opengovsg/plumber
Feb 2025 – Jul 2025
3 Months active
Languages Used
JavaScriptTypeScript
Technical Skills
API IntegrationBackend DevelopmentForm HandlingZod ValidationSubscription ManagementAPI Development
Justyn Oh
PROFILE
Justyn Oh
Justyn Oh developed and enhanced payment workflows for the opengovsg/plumber repository over a three-month period, focusing on both one-time and recurring payment integrations. He implemented new PaySG actions that enabled in-browser payment submissions and automated recurring subscription payments via FormSG forms, replacing legacy email-based flows and reducing manual processing. Using TypeScript and JavaScript, he designed robust backend features with careful schema updates and Zod validation, ensuring backward compatibility and smooth integration. His work included adding optional payer data fields to support analytics and reconciliation, demonstrating a thoughtful approach to extensibility, maintainability, and the evolving needs of payment infrastructure.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
3Total
Bugs
0
Commits
3
Features
3
Lines of code
480
Activity Months3
Your Network
3 peopleShared Repositories
3
Work History
July 2025
1 Commits • 1 Features
Jul 1, 2025Concise monthly summary for 2025-07 focusing on key accomplishments in opengovsg/plumber. This month delivered a feature enhancement to PaySG one-time payments by adding optional payer_address and payer_identifier fields, aligning with subscription payments, updating schemas and action configurations without breaking existing integrations. The change enables richer payer data for analytics, improved reconciliation, and smoother parity between one-time and subscription payment flows. The update was implemented with a non-breaking approach and included targeted regression considerations.
1 Commits • 1 Features
Jul 1, 2025Concise monthly summary for 2025-07 focusing on key accomplishments in opengovsg/plumber. This month delivered a feature enhancement to PaySG one-time payments by adding optional payer_address and payer_identifier fields, aligning with subscription payments, updating schemas and action configurations without breaking existing integrations. The change enables richer payer data for analytics, improved reconciliation, and smoother parity between one-time and subscription payment flows. The update was implemented with a non-breaking approach and included targeted regression considerations.
July 2025
March 2025
1 Commits • 1 Features
Mar 1, 2025March 2025 monthly summary for opengovsg/plumber: Delivered a new PaySG Recurring Subscription Submissions Action to enable recurring monthly payments via a FormSG form. This included creating new action files, defining its schema, and updating the main actions index to expose the new functionality. No major bugs fixed this month; focus was on feature delivery and architectural readiness for PaySG subscriptions.
March 2025
1 Commits • 1 Features
Mar 1, 2025March 2025 monthly summary for opengovsg/plumber: Delivered a new PaySG Recurring Subscription Submissions Action to enable recurring monthly payments via a FormSG form. This included creating new action files, defining its schema, and updating the main actions index to expose the new functionality. No major bugs fixed this month; focus was on feature delivery and architectural readiness for PaySG subscriptions.
February 2025
1 Commits • 1 Features
Feb 1, 2025February 2025 monthly summary focusing on feature delivery and payments workflow improvements for the opengovsg/plumber repository. Primary focus this month was delivering a new payment integration flow via PaySG, with no major bug fixes reported. The work enhances user payment experience and sets up a scalable pattern for future FormSG-related actions.
1 Commits • 1 Features
Feb 1, 2025February 2025 monthly summary focusing on feature delivery and payments workflow improvements for the opengovsg/plumber repository. Primary focus this month was delivering a new payment integration flow via PaySG, with no major bug fixes reported. The work enhances user payment experience and sets up a scalable pattern for future FormSG-related actions.
February 2025
Activity
Loading activity data...
Quality Metrics
Correctness93.4%
Maintainability93.4%
Architecture93.4%
Performance80.0%
AI Usage26.6%
Skills & Technologies
Programming Languages
JavaScriptTypeScript
Technical Skills
API DevelopmentAPI IntegrationBackend DevelopmentForm HandlingSchema DesignSubscription ManagementZod Validation
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline