBody);
+        List<AutoLabelingResponse> autoLabelingResponseList = new ArrayList<>();
+        for (JsonElement element : jsonElement.getAsJsonArray()) {
+            AutoLabelingResponse response = parseAutoLabelingResponse(element);
+            autoLabelingResponseList.add(response);
+        }
+        return autoLabelingResponseList;
+    }
+
+    /**
+     * jsonElement -> AutoLabelingResponse
+     */
+    private AutoLabelingResponse parseAutoLabelingResponse(JsonElement element) {
+        JsonObject jsonObject = element.getAsJsonObject();
+        Long imageId = jsonObject.get("image_id").getAsLong();
+        String imageUrl = jsonObject.get("image_url").getAsString();
+        JsonObject data = jsonObject.get("data").getAsJsonObject();
+        return AutoLabelingResponse.of(imageId, imageUrl, gson.toJson(data));
+    }
+
+
+    /**
+     * API URL 구성
+     */
+    private String createApiUrl(String endPoint) {
+        return aiServer + "/" + endPoint;
+    }
+
+    /**
+     * 요청 헤더 설정
+     */
+    private static HttpHeaders createJsonHeaders() {
+        HttpHeaders headers = new HttpHeaders();
+        headers.set("Content-Type", "application/json");
+        return headers;
+    }
+
+    /**
+     * 프로젝트 타입 조회
+     */
+    private ProjectType getType(final Integer projectId) {
+        return projectRepository.findProjectTypeById(projectId)
+                .orElseThrow(() -> new CustomException(ErrorCode.PROJECT_NOT_FOUND));
+    }
+
+    /**
+     * 참여자(EDITOR, ADMIN) 검증 메서드
+     */
+    private void checkEditorExistParticipant(final Integer memberId, final Integer projectId) {
+        if (participantRepository.doesParticipantUnauthorizedExistByMemberIdAndProjectId(memberId, projectId)) {
+            throw new CustomException(ErrorCode.PARTICIPANT_UNAUTHORIZED);
+        }
+    }
+
+    // TODO : 구현
+    public void save(final Integer imageId) {
+    }
+}

backend/src/main/java/com/worlabel/domain/project/controller/ProjectController.java

@@ -119,4 +119,5 @@ public class ProjectController {
         projectService.removeProjectMember(memberId, projectId, removeMemberId);
         return SuccessResponse.empty();
     }
+
 }

backend/src/main/java/com/worlabel/domain/project/entity/dto/ProjectResponse.java

@@ -21,7 +21,7 @@ public class ProjectResponse {
     private String title;
 
     @Schema(description = "워크스페이스 id", example = "1")
-    private Integer projectId;
+    private Integer workspaceId;
 
     @Schema(description = "프로젝트 타입", example = "classification")
     private ProjectType projectType;

backend/src/main/java/com/worlabel/domain/project/repository/ProjectRepository.java

@@ -1,12 +1,15 @@
 package com.worlabel.domain.project.repository;
 
 import com.worlabel.domain.project.entity.Project;
+import com.worlabel.domain.project.entity.ProjectType;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.data.jpa.repository.Query;
 import org.springframework.data.repository.query.Param;
 import org.springframework.stereotype.Repository;
 
+import javax.swing.text.html.Option;
 import java.util.List;
+import java.util.Optional;
 
 @Repository
 public interface ProjectRepository extends JpaRepository<Project, Integer> {
@@ -24,4 +27,8 @@ public interface ProjectRepository extends JpaRepository<Project, Integer> {
             @Param("memberId") Integer memberId,
             @Param("lastProjectId") Integer lastProjectId,
             @Param("pageSize") Integer pageSize);
+
+    // ProjectType을 가져오는 메서드 추가
+    @Query("SELECT p.projectType FROM Project p WHERE p.id = :projectId")
+    Optional<ProjectType> findProjectTypeById(@Param("projectId") Integer projectId);
 }

backend/src/main/java/com/worlabel/domain/project/service/ProjectService.java

@@ -17,15 +17,18 @@ import com.worlabel.domain.workspace.repository.WorkspaceRepository;
 import com.worlabel.global.exception.CustomException;
 import com.worlabel.global.exception.ErrorCode;
 import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
 import java.util.List;
 import java.util.Objects;
 
+@Slf4j
 @Service
-@RequiredArgsConstructor
 @Transactional
+@RequiredArgsConstructor
 public class ProjectService {
 
     private final ProjectRepository projectRepository;
@@ -34,6 +37,7 @@ public class ProjectService {
     private final MemberRepository memberRepository;
     private final WorkspaceParticipantRepository workspaceParticipantRepository;
 
+
     public ProjectResponse createProject(final Integer memberId, final Integer workspaceId, final ProjectRequest projectRequest) {
         Workspace workspace = getWorkspace(memberId, workspaceId);
         Member member = getMember(memberId);
@@ -107,6 +111,7 @@ public class ProjectService {
         participantRepository.delete(participant);
     }
 
+
     private Workspace getWorkspace(final Integer memberId, final Integer workspaceId) {
         return workspaceRepository.findByMemberIdAndId(memberId, workspaceId)
                 .orElseThrow(() -> new CustomException(ErrorCode.WORKSPACE_NOT_FOUND));
@@ -146,3 +151,4 @@ public class ProjectService {
         }
     }
 }
+

backend/src/main/java/com/worlabel/global/advice/CustomControllerAdvice.java

@@ -10,6 +10,7 @@ import lombok.extern.slf4j.Slf4j;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.http.converter.HttpMessageNotReadableException;
+import org.springframework.web.HttpRequestMethodNotSupportedException;
 import org.springframework.web.bind.MissingServletRequestParameterException;
 import org.springframework.web.bind.annotation.ExceptionHandler;
 import org.springframework.web.bind.annotation.ResponseStatus;
@@ -17,6 +18,7 @@ import org.springframework.web.bind.annotation.RestControllerAdvice;
 import org.springframework.web.servlet.NoHandlerFoundException;
 import org.springframework.web.servlet.resource.NoResourceFoundException;
 
+import java.lang.reflect.Executable;
 import java.util.Enumeration;
 
 @Slf4j
@@ -57,6 +59,13 @@ public class CustomControllerAdvice {
         return ErrorResponse.of(new CustomException(ErrorCode.EMPTY_REQUEST_PARAMETER));
     }
 
+    @ExceptionHandler(HttpRequestMethodNotSupportedException.class)
+    public ErrorResponse handleRequestMethodNotSupportedException(Exception e, HttpServletRequest request) {
+        log.error("", e);
+        sendNotification(e, request);
+        return ErrorResponse.of(new CustomException(ErrorCode.BAD_REQUEST, "지원하지 않는 API입니다. 요청을 확인해주세요"));
+    }
+
     @ExceptionHandler(CustomException.class)
     public ResponseEntity<ErrorResponse> handleCustomException(CustomException e, HttpServletRequest request) {
         log.error("", e);
@@ -65,9 +74,11 @@ public class CustomControllerAdvice {
                 .body(ErrorResponse.of(e));
     }
 
+
+
     private void sendNotification(Exception e, HttpServletRequest request) {
         // TODO: 추후 주석 해제
-        notificationManager.sendNotification(e, request.getRequestURI(),getParams(request));
+//        notificationManager.sendNotification(e, request.getRequestURI(),getParams(request));
     }
 
     private String getParams(HttpServletRequest req) {

backend/src/main/java/com/worlabel/global/config/SecurityConfig.java

@@ -64,8 +64,11 @@ public class SecurityConfig {
         // 경로별 인가 작업
         http
                 .authorizeHttpRequests(auth->auth
+                                .requestMatchers("/swagger", "/swagger-ui.html", "/swagger-ui/**", "/api-docs", "/api-docs/**", "/v3/api-docs/**").permitAll()
                         .requestMatchers("/api/auth/reissue").permitAll()
-                        .anyRequest().authenticated());
+                        .anyRequest().authenticated()
+//                        .anyRequest().permitAll()
+                );
 
         // OAuth2
         http

backend/src/main/java/com/worlabel/global/config/WebConfig.java

@@ -2,7 +2,9 @@ package com.worlabel.global.config;
 
 import com.worlabel.global.resolver.CurrentUserArgumentResolver;
 import lombok.RequiredArgsConstructor;
+import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.web.client.RestTemplate;
 import org.springframework.web.method.support.HandlerMethodArgumentResolver;
 import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
 
@@ -18,4 +20,9 @@ public class WebConfig implements WebMvcConfigurer {
     public void addArgumentResolvers(List<HandlerMethodArgumentResolver> resolvers) {
         resolvers.add(currentUserArgumentResolver);
     }
+
+    @Bean
+    public RestTemplate restTemplate() {
+        return new RestTemplate();
+    }
 }

backend/src/main/java/com/worlabel/global/exception/ErrorCode.java

@@ -16,6 +16,7 @@ public enum ErrorCode {
     INVALID_URL(HttpStatus.BAD_REQUEST, 1004, "제공하지 않는 주소입니다. 확인해주세요"),
     FAIL_TO_CREATE_FILE(HttpStatus.BAD_REQUEST, 1005, "파일 업로드에 실패하였습니다. 다시 한번 확인해주세요"),
     FAIL_TO_DELETE_FILE(HttpStatus.BAD_REQUEST, 1006, "파일 삭제에 실패하였습니다. 다시 한번 확인해주세요"),
+    INVALID_FILE_PATH(HttpStatus.BAD_REQUEST,1007 , "파일 경로가 잘못되었습니다. 다시 한번 확인해주세요"),
 
     // Auth & Member - 2000
     USER_NOT_FOUND(HttpStatus.NOT_FOUND, 2000, "해당 ID의 사용자를 찾을 수 없습니다."),
@@ -47,8 +48,10 @@ public enum ErrorCode {
     // Image - 7000
     IMAGE_NOT_FOUND(HttpStatus.NOT_FOUND, 7000,"해당 이미지를 찾을 수 없습니다."),
 
-    ;
+    // AI - 8000
+    AI_SERVER_ERROR(HttpStatus.INTERNAL_SERVER_ERROR, 8000, "AI 서버 오류 입니다."),
 
+    ;
     private final HttpStatus status;
     private final int code;
     private final String message;

backend/src/main/java/com/worlabel/global/service/S3UploadService.java

@@ -11,6 +11,7 @@ import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Service;
+import org.springframework.util.StringUtils;
 import org.springframework.web.multipart.MultipartFile;
 
 import java.io.ByteArrayInputStream;
@@ -22,6 +23,7 @@ import java.nio.charset.StandardCharsets;
 import java.util.Objects;
 import java.util.UUID;
 
+// TODO: 추후 비동기로 변경해야합니다.
 @Slf4j
 @Service
 @RequiredArgsConstructor
@@ -44,6 +46,32 @@ public class S3UploadService {
     @Value("${cloud.aws.url}")
     private String url;
 
+    public String uploadJson(final String json, final String imageUrl) {
+//        String targetUrl = projectId + "/" + title + ".json"; // S3에 업로드할 대상 URL
+        String targetUrl = removeExtension(getKeyFromImageAddress(imageUrl)) + ".json";
+
+        log.debug("주소 {}", targetUrl);
+
+        try {
+            byte[] jsonBytes = json.getBytes(StandardCharsets.UTF_8);
+            ObjectMetadata metadata = new ObjectMetadata();
+            metadata.setContentType("application/json");
+            metadata.setContentLength(jsonBytes.length);
+
+            // JSON 데이터를 S3에 업로드
+            try (ByteArrayInputStream inputStream = new ByteArrayInputStream(jsonBytes)) {
+                PutObjectRequest putRequest = new PutObjectRequest(bucket, targetUrl, inputStream, metadata);
+                amazonS3.putObject(putRequest); // S3에 파일 업로드
+            }
+
+            URL uploadedUrl = amazonS3.getUrl(bucket, targetUrl);
+            log.debug("Uploaded JSON URL: {}", uploadedUrl);
+            return uploadedUrl.toString(); // 업로드된 파일의 URL 반환
+        } catch (Exception e) {
+            log.error("JSON 업로드 중 오류 발생: ", e);
+            throw new CustomException(ErrorCode.FAIL_TO_CREATE_FILE);
+        }
+    }
 
     /**
      * 파일이 존재하는지 확인
@@ -60,7 +88,7 @@ public class S3UploadService {
      */
     private String uploadImage(final MultipartFile image, final Integer projectId) {
         try {
-            return uploadToS3(image, projectId);
+            return uploadImageToS3(image, projectId);
         } catch (IOException e) {
             throw new CustomException(ErrorCode.FAIL_TO_CREATE_FILE);
         }
@@ -69,7 +97,7 @@ public class S3UploadService {
     /**
      * AWS S3 이미지 업로드
      */
-    private String uploadToS3(final MultipartFile image, final Integer projectId) throws IOException {
+    private String uploadImageToS3(final MultipartFile image, final Integer projectId) throws IOException {
         String originalFileName = image.getOriginalFilename(); // 원본 파일 이름
         String extension = originalFileName.substring(originalFileName.lastIndexOf(".") + 1); // 파일 확장자
 
@@ -99,11 +127,11 @@ public class S3UploadService {
         return url.getPath();
     }
 
-    private static String getS3FileName(Integer projectId, String extension) {
+    private static String getS3FileName(final Integer projectId, final String extension) {
         return projectId + "/" + UUID.randomUUID().toString().substring(0, 13) + "." + extension;
     }
 
-    public void deleteImageFromS3(String imageAddress){
+    public void deleteImageFromS3(String imageAddress) {
         String key = getKeyFromImageAddress(imageAddress);
         try {
             amazonS3.deleteObject(new DeleteObjectRequest(bucket, key));
@@ -112,13 +140,24 @@ public class S3UploadService {
         }
     }
 
+    private String removeExtension(String url) {
+        if (!StringUtils.hasText(url) || !url.contains(".")) {
+            return url;
+        }
+        return url.substring(0, url.lastIndexOf("."));
+    }
+
     private String getKeyFromImageAddress(String imageAddress) {
+        if (!StringUtils.hasText(imageAddress)) {
+            throw new CustomException(ErrorCode.INVALID_FILE_PATH);
+        }
+
         try {
             URL url = new URL(imageAddress);
             String decodingKey = URLDecoder.decode(url.getPath(), StandardCharsets.UTF_8);
             return decodingKey.substring(1);
         } catch (MalformedURLException e) {
-            throw new CustomException(ErrorCode.FAIL_TO_DELETE_FILE);
+            throw new CustomException(ErrorCode.INVALID_FILE_PATH);
         }
     }
 }