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Viktoriia Herchanivska

PROFILE

Viktoriia Herchanivska

Viktoriia Herchanivska contributed to the GreenCity and GreenCityUser repositories by delivering backend features and reliability improvements over two months. She optimized notification user count queries to enhance performance and accuracy, refactored SQL and localization files, and strengthened unit tests using Java and SQL. In GreenCityUser, she led a terminology overhaul, updating the application to use “to-do list” instead of “shopping list” across entities and endpoints. Her work also addressed API security and comment handling, introducing robust exception handling and security configuration with Spring Boot. These efforts improved maintainability, data integrity, and user experience through thoughtful backend engineering and testing.

Overall Statistics

Feature vs Bugs

80%Features

Repository Contributions

15Total
Bugs
1
Commits
15
Features
4
Lines of code
12,783
Activity Months2

Work History

November 2024

13 Commits • 3 Features

Nov 1, 2024

November 2024 monthly summary: Delivered substantial improvements across GreenCity and GreenCityUser focusing on user clarity, API reliability, security, and maintainability. Key features include UI Template Path Resolution Fixes to ensure correct template loading with core/ prefix for management and habit-related to-do views, and a comprehensive To-do List terminology overhaul across GreenCityUser (renaming shopping list to to-do list in User entity, VO/DTO, mapper, services, and endpoints). Major bug fixes centered on Comment Handling robustness and API security, including NotFound checks, corrected IDs/variable naming, security config updates, parent comment existence checks, and sonar issue remediation. In addition, a dedicated effort on Test Suite and Code Quality Improvements enhances test integrity and code readability project-wide. These changes reduce UI rendering risks, improve API security and data integrity, standardize terminology for better user experience, and boost maintainability and developer productivity.

October 2024

2 Commits • 1 Features

Oct 1, 2024

Monthly summary for 2024-10: Implemented Notification Action-User Count Optimization in GreenCity to improve performance and reliability of counting users who act on notifications. Introduced a new query in NotificationRepo to count unread/action users and wired it in NotificationServiceImpl. SQL styling standardized; localization properties file renamed; tests strengthened by mocking countActionUsers. Commits referenced: f2f30ebe5005c3196728fc290b03b3d2232f32d9, 4a2c7e9526c75b38d633595725aaad2e51007216.

Activity

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Quality Metrics

Correctness90.8%
Maintainability90.8%
Architecture85.2%
Performance89.4%
AI Usage20.0%

Skills & Technologies

Programming Languages

JSONJavaPropertiesSQL

Technical Skills

API DesignBackend DevelopmentDatabase ManagementDatabase Query OptimizationException HandlingJavaRefactoringSecurity ConfigurationSpring BootSpring FrameworkTestingUnit Testing

Repositories Contributed To

2 repos

Overview of all repositories you've contributed to across your timeline

ita-social-projects/GreenCity

Oct 2024 Nov 2024
2 Months active

Languages Used

JavaPropertiesSQL

Technical Skills

Backend DevelopmentDatabase ManagementDatabase Query OptimizationJavaUnit TestingException Handling

ita-social-projects/GreenCityUser

Nov 2024 Nov 2024
1 Month active

Languages Used

JSONJava

Technical Skills

API DesignBackend DevelopmentJavaRefactoring

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