sopt-makers · hyerinhwang-sailin · Sep 12, 2025 · Sep 9, 2025 · Sep 9, 2025 · Sep 9, 2025
diff --git a/src/main/java/org/sopt/app/application/friend/FriendRecommender.java b/src/main/java/org/sopt/app/application/friend/FriendRecommender.java
@@ -4,7 +4,10 @@
 import java.util.List;
 import java.util.Optional;
 import java.util.Set;
+
+import feign.FeignException;
 import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
 
 import org.sopt.app.application.platform.PlatformService;
 import org.sopt.app.application.playground.PlaygroundAuthService;
@@ -17,6 +20,7 @@
 import org.sopt.app.presentation.poke.PokeResponse.*;
 import org.springframework.stereotype.Service;
 
+@Slf4j
 @Service
 @RequiredArgsConstructor
 public class FriendRecommender {
@@ -81,12 +85,24 @@ private List<UserProfile> getRecommendableUserProfiles(
         // size 가드 : 이상값 들어오면 500 대신 빈 리스트
         if (size <= 0) return List.of();
 
-        // ALL_USER 아닐 경우 playground에서 후보 id 수집
+        /*
+         후보 id 수집 : ALL_USER 아닐 경우 playground에서 후보 id 수집
+         TODO : playground 414 시 ALL_USER fallback -> 임시 해결책으로, 플그, 플폼팀과의 논의 후 수정 예정
+         */
         Set<Long> userIds;
         if (type == FriendRecommendType.ALL_USER) {
             userIds = Set.copyOf(userService.getAllUserIds());
         } else {
-            userIds = playgroundUserIdsProvider.findPlaygroundIdsByType(ownProfile, type);
+            try {
+                userIds = playgroundUserIdsProvider.findPlaygroundIdsByType(ownProfile, type);
+            } catch (FeignException e) {
+                if (isUriTooLarge(e)) {
+                    log.info("Playground profile/recommend 414 detected for type={}, fallback to ALL_USER", type);
+                    userIds = Set.copyOf(userService.getAllUserIds());
+                } else {
+                    throw e; // 다른 에러는 그대로 올림
+                }
+            }
         }
         if (userIds.isEmpty()) return List.of();
 
@@ -121,4 +137,10 @@ private List<FriendRecommendType> adjustTypeList(List<FriendRecommendType> typeL
         }
         return typeList;
     }
+
+    private boolean isUriTooLarge(FeignException e) {
+        // playground가 414를 400으로 감싸서 내려주므로 메시지로 판단
+        String msg = e.getMessage();
+        return e.status() == 414 || (e.status() == 400 && msg != null && msg.contains("414 Request-URI Too Large"));
+    }
 }
diff --git a/src/main/java/org/sopt/app/application/playground/PlaygroundAuthService.java b/src/main/java/org/sopt/app/application/playground/PlaygroundAuthService.java
@@ -1,9 +1,9 @@
 package org.sopt.app.application.playground;
 
-import java.net.URLEncoder;
-import java.nio.charset.StandardCharsets;
+import java.util.Collection;
+import java.util.HashMap;
 import java.util.List;
-import java.util.stream.Collectors;
+import java.util.Map;
 
 import org.sopt.app.application.playground.dto.PlaygroundPopularPost;
 import org.sopt.app.application.playground.dto.PlaygroundProfileInfo;
@@ -35,20 +35,15 @@ public class PlaygroundAuthService {
     @Value("${makers.playground.web-page}")
     private String playgroundWebPageUrl;
 
-    // public PlaygroundProfile getPlaygroundMemberProfile(Long userId) {
-    //     try {
-    //         return playgroundClient.getPlaygroundMemberProfiles(userId).getFirst();
-    //     } catch (BadRequest e) {
-    //         throw new BadRequestException(ErrorCode.PLAYGROUND_PROFILE_NOT_EXISTS);
-    //     }
-    // }
-
     public List<PlaygroundProfile> getPlaygroundMemberProfiles(List<Long> userIds) {
-        String stringifyIds = userIds.stream()
-                .map(String::valueOf)
-                .collect(Collectors.joining(","));
+        if (userIds == null || userIds.isEmpty()) return List.of();
+
+        // 반복 파라미터 구성
+        Map<String, Collection<String>> query = new HashMap<>();
+        query.put("memberIds", userIds.stream().map(String::valueOf).toList());
+
         try {
-            return playgroundClient.getPlaygroundMemberProfiles(URLEncoder.encode(stringifyIds, StandardCharsets.UTF_8));
+            return playgroundClient.getPlaygroundMemberProfiles(query);
         } catch (BadRequest e) {
             throw new BadRequestException(ErrorCode.PLAYGROUND_PROFILE_NOT_EXISTS);
         }

diff --git a/src/main/java/org/sopt/app/application/playground/PlaygroundClient.java b/src/main/java/org/sopt/app/application/playground/PlaygroundClient.java
@@ -1,6 +1,8 @@
 package org.sopt.app.application.playground;
 
+import java.util.Collection;
 import java.util.List;
+import java.util.Map;
 
 import org.sopt.app.application.playground.dto.PlayGroundUserSoptLevelResponse;
 import org.sopt.app.application.playground.dto.PlaygroundPopularPost;
@@ -14,6 +16,7 @@
 
 import feign.Headers;
 import feign.Param;
+import feign.QueryMap;
 import feign.RequestLine;
 
 @EnableFeignClients
@@ -24,8 +27,8 @@ public interface PlaygroundClient {
     // List<PlaygroundProfile> getPlaygroundMemberProfiles(@Param("memberId") Long playgroundId);
 
     // headers 제외
-    @RequestLine("GET /internal/api/v1/members/profile?memberIds={encodedIds}")
-    List<PlaygroundProfile> getPlaygroundMemberProfiles(@Param(value = "encodedIds") String encodedIds);
+    @RequestLine("GET /internal/api/v1/members/profile")
+    List<PlaygroundProfile> getPlaygroundMemberProfiles(@QueryMap Map<String, Collection<String>> query);
 
     // headers 제외, userId
     @RequestLine("GET /internal/api/v1/members/profile/me?memberId={memberId}")

diff --git a/src/main/java/org/sopt/app/application/user/UserInfo.java b/src/main/java/org/sopt/app/application/user/UserInfo.java
@@ -0,0 +1,4 @@
+package org.sopt.app.application.user;
+
+public record UserInfo (Long userId){
+}
diff --git a/src/main/java/org/sopt/app/application/user/UserService.java b/src/main/java/org/sopt/app/application/user/UserService.java
@@ -96,4 +96,14 @@ public List<String> getIcons(IconType iconType) {
                 .map(Icons::getIconUrl)
                 .toList();
     }
+
+    @Transactional
+    public UserInfo createUser(Long userId) {
+        User user = User.builder()
+            .id(userId)
+            .build();
+        User savedUser = userRepository.save(user);
+
+        return new UserInfo(savedUser.getId());
+    }
 }
diff --git a/src/main/java/org/sopt/app/common/response/ErrorCode.java b/src/main/java/org/sopt/app/common/response/ErrorCode.java
@@ -23,7 +23,7 @@ public enum ErrorCode {
     INVALID_PLAYGROUND_CODE("유효하지 않은 플레이그라운드 OAuth 코드입니다.", HttpStatus.UNAUTHORIZED),
     UNAUTHORIZED("권한이 없습니다", HttpStatus.UNAUTHORIZED),
     TOKEN_EXPIRED("토큰이 만료되었습니다.", HttpStatus.UNAUTHORIZED),
-
+    INVALID_INTERNAL_API_KEY("유효하지 않은 내부 API key 입니다.", HttpStatus.UNAUTHORIZED),
     // AUTH_CLIENT
     RESPONSE_ERROR("외부 서버 응답 오류", HttpStatus.INTERNAL_SERVER_ERROR),
     COMMUNICATION_ERROR("외부 서버 통신 실패", HttpStatus.INTERNAL_SERVER_ERROR),

diff --git a/src/main/java/org/sopt/app/common/security/config/WebSecurityConfig.java b/src/main/java/org/sopt/app/common/security/config/WebSecurityConfig.java
@@ -40,6 +40,7 @@ public class WebSecurityConfig {
             "/api/v2/firebase/**",
             "/api/v2/notification/**",
             "/api/v2/user/main",
+            "/api/v2/user/register",
             "/api/v2/home/app-service",
             "/api/v2/home/floating-button",
             "/api/v2/home/review-form"

diff --git a/src/main/java/org/sopt/app/facade/UserFacade.java b/src/main/java/org/sopt/app/facade/UserFacade.java
@@ -10,6 +10,8 @@
 import org.sopt.app.application.notification.NotificationService;
 import org.sopt.app.application.app_service.AppServiceService;
 import org.sopt.app.application.playground.dto.PlaygroundProfileInfo;
+import org.sopt.app.application.user.UserInfo;
+import org.sopt.app.application.user.UserService;
 import org.sopt.app.domain.entity.User;
 import org.sopt.app.presentation.user.UserResponse.*;
 import org.sopt.app.presentation.user.UserResponseMapper;
@@ -25,6 +27,7 @@ public class UserFacade {
     private final AppServiceService appServiceService;
     private final UserResponseMapper userResponseMapper;
     private final PlatformService platformService;
+    private final UserService userService;
 
     @Transactional(readOnly = true)
     public MainView getMainViewInfo(Long userId) {
@@ -50,4 +53,9 @@ public List<AppService> getAppServiceInfo() {
                 .map(AppService::of)
                 .toList();
     }
+
+    @Transactional
+    public UserInfo createUser(Long requestUserId){
+        return userService.createUser(requestUserId);
+    }
 }
diff --git a/src/main/java/org/sopt/app/presentation/user/UserOriginalController.java b/src/main/java/org/sopt/app/presentation/user/UserOriginalController.java
@@ -5,20 +5,23 @@
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
 import io.swagger.v3.oas.annotations.responses.ApiResponses;
 import io.swagger.v3.oas.annotations.security.SecurityRequirement;
-import java.util.List;
 import lombok.RequiredArgsConstructor;
 import lombok.val;
 
 import org.sopt.app.application.platform.PlatformService;
 import org.sopt.app.application.playground.PlaygroundAuthService;
-import org.sopt.app.application.playground.dto.PlaygroundPostInfo.PlaygroundPost;
-import org.sopt.app.application.playground.dto.PlaygroundProfileInfo;
-import org.sopt.app.domain.entity.User;
+import org.sopt.app.common.exception.UnauthorizedException;
+import org.sopt.app.common.response.ErrorCode;
 import org.sopt.app.facade.UserFacade;
-import org.sopt.app.presentation.user.UserResponse.AppService;
+import org.sopt.app.presentation.user.UserRequest.CreateUserRequest;
+import org.sopt.app.presentation.user.UserResponse.Create;
+import org.springframework.beans.factory.annotation.Value;
 import org.springframework.http.ResponseEntity;
 import org.springframework.security.core.annotation.AuthenticationPrincipal;
 import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestHeader;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 
@@ -61,4 +64,25 @@ public ResponseEntity<UserResponse.Generation> getGenerationInfo(
             userResponseMapper.ofGeneration(
                 platformService.getUserActiveInfo(userId)));
     }
+
+    @Operation
+    @ApiResponses({
+        @ApiResponse(responseCode = "200", description = "success"),
+        @ApiResponse(responseCode = "401", description = "token error", content = @Content),
+        @ApiResponse(responseCode = "500", description = "server error", content = @Content)
+    })
+    @PostMapping("/register")
+    public ResponseEntity<Create> createDefaultUserProfile(
+        @RequestBody CreateUserRequest request,
+        @RequestHeader("apiKey") String apiKey,
+        @Value("${internal.auth.api-key}") String internalApiKey
+    ){
+        if(!internalApiKey.equals(apiKey)){
+            throw new UnauthorizedException(ErrorCode.INVALID_INTERNAL_API_KEY);
+        }
+
+        return ResponseEntity.ok(
+            userResponseMapper.ofCreate(
+                userFacade.createUser(request.getUserId())));
+    }
 }
diff --git a/src/main/java/org/sopt/app/presentation/user/UserRequest.java b/src/main/java/org/sopt/app/presentation/user/UserRequest.java
@@ -16,4 +16,13 @@ public static class EditProfileMessageRequest {
         @NotNull(message = "profileMessage may not be null")
         private String profileMessage;
     }
+
+    @Getter
+    @AllArgsConstructor(access = AccessLevel.PUBLIC)
+    @NoArgsConstructor(access = AccessLevel.PRIVATE)
+    public static class CreateUserRequest{
+        @Schema(description = "생성된 UserId", example = "101")
+        @NotNull(message = "userId may not be null")
+        private Long userId;
+    }
 }
diff --git a/src/main/java/org/sopt/app/presentation/user/UserResponse.java b/src/main/java/org/sopt/app/presentation/user/UserResponse.java
@@ -5,12 +5,12 @@
 import java.util.stream.Collectors;
 
 import lombok.AccessLevel;
+import lombok.AllArgsConstructor;
 import lombok.Builder;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
 import lombok.ToString;
 import org.sopt.app.application.app_service.dto.AppServiceInfo;
-import org.sopt.app.application.playground.dto.PlaygroundProfileInfo;
 import org.sopt.app.application.playground.dto.PlaygroundProfileInfo.PlaygroundProfile;
 import org.sopt.app.domain.enums.PlaygroundPart;
 
@@ -186,4 +186,11 @@ public static SoptLog of(int soptLevel, Long pokeCount, Long soptampRank, Long d
                     .build();
         }
     }
+
+    @Getter
+    @AllArgsConstructor
+    public static class Create {
+        @Schema(description = "생성된 유저 ID", example = "101")
+        private Long userId;
+    }
 }
diff --git a/src/main/java/org/sopt/app/presentation/user/UserResponseMapper.java b/src/main/java/org/sopt/app/presentation/user/UserResponseMapper.java
@@ -2,6 +2,7 @@
 
 import org.mapstruct.*;
 import org.sopt.app.application.playground.dto.PlaygroundProfileInfo;
+import org.sopt.app.application.user.UserInfo;
 import org.sopt.app.presentation.user.UserResponse.*;
 
 @Mapper(
@@ -17,4 +18,6 @@ UserResponse.MainView ofMainView(PlaygroundProfileInfo.MainView user, UserRespon
     UserResponse.ProfileMessage of(ProfileMessage profileMessage);
 
     UserResponse.Generation ofGeneration(PlaygroundProfileInfo.UserActiveInfo userActiveInfo);
+
+    Create ofCreate(UserInfo userInfo);
 }