비회원 신청 및 가상 계좌 신청에 따른 시험 인원 수 갱신 #221
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…ssor and DepositEventPublisher
…VirtualAccountLogService
…etter organization
…nd include applicationId in CreateVirtualAccountRequest
… and refactor handleApplication logic
…c for user and exam applications
…dling with exam application integration
…unt log integration
…irtual account creation
…o feat/guest-application
|
Note Other AI code review bot(s) detectedCodeRabbit has detected other AI code review bot(s) in this pull request and will avoid duplicating their findings in the review comments. This may lead to a less comprehensive review. Caution Review failedThe pull request is closed. WalkthroughThis update introduces guest application support and refactors application and virtual account processing. It adds new DTOs, methods, and endpoints for guest users, centralizes shared logic, and modularizes virtual account event handling. Several new classes and methods are added for mapping, validation, and event publishing, and some existing APIs and entities are extended with new parameters and fields. Changes
Sequence Diagram(s)sequenceDiagram
participant Guest as Guest User
participant Controller as ApplicationController
participant Service as ApplicationService
participant UserService
participant QuotaManager as ExamQuotaCacheManager
Guest->>Controller: POST /applications/guest (ApplicationGuestRequest)
Controller->>Service: applyByGuest(request)
Service->>UserService: saveUser(request.toUserJpaEntity())
UserService-->>Service: userId
Service->>QuotaManager: incrementQuota(examId)
Service->>Service: handleApplication(userId, ...)
Service-->>Controller: CreateApplicationResponse
Controller-->>Guest: 201 Created (ApiResponseWrapper)
sequenceDiagram
participant System as System
participant VAService as VirtualAccountService
participant Processor as CreateVirtualAccountProcessor
participant Publisher as DepositEventPublisher
System->>VAService: create(CreateVirtualAccountRequest)
VAService->>Processor: process(request)
Processor-->>VAService: VirtualAccountResponse
VAService-->>System: VirtualAccountResponse
System->>VAService: onDepositEvent(DepositEventRequest)
VAService->>Publisher: publish(request)
Publisher-->>VAService: (void)
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Summary of Changes
Hello @polyglot-k, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!
This pull request introduces the capability for non-member users to apply for exams, streamlining the application process by automatically managing guest user accounts. A key enhancement is the integration of exam quota updates with virtual account payment statuses, ensuring that exam slots are accurately reflected and freed up upon payment failures. Furthermore, the virtual account system has undergone significant refactoring to improve its architecture and allow for dynamic calculation of payment amounts based on application specifics.
Highlights
- Guest Application Feature: A new feature has been implemented allowing non-member users to apply for exams. This includes automatic creation of a temporary user account for the guest and processing their application.
- Dynamic Exam Quota Management: The system now dynamically updates exam quotas based on virtual account payment events. Specifically, if a virtual account deposit fails or is canceled, the corresponding exam slot is automatically freed up by decreasing the quota.
- Virtual Account System Refactoring: The virtual account creation and deposit event handling logic has been significantly refactored. Responsibilities are now distributed among dedicated processors and event publishers/handlers, enhancing modularity and maintainability.
- Dynamic Virtual Account Amount Calculation: Virtual account creation now calculates the payment amount dynamically based on the specific exam application details, such as whether lunch is included, rather than using a fixed amount.
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Code Review
This pull request introduces functionality for non-member applications and virtual account payments, including logic to update exam quotas. The refactoring to use processors and event handlers for virtual account logic is well-executed and improves the overall design. A critical transactional issue with cache updates that could lead to data inconsistency was identified. There are also important points regarding API correctness, potential legal risks from hardcoded consent values, and a hardcoded amount that need to be addressed. Addressing these points will significantly improve the robustness and quality of the new features.
src/main/java/life/mosu/mosuserver/application/application/ApplicationService.java
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src/main/java/life/mosu/mosuserver/presentation/application/dto/ApplicationGuestRequest.java
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src/main/java/life/mosu/mosuserver/infra/toss/dto/TossVirtualAccountPayload.java
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src/main/java/life/mosu/mosuserver/presentation/application/ApplicationController.java
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...life/mosu/mosuserver/application/virtualaccount/processor/CreateVirtualAccountProcessor.java
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Actionable comments posted: 7
🧹 Nitpick comments (4)
src/main/java/life/mosu/mosuserver/domain/profile/entity/Gender.java (1)
16-22: Consider improving null safety and case handling.The implementation is functionally correct, but consider these improvements:
- Null safety: The method doesn't handle null input, which could cause NPE
- Case sensitivity: Consider case-insensitive matching for better user experience
Apply this diff for better robustness:
public static Gender fromName(String genderName) { + if (genderName == null) { + throw new IllegalArgumentException("Gender name cannot be null"); + } return Arrays.stream(Gender.values()) - .filter(g -> g.getGenderName().equals(genderName)) + .filter(g -> g.getGenderName().equalsIgnoreCase(genderName.trim())) .findFirst() .orElseThrow( () -> new IllegalArgumentException("Invalid gender name: " + genderName)); }src/main/java/life/mosu/mosuserver/domain/examapplication/service/ExamApplicationAmountCalculator.java (1)
12-16: Logic is correct, consider minor readability improvement.The amount calculation logic is sound and handles the lunch option correctly. The use of
.equals(Boolean.TRUE)is good defensive programming for null safety.Consider this minor refactor for improved readability:
public int calculate(ExamApplicationJpaEntity application) { - return application.getIsLunchChecked().equals(Boolean.TRUE) ? - BASE_AMOUNT + LUNCH_AMOUNT : - BASE_AMOUNT; + int totalAmount = BASE_AMOUNT; + if (Boolean.TRUE.equals(application.getIsLunchChecked())) { + totalAmount += LUNCH_AMOUNT; + } + return totalAmount; }src/main/java/life/mosu/mosuserver/presentation/application/ApplicationController.java (1)
41-41: Consider renaming query parameter for clarity.The query parameter
userIdmight be confusing for guest applications since guests don't have traditional user IDs. Consider usingapplicationIdto be more explicit about what the parameter represents.- .queryParam("userId", response.applicationId()) + .queryParam("applicationId", response.applicationId())src/main/java/life/mosu/mosuserver/application/application/dto/RegisterApplicationCommand.java (1)
11-11: Consider renaming field to match its plural nature.The field
examApplicationis singular but holds aList<ExamApplicationRequest>. Consider renaming it toexamApplicationsfor better clarity and consistency.- List<ExamApplicationRequest> examApplication, + List<ExamApplicationRequest> examApplications,
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src/main/java/life/mosu/mosuserver/application/application/ApplicationService.java(2 hunks)src/main/java/life/mosu/mosuserver/application/application/dto/RegisterApplicationCommand.java(1 hunks)src/main/java/life/mosu/mosuserver/application/application/processor/RegisterApplicationStepProcessor.java(1 hunks)src/main/java/life/mosu/mosuserver/application/user/UserService.java(1 hunks)src/main/java/life/mosu/mosuserver/application/virtualaccount/VirtualAccountCallbackService.java(1 hunks)src/main/java/life/mosu/mosuserver/application/virtualaccount/VirtualAccountLogService.java(1 hunks)src/main/java/life/mosu/mosuserver/application/virtualaccount/VirtualAccountService.java(1 hunks)src/main/java/life/mosu/mosuserver/application/virtualaccount/event/DepositEventHandler.java(1 hunks)src/main/java/life/mosu/mosuserver/application/virtualaccount/event/DepositEventPublisher.java(1 hunks)src/main/java/life/mosu/mosuserver/application/virtualaccount/event/DepositFailureEventHandler.java(1 hunks)src/main/java/life/mosu/mosuserver/application/virtualaccount/event/DepositSuccessEventHandler.java(1 hunks)src/main/java/life/mosu/mosuserver/application/virtualaccount/handler/DepositFailureEventHandler.java(0 hunks)src/main/java/life/mosu/mosuserver/application/virtualaccount/processor/CreateVirtualAccountProcessor.java(1 hunks)src/main/java/life/mosu/mosuserver/domain/examapplication/repository/ExamApplicationJpaRepository.java(1 hunks)src/main/java/life/mosu/mosuserver/domain/examapplication/service/ExamApplicationAmountCalculator.java(1 hunks)src/main/java/life/mosu/mosuserver/domain/profile/entity/Gender.java(2 hunks)src/main/java/life/mosu/mosuserver/domain/virtualaccount/VirtualAccountLogJpaEntity.java(3 hunks)src/main/java/life/mosu/mosuserver/domain/virtualaccount/service/DepositEventMapper.java(1 hunks)src/main/java/life/mosu/mosuserver/global/exception/ErrorCode.java(1 hunks)src/main/java/life/mosu/mosuserver/global/filter/Whitelist.java(1 hunks)src/main/java/life/mosu/mosuserver/infra/toss/dto/TossVirtualAccountPayload.java(1 hunks)src/main/java/life/mosu/mosuserver/presentation/application/ApplicationController.java(2 hunks)src/main/java/life/mosu/mosuserver/presentation/application/dto/ApplicationGuestRequest.java(1 hunks)src/main/java/life/mosu/mosuserver/presentation/virtualaccount/dto/CreateVirtualAccountRequest.java(1 hunks)
💤 Files with no reviewable changes (1)
- src/main/java/life/mosu/mosuserver/application/virtualaccount/handler/DepositFailureEventHandler.java
🧰 Additional context used
🧬 Code Graph Analysis (2)
src/main/java/life/mosu/mosuserver/application/virtualaccount/event/DepositFailureEventHandler.java (1)
src/main/java/life/mosu/mosuserver/presentation/virtualaccount/dto/event/DepositFailureEvent.java (1)
DepositFailureEvent(5-14)
src/main/java/life/mosu/mosuserver/domain/virtualaccount/service/DepositEventMapper.java (2)
src/main/java/life/mosu/mosuserver/presentation/virtualaccount/dto/event/DepositFailureEvent.java (1)
DepositFailureEvent(5-14)src/main/java/life/mosu/mosuserver/presentation/virtualaccount/dto/event/DepositSuccessEvent.java (1)
DepositSuccessEvent(5-14)
🔇 Additional comments (22)
src/main/java/life/mosu/mosuserver/global/exception/ErrorCode.java (1)
46-46: LGTM! Error code follows established conventions.The new
USER_SAVE_FAILEDerror code is properly positioned within the user-related errors section and follows the established pattern with appropriate HTTP status code and descriptive Korean message.src/main/java/life/mosu/mosuserver/application/virtualaccount/event/DepositSuccessEventHandler.java (1)
1-1: LGTM! Package reorganization improves code structure.Moving the event handler from
handlertoeventpackage is a good organizational improvement that better groups event-related components together.src/main/java/life/mosu/mosuserver/application/virtualaccount/VirtualAccountCallbackService.java (1)
3-4: LGTM! Import statements updated correctly for package reorganization.The import statements have been properly updated to reflect the movement of event handlers from the
handlertoeventpackage, maintaining functionality while improving code organization.src/main/java/life/mosu/mosuserver/application/application/processor/RegisterApplicationStepProcessor.java (1)
28-28: LGTM! Method access updated for improved command structure.The change from field access to method call reflects the improved
RegisterApplicationCommandstructure, likely now implemented as a record. This change supports the enhanced functionality for handling multiple exam applications while maintaining clean, encapsulated access to the data.src/main/java/life/mosu/mosuserver/application/virtualaccount/event/DepositEventHandler.java (1)
1-6: LGTM! Clean generic interface design.The interface follows good design principles with a clear, focused responsibility and proper generic typing. The package move to
eventaligns well with the architectural shift to event-driven processing.src/main/java/life/mosu/mosuserver/presentation/virtualaccount/dto/CreateVirtualAccountRequest.java (1)
3-8: LGTM! Clean DTO extension with proper field positioning.The addition of
applicationIdas the first field makes logical sense for identification purposes and aligns with the requirement to link virtual accounts to applications. The record structure remains clean and well-organized.src/main/java/life/mosu/mosuserver/domain/examapplication/repository/ExamApplicationJpaRepository.java (1)
156-163: Approval: Query and Entities VerifiedLGTM! The JPQL query in
ExamApplicationJpaRepository.java(lines 156–163) correctly joins onapplicationId, filters byorderId, and excludes deleted records. Returning anOptional<ExamApplicationJpaEntity>is appropriate for potentially missing data.• Confirmed
VirtualAccountLogJpaEntity.applicationIdis defined in
src/main/java/life/mosu/mosuserver/domain/virtualaccount/VirtualAccountLogJpaEntity.java(line 27).
• Query structure and return type are both correct.src/main/java/life/mosu/mosuserver/infra/toss/dto/TossVirtualAccountPayload.java (1)
19-20: AllofPartnershipcallers updated – change approvedThe search shows only one call site in
CreateVirtualAccountProcessor.javaand it’s passing the newamountparameter correctly. No further updates are needed.src/main/java/life/mosu/mosuserver/application/virtualaccount/event/DepositEventPublisher.java (1)
10-21: LGTM! Well-designed event publisher.The
DepositEventPublisherfollows good architectural practices:
- Clear separation of concerns between mapping and publishing
- Proper use of dependency injection
- Simple, focused method implementation
- Good encapsulation of event publishing logic
src/main/java/life/mosu/mosuserver/application/virtualaccount/VirtualAccountLogService.java (1)
23-32: Approved: All callers updated to includeapplicationIdVerified via an
rgsearch that the only external invocation in
src/main/java/life/mosu/mosuserver/application/virtualaccount/processor/CreateVirtualAccountProcessor.java
already passesrequest.applicationId()tosaveVirtualAccountLog. No other callers were found.src/main/java/life/mosu/mosuserver/application/virtualaccount/event/DepositFailureEventHandler.java (1)
21-32: Review complete:findByOrderIdexists – LGTMVerified that
ExamApplicationJpaRepositorydeclares the method at line 163 in
src/main/java/life/mosu/mosuserver/domain/examapplication/repository/ExamApplicationJpaRepository.java:@Query(""" SELECT e … JOIN VirtualAccountLogJpaEntity v ON e.applicationId = v.applicationId WHERE v.orderId = :orderId """) Optional<ExamApplicationJpaEntity> findByOrderId(String orderId);The
DepositFailureEventHandlerimplementation is solid—no further changes needed.src/main/java/life/mosu/mosuserver/domain/virtualaccount/service/DepositEventMapper.java (1)
14-23: LGTM - Clean event mapping implementation!The switch expression correctly maps deposit event statuses to appropriate domain events. The use of static factory methods and proper exception handling for invalid statuses follows good practices.
src/main/java/life/mosu/mosuserver/domain/virtualaccount/VirtualAccountLogJpaEntity.java (2)
26-27: LGTM - Proper field addition with consistent mapping.The new
applicationIdfield is correctly added with proper JPA column mapping and follows the existing entity patterns.
48-62: LGTM - Constructor and factory method updated consistently.The constructor and static factory method are properly updated to include the new
applicationIdparameter, maintaining consistency with the existing builder pattern.src/main/java/life/mosu/mosuserver/application/virtualaccount/VirtualAccountService.java (1)
15-24: Excellent refactoring - improved separation of concerns!The delegation to specialized components (
CreateVirtualAccountProcessorandDepositEventPublisher) follows good design principles and improves maintainability and testability while preserving the public API.src/main/java/life/mosu/mosuserver/application/virtualaccount/processor/CreateVirtualAccountProcessor.java (1)
30-62: Well-structured processor with good separation of concerns.The process method clearly orchestrates the virtual account creation flow with proper error handling and clean separation of responsibilities. Each step is focused and uses appropriate services.
src/main/java/life/mosu/mosuserver/application/application/dto/RegisterApplicationCommand.java (1)
15-32: LGTM! Well-designed factory methods with good backward compatibility.The two factory methods provide excellent flexibility - one for handling lists directly and an overloaded version that wraps a single request in a list. This design maintains backward compatibility while supporting the new multi-application feature.
src/main/java/life/mosu/mosuserver/application/application/ApplicationService.java (2)
46-54: LGTM! Good refactoring to reduce duplication.The extraction of shared logic into
handleApplicationis a clean refactoring that eliminates code duplication between regular and guest application flows.
69-93: LGTM! Well-structured centralized processing logic.The
handleApplicationmethod effectively consolidates the common application processing steps with proper validation ordering and clear separation of concerns.src/main/java/life/mosu/mosuserver/presentation/application/dto/ApplicationGuestRequest.java (3)
65-75: LGTM! Clear subject validation with appropriate error handling.The subject validation correctly ensures exactly 2 subjects are selected and throws a meaningful error for invalid counts.
85-93: LGTM! Secure password generation implementation.The password generation uses
SecureRandomand includes a good mix of characters (uppercase, lowercase, and digits) which provides adequate security for temporary guest passwords.
81-83: Database uniqueness constraint already in placeVerified that the
login_idcolumn onUserJpaEntityis annotated with@Column(name = "login_id", unique = true), so any UUID collision—even with an 8-character substring—will be rejected by the database.• File: src/main/java/life/mosu/mosuserver/domain/user/entity/UserJpaEntity.java:34
@Column(name = "login_id", unique = true, length = 50)No further changes are required unless you’d like to increase the substring length for added headroom; collisions will always be caught by the DB constraint.
src/main/java/life/mosu/mosuserver/application/application/ApplicationService.java
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| public Long saveUser(UserJpaEntity user) { | ||
| Long userId = userJpaRepository.save(user).getId(); | ||
| if (userId == null) { | ||
| throw new CustomRuntimeException(ErrorCode.USER_SAVE_FAILED); | ||
| } | ||
| return userId; | ||
| } |
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🧩 Analysis chain
Consider transaction handling and verify null check necessity.
The implementation looks good, but consider these improvements:
- Add
@Transactionalannotation - This method performs a database write operation and should be transactional. - Verify null check necessity - JPA repositories typically return entities with generated IDs after save. A null ID might indicate entity configuration issues rather than save failures.
Apply this diff to add transaction handling:
+ @Transactional
public Long saveUser(UserJpaEntity user) {Let me verify if the null ID check is actually necessary by examining the UserJpaEntity configuration:
🏁 Script executed:
#!/bin/bash
# Description: Check UserJpaEntity ID configuration to verify if null check is necessary
# Expected: Find @GeneratedValue or similar ID generation strategy
ast-grep --pattern $'@Entity
$$$
class UserJpaEntity {
$$$
@Id
$$$
Long $_id$$$;
$$$
}'Length of output: 98
🏁 Script executed:
#!/bin/bash
# Locate the UserJpaEntity source file and inspect its ID configuration
FILE=$(rg -l "class UserJpaEntity" --glob "*.java")
echo "UserJpaEntity file found at: $FILE"
# Show entity annotation, ID field, and any generation strategy
rg -n "@Entity" "$FILE"
rg -n "@Id" "$FILE"
rg -n "@GeneratedValue" "$FILE"Length of output: 691
Transaction Management & Redundant Null‐Check in saveUser
The JPA entity is configured with
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)so a non-null ID is guaranteed after a successful save(). Also, Spring Data JPA’s save() is already @Transactional. You can simplify and clarify the service method by:
• Removing the redundant null check
• Optionally annotating the service method with @Transactional if you plan to combine multiple repository calls in the same transaction
Locations to update:
- File:
src/main/java/life/mosu/mosuserver/application/user/UserService.java - Method:
public Long saveUser(UserJpaEntity user)
Proposed diff:
- public Long saveUser(UserJpaEntity user) {
- Long userId = userJpaRepository.save(user).getId();
- if (userId == null) {
- throw new CustomRuntimeException(ErrorCode.USER_SAVE_FAILED);
- }
- return userId;
- }
+ @Transactional // optional if you’ll add more operations here
+ public Long saveUser(UserJpaEntity user) {
+ return userJpaRepository.save(user).getId();
+ }🤖 Prompt for AI Agents
In src/main/java/life/mosu/mosuserver/application/user/UserService.java around
lines 40 to 46, remove the redundant null check for userId after saving the user
entity since the ID is guaranteed to be non-null by JPA. Simplify the method by
directly returning the saved user's ID. Optionally, add the @Transactional
annotation to the saveUser method if you plan to include multiple repository
operations in one transaction.
| orderId, request.customerName(), request.customerEmail(), bankCode, amount | ||
| ); | ||
|
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| CreateVirtualAccountResponse response = tossClient.createVirtualAccount(payload); |
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💡 Verification agent
🧩 Analysis chain
Consider adding error handling for external service calls.
The Toss client call could potentially fail due to network issues or service unavailability. Consider adding appropriate error handling or retry logic for better resilience.
Let me check if there's existing error handling in the Toss client:
🏁 Script executed:
#!/bin/bash
# Description: Check for error handling in TossVirtualAccountClient
# Expected: Find error handling or exception declarations
rg -A 10 -B 5 "class TossVirtualAccountClient" --type java
rg -A 5 "createVirtualAccount" --type javaLength of output: 3465
Add error handling and resilience around the Toss API call
The createVirtualAccount invocation in CreateVirtualAccountProcessor currently lets any RestClientException (or underlying HTTP errors) bubble up. We should wrap this call to:
- Catch and log failures from
tossClient.createVirtualAccount(payload) - Apply retry logic (e.g. Spring Retry) or fallback behavior
- Surface a clear, domain‐specific exception if all retries fail
Locations to update:
- src/main/java/life/mosu/mosuserver/application/virtualaccount/processor/CreateVirtualAccountProcessor.java:47
Suggested diff:
- CreateVirtualAccountResponse response = tossClient.createVirtualAccount(payload);
+ CreateVirtualAccountResponse response;
+ try {
+ response = tossClient.createVirtualAccount(payload);
+ } catch (RestClientException ex) {
+ log.error("Failed to create Toss virtual account (applicationId={}, orderId={})",
+ request.applicationId(), orderId, ex);
+ // TODO: retry or fallback logic here (e.g. Spring Retry)
+ throw new VirtualAccountCreationException(
+ "Could not create Toss virtual account", ex);
+ }📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| CreateVirtualAccountResponse response = tossClient.createVirtualAccount(payload); | |
| CreateVirtualAccountResponse response; | |
| try { | |
| response = tossClient.createVirtualAccount(payload); | |
| } catch (RestClientException ex) { | |
| log.error("Failed to create Toss virtual account (applicationId={}, orderId={})", | |
| request.applicationId(), orderId, ex); | |
| // TODO: retry or fallback logic here (e.g. Spring Retry) | |
| throw new VirtualAccountCreationException( | |
| "Could not create Toss virtual account", ex); | |
| } |
🤖 Prompt for AI Agents
In
src/main/java/life/mosu/mosuserver/application/virtualaccount/processor/CreateVirtualAccountProcessor.java
at line 47, the call to tossClient.createVirtualAccount(payload) lacks error
handling and resilience. Wrap this call in a try-catch block to catch
RestClientException, log the error details, and implement retry logic using
Spring Retry or a similar mechanism. If all retries fail, throw a clear,
domain-specific exception to indicate the failure to create a virtual account.
src/main/java/life/mosu/mosuserver/presentation/application/ApplicationController.java
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src/main/java/life/mosu/mosuserver/presentation/application/dto/ApplicationGuestRequest.java
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src/main/java/life/mosu/mosuserver/presentation/application/dto/ApplicationGuestRequest.java
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Summary by CodeRabbit
New Features
Improvements
Bug Fixes
Refactor