Merge pull request #259 from prgrms-web-devcourse-final-project/feat/#257

[User] 유저 id로 유저 정보 조회 API 추가

Author: Creamcheesepie

src/main/java/com/back/web7_9_codecrete_be/domain/users/controller/UserController.java

@@ -5,6 +5,7 @@
 import com.back.web7_9_codecrete_be.domain.users.dto.request.UserUpdateBirthRequest;
 import com.back.web7_9_codecrete_be.domain.users.dto.request.UserUpdateNicknameRequest;
 import com.back.web7_9_codecrete_be.domain.users.dto.request.UserUpdatePasswordRequest;
+import com.back.web7_9_codecrete_be.domain.users.dto.response.UserPublicResponse;
 import com.back.web7_9_codecrete_be.domain.users.dto.response.UserResponse;
 import com.back.web7_9_codecrete_be.domain.users.dto.response.UserSettingResponse;
 import com.back.web7_9_codecrete_be.domain.users.entity.User;
@@ -118,4 +119,13 @@ public RsData<?> updateMySettings(
         userService.updateMySettings(user, req);
         return RsData.success("유저 설정 수정 성공");
     }
+
+    @Operation(summary = "유저 ID로 사용자 정보 조회", description = "유저 ID를 기반으로 공개 가능한 사용자 정보를 조회합니다.")
+    @GetMapping("/{userId}")
+    public RsData<?> getUserById(
+            @PathVariable Long userId
+    ) {
+        UserPublicResponse response = userService.getUserById(userId);
+        return RsData.success("사용자 정보 조회 성공", response);
+    }
 }

src/main/java/com/back/web7_9_codecrete_be/domain/users/dto/response/UserPublicResponse.java

@@ -0,0 +1,22 @@
+package com.back.web7_9_codecrete_be.domain.users.dto.response;
+
+
+import com.back.web7_9_codecrete_be.domain.users.entity.User;
+import lombok.Builder;
+import lombok.Getter;
+
+@Getter
+@Builder
+public class UserPublicResponse {
+    private Long id;
+    private String nickname;
+    private String profileImageUrl;
+
+    public static UserPublicResponse from(User user) {
+        return UserPublicResponse.builder()
+                .id(user.getId())
+                .nickname(user.getNickname())
+                .profileImageUrl(user.getProfileImage())
+                .build();
+    }
+}

src/main/java/com/back/web7_9_codecrete_be/domain/users/service/UserService.java

@@ -8,6 +8,7 @@
 import com.back.web7_9_codecrete_be.domain.users.dto.request.UserUpdateBirthRequest;
 import com.back.web7_9_codecrete_be.domain.users.dto.request.UserUpdateNicknameRequest;
 import com.back.web7_9_codecrete_be.domain.users.dto.request.UserUpdatePasswordRequest;
+import com.back.web7_9_codecrete_be.domain.users.dto.response.UserPublicResponse;
 import com.back.web7_9_codecrete_be.domain.users.dto.response.UserResponse;
 import com.back.web7_9_codecrete_be.domain.users.dto.response.UserSettingResponse;
 import com.back.web7_9_codecrete_be.domain.users.entity.SocialType;
@@ -260,4 +261,11 @@ public void updateMySettings(User user, UserSettingUpdateRequest req) {
             setting.changeDarkMode(req.getDarkMode());
         }
     }
+
+    public UserPublicResponse  getUserById(Long userId) {
+        User user = userRepository.findById(userId)
+                .orElseThrow(() -> new BusinessException(UserErrorCode.USER_NOT_FOUND));
+
+        return UserPublicResponse.from(user);
+    }
 }