traPtitech/Jomon
Nov 2024 – Jul 2025
5 Months active
Languages Used
GoJavaScript
Technical Skills
API DevelopmentBackend DevelopmentData ModelingError HandlingGoLinting
Hueter
PROFILE
Hueter
Kohsuke Mori contributed to traPtitech/Jomon by modernizing backend APIs, strengthening authentication flows, and integrating AWS S3-based file storage. He refactored the GetMe API to improve error handling and unify return types, enhancing reliability for user-facing endpoints. Using Go and the AWS SDK, he implemented S3-backed storage with robust CRUD operations and context-aware lifecycle management. Kohsuke also evolved authentication by adding PKCE and referer-based redirects, reducing login friction and improving security. His work included rigorous test suite modernization and codebase linting, resulting in more maintainable, stable releases and a smoother developer experience across the project’s backend infrastructure.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
35Total
Bugs
0
Commits
35
Features
11
Lines of code
2,478
Activity Months5
Your Network
11 people
Work History
July 2025
1 Commits • 1 Features
Jul 1, 2025July 2025 — traPtitech/Jomon: Hardened authentication redirect flow and improved post-auth reliability. Key work delivered: User Authentication Redirect Robustness feature, ensuring redirects to root '/' only when referrer retrieval fails. This reduces the risk of unintended redirects, improves user experience, and lowers support friction. The change is a small, well-scoped commit (f45bf342936a25e811e323e0d899716dc97f0a92) that enhances security, maintainability, and traceability for future audits.
1 Commits • 1 Features
Jul 1, 2025July 2025 — traPtitech/Jomon: Hardened authentication redirect flow and improved post-auth reliability. Key work delivered: User Authentication Redirect Robustness feature, ensuring redirects to root '/' only when referrer retrieval fails. This reduces the risk of unintended redirects, improves user experience, and lowers support friction. The change is a small, well-scoped commit (f45bf342936a25e811e323e0d899716dc97f0a92) that enhances security, maintainability, and traceability for future audits.
July 2025
June 2025
14 Commits • 4 Features
Jun 1, 2025June 2025 — Delivered significant storage and authentication improvements for traPtitech/Jomon, focusing on reliability, security, and maintainability. Implemented S3-backed file storage with full CRUD support and robust error handling; enhanced authentication flow with session referer redirects and PKCE integration; evolved storage API to include context.Context for better lifecycle control; completed code organization cleanups to improve readability; stabilized CI around storage changes.
June 2025
14 Commits • 4 Features
Jun 1, 2025June 2025 — Delivered significant storage and authentication improvements for traPtitech/Jomon, focusing on reliability, security, and maintainability. Implemented S3-backed file storage with full CRUD support and robust error handling; enhanced authentication flow with session referer redirects and PKCE integration; evolved storage API to include context.Context for better lifecycle control; completed code organization cleanups to improve readability; stabilized CI around storage changes.
May 2025
3 Commits • 1 Features
May 1, 2025May 2025 (traPtitech/Jomon): Delivered focused test-suite modernization to boost reliability and maintainability. Primary work centered on replacing testify/assert with testify/require in router and model tests to ensure immediate failures and reduce flaky tests, complemented by a lint clean-up to remove trailing newline issues in test files. No feature releases this month; the activities materially de-risk upcoming deployments by improving test feedback loops and code quality.
3 Commits • 1 Features
May 1, 2025May 2025 (traPtitech/Jomon): Delivered focused test-suite modernization to boost reliability and maintainability. Primary work centered on replacing testify/assert with testify/require in router and model tests to ensure immediate failures and reduce flaky tests, complemented by a lint clean-up to remove trailing newline issues in test files. No feature releases this month; the activities materially de-risk upcoming deployments by improving test feedback loops and code quality.
May 2025
December 2024
9 Commits • 3 Features
Dec 1, 2024December 2024 monthly summary for traPtitech/Jomon focused on strengthening data integrity, webhook reliability for transaction events, and test stability to reduce CI flakiness. The team executed a series of architecture-oriented refactors and targeted fixes to enable safer releases and faster feature iterations within transaction processing workflows.
December 2024
9 Commits • 3 Features
Dec 1, 2024December 2024 monthly summary for traPtitech/Jomon focused on strengthening data integrity, webhook reliability for transaction events, and test stability to reduce CI flakiness. The team executed a series of architecture-oriented refactors and targeted fixes to enable safer releases and faster feature iterations within transaction processing workflows.
November 2024
8 Commits • 2 Features
Nov 1, 2024November 2024: Delivered reliability and readability enhancements for traPtitech/Jomon. The GetMe API was modernized to fetch by ID with robust error handling, including a clear 404 when not found, and the return shape was unified to router.User via a converter. The changes consolidated multiple GetMe-related updates into a single, stable user-facing feature. In addition, the User Router codebase was cleaned up for readability and maintainability, standardizing variable naming to lowerCamelCase and addressing lint/style issues to satisfy golangci-lint. Tests were updated to reflect the new return type and error semantics, increasing test reliability and reducing regressions.
8 Commits • 2 Features
Nov 1, 2024November 2024: Delivered reliability and readability enhancements for traPtitech/Jomon. The GetMe API was modernized to fetch by ID with robust error handling, including a clear 404 when not found, and the return shape was unified to router.User via a converter. The changes consolidated multiple GetMe-related updates into a single, stable user-facing feature. In addition, the User Router codebase was cleaned up for readability and maintainability, standardizing variable naming to lowerCamelCase and addressing lint/style issues to satisfy golangci-lint. Tests were updated to reflect the new return type and error semantics, increasing test reliability and reducing regressions.
November 2024
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Quality Metrics
Correctness87.4%
Maintainability88.4%
Architecture81.4%
Performance83.4%
AI Usage20.0%
Skills & Technologies
Programming Languages
GoJavaScript
Technical Skills
API DesignAPI DevelopmentAPI IntegrationAWS S3AWS SDKAuthenticationBackend DevelopmentCI/CDCloud StorageCloud Storage IntegrationContext ManagementData ModelingDependency ManagementError HandlingEvent Handling
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