feat: 이미지 삭제 api 구현 완료

src/main/java/com/day_walk/backend/domain/image/controller/ImageController.java

@@ -1,6 +1,7 @@
 package com.day_walk.backend.domain.image.controller;
 
 import com.day_walk.backend.domain.image.service.ImageService;
+import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.tags.Tag;
 import lombok.RequiredArgsConstructor;
 import org.springframework.http.HttpStatus;
@@ -20,7 +21,7 @@ public class ImageController {
 
     private final ImageService imageService;
 
-    // 파일 업로드 API
+    @Operation(summary = "이미지 업로드", description = "S3에 이미지를 저장 합니다.")
     @PostMapping(consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
     public ResponseEntity<Map<String, Object>> uploadImage(@RequestBody MultipartFile file) {
 
@@ -33,4 +34,18 @@ public ResponseEntity<Map<String, Object>> uploadImage(@RequestBody MultipartFil
 
         return ResponseEntity.status(HttpStatus.OK).body(response);
     }
+
+    @Operation(summary = "이미지 삭제", description = "S3에 저장된 이미지를 삭제합니다.")
+    @DeleteMapping
+    public ResponseEntity<Map<String, Object>> deleteImage(@RequestBody String imgUrl) {
+
+        boolean result = imageService.deleteImage(imgUrl);
+
+        Map<String, Object> response = new HashMap<>();
+        response.put("message", result ? "이미지 삭제 성공!" : "이미지 삭제 실패..");
+        response.put("success", result);
+
+        return ResponseEntity.status(HttpStatus.OK).body(response);
+    }
+
 }

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

@@ -1,13 +1,18 @@
 package com.day_walk.backend.domain.image.service;
 
+import com.day_walk.backend.global.error.CustomException;
+import com.day_walk.backend.global.error.ErrorCode;
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
 import org.springframework.web.multipart.MultipartFile;
 import software.amazon.awssdk.core.sync.RequestBody;
 import software.amazon.awssdk.services.s3.S3Client;
+import software.amazon.awssdk.services.s3.model.DeleteObjectRequest;
+import software.amazon.awssdk.services.s3.model.DeleteObjectResponse;
 import software.amazon.awssdk.services.s3.model.PutObjectRequest;
 import software.amazon.awssdk.services.s3.model.GetUrlRequest;
 
+import java.net.URL;
 import java.util.UUID;
 
 @Service
@@ -18,26 +23,26 @@ public class ImageService {
 
     private final S3Client s3Client;
 
-
     public String uploadImage(MultipartFile multipartFile) {
+
+        if(multipartFile.isEmpty()) {
+            throw new CustomException(ErrorCode.IMAGE_NOT_FOUND);
+        }
+
         try {
-            // S3에 저장될 고유한 파일 이름 생성
             String randomName = UUID.randomUUID().toString();
             String fileName = randomName + "_" + multipartFile.getOriginalFilename();
 
-            // S3 업로드 요청 객체 생성
             PutObjectRequest putObjectRequest = PutObjectRequest.builder()
                     .bucket(bucketName)
                     .key(fileName)
                     .contentType(multipartFile.getContentType())
                     .build();
 
-            // 파일 업로드
             s3Client.putObject(putObjectRequest,
                     RequestBody.fromInputStream(multipartFile.getInputStream(), multipartFile.getSize())
             );
 
-            // S3에서 해당 파일의 URL 가져오기
             return s3Client.utilities().getUrl(GetUrlRequest.builder()
                     .bucket(bucketName)
                     .key(fileName)
@@ -47,4 +52,34 @@ public String uploadImage(MultipartFile multipartFile) {
             throw new RuntimeException("S3 업로드 실패: " + e.getMessage(), e);
         }
     }
+
+    public boolean deleteImage(String imgUrl) {
+        if(imgUrl == null) {
+            throw new CustomException(ErrorCode.IMAGE_NOT_FOUND);
+        }
+        try {
+            imgUrl = imgUrl.replace("\"", "");
+            URL url = new URL(imgUrl);
+            String key = url.getPath().substring(1);
+            System.out.println("Key : " + key);
+
+            DeleteObjectRequest deleteObjectRequest = DeleteObjectRequest.builder()
+                    .bucket(bucketName)
+                    .key(key)
+                    .build();
+
+            DeleteObjectResponse deleteResponse = s3Client.deleteObject(deleteObjectRequest);
+
+            if (deleteResponse.sdkHttpResponse().isSuccessful()) {
+                return true;
+            } else {
+                System.err.println("이미지 삭제 실패: " + key);
+                throw new CustomException(ErrorCode.IMAGE_DELETE_FAIL);
+            }
+
+        } catch (Exception e) {
+            throw new RuntimeException("S3 삭제 실패: " + e.getMessage(), e);
+        }
+    }
+
 }

src/main/java/com/day_walk/backend/global/error/ErrorCode.java

@@ -29,7 +29,10 @@ public enum ErrorCode {
     COURSE_LIKE_NOT_FOUND(HttpStatus.NOT_FOUND, false, "COURSE_LIKE_010", "코스 찜한 내역을 찾을 수 없습니다."),
     COURSE_LIKE_IS_EXIST(HttpStatus.BAD_REQUEST, false, "COURSE_LIKE_030", "이미 찜한 코스입니다."),
 
-    PLACE_LIKE_NOT_FOUND(HttpStatus.NOT_FOUND, false, "PLACE_LIKE_010", "장소 찜 내역을 찾을 수 없습니다.");
+    PLACE_LIKE_NOT_FOUND(HttpStatus.NOT_FOUND, false, "PLACE_LIKE_010", "장소 찜 내역을 찾을 수 없습니다."),
+
+    IMAGE_NOT_FOUND(HttpStatus.NOT_FOUND, false, "IMAGE_010", "이미지를 불러올 수 없습니다."),
+    IMAGE_DELETE_FAIL(HttpStatus.BAD_REQUEST, false, "IMAGE_040", "이미지 삭제를 실패했습니다.");
 
     private final HttpStatus httpStatus;
     private final boolean success;