TanStack/query
Mar 2025 – Jun 2025
4 Months active
Languages Used
JavaScriptTypeScriptMarkdownCSS
Technical Skills
Asynchronous ProgrammingJavaScriptReactReact QueryTestingTypeScript
MINSEONG KIM
PROFILE
Minseong Kim
Kwan contributed to the TanStack/query repository by enhancing test reliability, expanding core test coverage, and improving developer tooling. Over four months, Kwan stabilized asynchronous test suites using fake timers and strengthened TypeScript type-safety, reducing CI flakiness and supporting safer releases. They delivered features such as a Static Query Indicator in Query DevTools, implemented with React and CSS, to visualize query states. Kwan enforced code quality through ESLint configuration and refactored code to remove unnecessary async usage, improving maintainability. Their work demonstrated deep expertise in JavaScript, TypeScript, and React Query, with a focus on robust testing and consistent code standards.
Overall Statistics
Feature vs Bugs
55%Features
Repository Contributions
44Total
Bugs
5
Commits
44
Features
6
Lines of code
1,120
Activity Months4
Your Network
1134 people
Work History
June 2025
2 Commits • 2 Features
Jun 1, 2025June 2025 monthly summary for TanStack/query focusing on feature delivery and code quality improvements. Key features delivered include a Static Query Indicator in Query DevTools to visually signal when a query's staleTime is set to 'static', along with the detection logic and CSS styling. Additionally, enforcement of code quality and async handling via a typescript-eslint rule (require-await) reduced unnecessary async usage in tests and codemods, improving consistency and maintainability. These changes enhance developer experience, reduce debugging time, and contribute to more predictable asynchronous behavior.
2 Commits • 2 Features
Jun 1, 2025June 2025 monthly summary for TanStack/query focusing on feature delivery and code quality improvements. Key features delivered include a Static Query Indicator in Query DevTools to visually signal when a query's staleTime is set to 'static', along with the detection logic and CSS styling. Additionally, enforcement of code quality and async handling via a typescript-eslint rule (require-await) reduced unnecessary async usage in tests and codemods, improving consistency and maintainability. These changes enhance developer experience, reduce debugging time, and contribute to more predictable asynchronous behavior.
June 2025
May 2025
5 Commits • 1 Features
May 1, 2025Month: 2025-05 — TanStack/query focused on strengthening test coverage for the query-core subsystem, delivering a comprehensive test suite that validates core behaviors and guardrails against regressions. The primary feature delivered was Query Core Test Coverage Improvements, adding extensive tests across useSuspenseQuery with refetchInterval, InfiniteQueryBehavior, optimistic updates, and queryObserver options (refetchOnWindowFocus, fetchOptimistic, error tracking, fetchStatus), plus coverage for persisters and invalid query keys. A refactor to hashQueryKeyByOptions was included to improve reliability and hash-based caching. The work is supported by focused test commits (test(react-query): add test case for useSuspenseQuery (#8731); test(query-core): add test case for infiniteQueryBehavior (#9101); test(query-core): add test case for InfiniteQueryObserver (#9141); test(query-core): add test case for queryObserver (#9146); test(query-core): add test case for query (#9145)).
May 2025
5 Commits • 1 Features
May 1, 2025Month: 2025-05 — TanStack/query focused on strengthening test coverage for the query-core subsystem, delivering a comprehensive test suite that validates core behaviors and guardrails against regressions. The primary feature delivered was Query Core Test Coverage Improvements, adding extensive tests across useSuspenseQuery with refetchInterval, InfiniteQueryBehavior, optimistic updates, and queryObserver options (refetchOnWindowFocus, fetchOptimistic, error tracking, fetchStatus), plus coverage for persisters and invalid query keys. A refactor to hashQueryKeyByOptions was included to improve reliability and hash-based caching. The work is supported by focused test commits (test(react-query): add test case for useSuspenseQuery (#8731); test(query-core): add test case for infiniteQueryBehavior (#9101); test(query-core): add test case for InfiniteQueryObserver (#9141); test(query-core): add test case for queryObserver (#9146); test(query-core): add test case for query (#9145)).
April 2025
30 Commits • 3 Features
Apr 1, 2025April 2025: Stabilized test suites, improved code quality, and tidied API surface across TanStack/query. Key work included ESLint require-await fixes across core modules, the introduction of fake timers to stabilize timing-sensitive tests, expansion of query-core test coverage, and targeted test cleanup and API surface refinements. These changes reduce CI flakiness, improve maintainability, and support faster, safer development cycles.
30 Commits • 3 Features
Apr 1, 2025April 2025: Stabilized test suites, improved code quality, and tidied API surface across TanStack/query. Key work included ESLint require-await fixes across core modules, the introduction of fake timers to stabilize timing-sensitive tests, expansion of query-core test coverage, and targeted test cleanup and API surface refinements. These changes reduce CI flakiness, improve maintainability, and support faster, safer development cycles.
April 2025
March 2025
7 Commits
Mar 1, 2025March 2025: Stabilized the TanStack/query test suite and tightened TypeScript/type-safety across tests; introduced deterministic tests using fake timers; resolved ESLint warnings; enabling faster, safer releases and improved CI reliability.
March 2025
7 Commits
Mar 1, 2025March 2025: Stabilized the TanStack/query test suite and tightened TypeScript/type-safety across tests; introduced deterministic tests using fake timers; resolved ESLint warnings; enabling faster, safer releases and improved CI reliability.
Activity
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Quality Metrics
Correctness98.8%
Maintainability98.6%
Architecture97.8%
Performance97.2%
AI Usage20.4%
Skills & Technologies
Programming Languages
CSSJavaScriptMarkdownTypeScript
Technical Skills
Asynchronous ProgrammingCode CleanupCode QualityDocumentationESLintESLint ConfigurationFront-end DevelopmentFrontend DevelopmentJavaScriptReactReact QueryRefactoringTestingTypeScriptUI Development
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