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justin

PROFILE

Justin

Worked on the uprm-inso4101-2024-2025-s2/semester-project--uprm-online-marketplace repository, building out Firestore-backed listing features for a mobile marketplace. Migrated listing data from in-memory storage to Cloud Firestore, implementing asynchronous data retrieval and mapping Firestore documents to domain objects using Dart and Flutter. Integrated user authentication to associate listings with creator IDs and enabled real-time updates for ownership and favorites across the UI. Updated unit tests to support asynchronous Firebase operations, ensuring data consistency and integrity. The work replaced all dummy data with live Firestore data, providing scalable, real-time listing management and personalized user experiences throughout the application.

Overall Statistics

Feature vs Bugs

100%Features

Repository Contributions

3Total
Bugs
0
Commits
3
Features
2
Lines of code
804
Activity Months2

Work History

April 2025

2 Commits • 1 Features

Apr 1, 2025

April 2025: Completed migration of listings to Firestore as the primary data source, establishing user ownership and isFavorite support across the UI. Listings creation now saves under the active user's ID, and the UI components (HouseTile, MyListings, InactiveListings, FavoritesPage) consume real-time Firestore data. Replaced all dummy data with live Firestore data to enable real-time updates and accurate ownership.

March 2025

1 Commits • 1 Features

Mar 1, 2025

March 2025: Implemented Firebase Firestore integration for listing data, replacing in-memory retrieval with asynchronous fetchListing and fetchListings. Added Lodging factory constructor to map Firestore documents to Lodging objects. Updated tests to reflect async Firebase operations. No major bugs fixed this month; minor test adjustments were made. This work improves data consistency, reduces data retrieval latency, and enables scalable listing handling for the marketplace.

Activity

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Quality Metrics

Correctness86.6%
Maintainability80.0%
Architecture80.0%
Performance80.0%
AI Usage20.0%

Skills & Technologies

Programming Languages

DartJava

Technical Skills

Asynchronous ProgrammingCloud FirestoreData ModelingFirebaseFirestoreFlutterMobile DevelopmentObject-Oriented ProgrammingState ManagementUnit TestingUser Authentication

Repositories Contributed To

1 repo

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

uprm-inso4101-2024-2025-s2/semester-project--uprm-online-marketplace

Mar 2025 Apr 2025
2 Months active

Languages Used

DartJava

Technical Skills

Asynchronous ProgrammingData ModelingFirebaseFirestoreUnit TestingCloud Firestore