[USER] User 탈퇴 기능 구현

api/src/main/java/com/bouquet/api/user/dto/UserResponse.java

@@ -1,9 +1,26 @@
 package com.bouquet.api.user.dto;
 
+import com.bouquet.api.post.dto.Post;
+import com.bouquet.api.post.dto.PostResponse;
 import lombok.*;
 
 public class UserResponse {
 
+    @Getter
+    @Builder
+    @NoArgsConstructor(access = AccessLevel.PRIVATE)
+    @AllArgsConstructor(access = AccessLevel.PRIVATE)
+    public static class OnlyId {
+        private long id;
+        public static UserResponse.OnlyId build(User user) {
+            return UserResponse.OnlyId.builder()
+                    .id(user.getId())
+                    .build();
+        }
+    }
+
+
+
     @Getter
     @Builder
     @NoArgsConstructor(access = AccessLevel.PRIVATE)

api/src/main/java/com/bouquet/api/user/service/UserService.java

@@ -1,8 +1,12 @@
 package com.bouquet.api.user.service;
 
 
+import com.bouquet.api.message.dto.Message;
+import com.bouquet.api.message.dto.MessageResponse;
+import com.bouquet.api.message.exception.MessageNotFoundException;
 import com.bouquet.api.user.dto.User;
 import com.bouquet.api.user.dto.UserResponse;
+import com.bouquet.api.user.exception.UserNotFoundException;
 import com.bouquet.api.user.repository.UserRepository;
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
@@ -37,6 +41,10 @@ public HashMap<String, Object> checknick(){
         return result;
     }
 
-
+    public UserResponse.OnlyId delete(Long id) {
+        User user = userRepository.findById(id).orElseThrow(UserNotFoundException::new);
+        userRepository.deleteById(id);
+        return UserResponse.OnlyId.build(user);
+    }
 
 }

api/src/main/java/com/bouquet/api/user/web/UserController.java

@@ -1,6 +1,8 @@
 package com.bouquet.api.user.web;
 
 
+import com.bouquet.api.post.dto.PostResponse;
+import com.bouquet.api.post.service.PostService;
 import com.bouquet.api.user.dto.KakaoTokenInfo;
 import com.bouquet.api.user.dto.KakaoUserInfo;
 import com.bouquet.api.user.dto.User;
@@ -12,9 +14,7 @@
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.bind.annotation.*;
 
 import javax.servlet.http.HttpSession;
 import java.util.HashMap;
@@ -29,6 +29,8 @@ public class UserController {
     @Autowired
     private UserRepository userRepository;
 
+    private final UserService userService;
+
     //프론트에서 인증 코드를 보내주면 카카오 서버와 통신하고 사용자 정보를 조회한다.
     @RequestMapping("kakaoLogin")
     public ResponseEntity<Object> kakaoLogin(String code, HttpSession httpSession) {
@@ -60,8 +62,6 @@ public ResponseEntity<Object> kakaoLogin(String code, HttpSession httpSession) {
         return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).build();
     }
 
-    private final UserService userService;
-
     @GetMapping(value = "/login/user/nickname")
     public ResponseEntity<UserResponse.UserInfo> getUser(String nickname){
         UserResponse.UserInfo response = userService.create(nickname);
@@ -74,4 +74,11 @@ public ResponseEntity<Map<String, Object>> loginComplete(HttpSession session) {
         return new ResponseEntity<Map<String, Object>>(result, HttpStatus.OK);
     }
 
+    @DeleteMapping(value = "/user/{userId}")
+    public ResponseEntity<UserResponse.OnlyId> delete(@PathVariable Long userId) {
+        UserResponse.OnlyId response = userService.delete(userId);
+        return ResponseEntity.ok().body(response);
+    }
+
+
 }