[Feature] 회원 잔액 조회 기능

server/src/main/java/com/soopgyeol/api/controller/UserController.java

@@ -1,8 +1,11 @@
 package com.soopgyeol.api.controller;
 
+import com.soopgyeol.api.common.dto.ApiResponse;
 import com.soopgyeol.api.common.dto.NicknameUpdateRequest;
 import com.soopgyeol.api.common.dto.NicknameUpdateResponse;
+import com.soopgyeol.api.config.auth.CustomUserDetails;
 import com.soopgyeol.api.domain.user.User;
+import com.soopgyeol.api.domain.user.dto.MoneyBalanceResponse;
 import com.soopgyeol.api.domain.user.dto.UserInfoResponse;
 import com.soopgyeol.api.service.UserService;
 import com.soopgyeol.api.service.jwt.JwtProvider;
@@ -69,4 +72,12 @@ public ResponseEntity<?> deleteMe(@RequestHeader("Authorization") String authori
         }
     }
 
+    @GetMapping("/money-balance")
+    public ResponseEntity<ApiResponse<MoneyBalanceResponse>> getMoneyBalance (
+            @AuthenticationPrincipal CustomUserDetails userDetails
+    ) {
+        MoneyBalanceResponse response = userService.getMoneyBalance(userDetails.getUserId());
+        return ResponseEntity.ok(new ApiResponse<>(true, "회원 잔액 조회 성공", response));
+    }
+
 }

server/src/main/java/com/soopgyeol/api/domain/user/dto/MoneyBalanceResponse.java

@@ -0,0 +1,10 @@
+package com.soopgyeol.api.domain.user.dto;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
+public class MoneyBalanceResponse {
+    private int moneyBalance;
+}

server/src/main/java/com/soopgyeol/api/service/UserService.java

@@ -1,6 +1,7 @@
 package com.soopgyeol.api.service;
 
 import com.soopgyeol.api.domain.user.User;
+import com.soopgyeol.api.domain.user.dto.MoneyBalanceResponse;
 import com.soopgyeol.api.repository.UserRepository;
 import com.soopgyeol.api.repository.StageRepository;
 import com.soopgyeol.api.repository.InventoryRepository;
@@ -46,4 +47,11 @@ public void deleteUser(Long userId) {
         userRepository.delete(user);
     }
 
+    public MoneyBalanceResponse getMoneyBalance(Long userId){
+        User user = userRepository.findById(userId)
+                .orElseThrow(() -> new IllegalArgumentException("유저가 존재하지 않습니다."));
+
+        return new MoneyBalanceResponse(user.getMoneyBalance());
+    }
+
 }