pinpoint-apm/pinpoint
Nov 2024 – May 2026
18 Months active
Languages Used
JavaScriptTypeScriptCSSJSONtsxSCSSShellHTML
Technical Skills
API IntegrationChart LibrariesChart VisualizationConfiguration ManagementData VisualizationDate Formatting
jihea.park
PROFILE
Jihea.park
Over 18 months, contributed to the pinpoint-apm/pinpoint repository by building and refining advanced observability dashboards, real-time analytics, and interactive data visualizations. Leveraged React, TypeScript, and ECharts to deliver features such as heatmaps, server maps, and Apdex scoring, while modernizing UI components for accessibility, localization, and performance. Migrated data fetching to React Query, improved state management with Jotai, and enhanced reliability through robust error handling and automated testing. Upgraded build tooling with Vite and streamlined CI/CD workflows using GitHub Actions. Refactored core modules for maintainability, enabling faster feature delivery and more accurate, actionable insights for end users.
Overall Statistics
Feature vs Bugs
78%Features
Repository Contributions
262Total
Bugs
25
Commits
262
Features
89
Lines of code
224,978
Activity Months18
Your Network
57 peopleSame Organization
@navercorp.com37
Work History
May 2026
2 Commits • 1 Features
May 1, 2026May 2026 — Pinpoint: Server Map Visualization Improvements in pinpoint-apm/pinpoint. Implemented backend-driven time-series Apdex rendering using pre-aggregated apdexSlot (0–24) to align visuals with server counts, and fixed a rendering gap for single-slot Apdex by drawing a full circle. Also widened the divider between service name and count for clearer node visuals and mapped UNCOLLECTED_VALUE (-1) to Excellent for display. Result: more accurate, scalable server-map visuals with reduced client-side computation and improved troubleshooting signals.
2 Commits • 1 Features
May 1, 2026May 2026 — Pinpoint: Server Map Visualization Improvements in pinpoint-apm/pinpoint. Implemented backend-driven time-series Apdex rendering using pre-aggregated apdexSlot (0–24) to align visuals with server counts, and fixed a rendering gap for single-slot Apdex by drawing a full circle. Also widened the divider between service name and count for clearer node visuals and mapped UNCOLLECTED_VALUE (-1) to Excellent for display. Result: more accurate, scalable server-map visuals with reduced client-side computation and improved troubleshooting signals.
May 2026
March 2026
5 Commits • 3 Features
Mar 1, 2026March 2026 focused on resilience, reliability, and maintainability for pinpoint. Delivered route resilience for loaders to prevent backend outages from breaking date parameter validation and redirects, improved repository hygiene and CI/CD readiness through tooling and workflow improvements, and expanded testing coverage to raise confidence in UI behavior and deployments. These changes reduce incident surface, improve user experience during backend outages, and streamline development workflows.
March 2026
5 Commits • 3 Features
Mar 1, 2026March 2026 focused on resilience, reliability, and maintainability for pinpoint. Delivered route resilience for loaders to prevent backend outages from breaking date parameter validation and redirects, improved repository hygiene and CI/CD readiness through tooling and workflow improvements, and expanded testing coverage to raise confidence in UI behavior and deployments. These changes reduce incident surface, improve user experience during backend outages, and streamline development workflows.
February 2026
5 Commits • 3 Features
Feb 1, 2026February 2026 (2026-02) monthly summary for pinpoint-apm/pinpoint: Key features delivered and reliability improvements across UI, API, and routing; stabilized configuration management; improved chart visuals; modernized routing.
5 Commits • 3 Features
Feb 1, 2026February 2026 (2026-02) monthly summary for pinpoint-apm/pinpoint: Key features delivered and reliability improvements across UI, API, and routing; stabilized configuration management; improved chart visuals; modernized routing.
February 2026
January 2026
15 Commits • 4 Features
Jan 1, 2026Monthly performance summary for 2026-01 focusing on the pinpoint-apm/pinpoint repository. The month delivered a series of chart, UI, and data-visualization improvements across core components, driving faster rendering, clearer analytics, and more actionable performance insights for users.
January 2026
15 Commits • 4 Features
Jan 1, 2026Monthly performance summary for 2026-01 focusing on the pinpoint-apm/pinpoint repository. The month delivered a series of chart, UI, and data-visualization improvements across core components, driving faster rendering, clearer analytics, and more actionable performance insights for users.
December 2025
17 Commits • 3 Features
Dec 1, 2025Monthly summary for pinpoint-apm/pinpoint (Dec 2025): Focused on UI/UX improvements, stability, security, and maintainability. Delivered key features for Group Management and ServerMap, hardened UI components against security vulnerabilities, modernized the codebase with refactors and dependency upgrades, and established robust testing for UI and server-map components. The work emphasized business value—improved user configuration flows, faster ServerMap rendering, fewer runtime warnings, and a stronger security posture—while reducing technical debt through modularization and forwardRef removal.
17 Commits • 3 Features
Dec 1, 2025Monthly summary for pinpoint-apm/pinpoint (Dec 2025): Focused on UI/UX improvements, stability, security, and maintainability. Delivered key features for Group Management and ServerMap, hardened UI components against security vulnerabilities, modernized the codebase with refactors and dependency upgrades, and established robust testing for UI and server-map components. The work emphasized business value—improved user configuration flows, faster ServerMap rendering, fewer runtime warnings, and a stronger security posture—while reducing technical debt through modularization and forwardRef removal.
December 2025
November 2025
26 Commits • 9 Features
Nov 1, 2025November 2025 (2025-11) highlights for pinpoint-apm/pinpoint: Delivered structural and UI enhancements that improve metrics accuracy, dashboard reliability, and developer productivity, while modernizing the tech stack to enable faster feature delivery. Business value is reflected in more accurate time histograms, fewer stale visuals, clearer observability data, and a stronger foundation for future work.
November 2025
26 Commits • 9 Features
Nov 1, 2025November 2025 (2025-11) highlights for pinpoint-apm/pinpoint: Delivered structural and UI enhancements that improve metrics accuracy, dashboard reliability, and developer productivity, while modernizing the tech stack to enable faster feature delivery. Business value is reflected in more accurate time histograms, fewer stale visuals, clearer observability data, and a stronger foundation for future work.
October 2025
12 Commits • 4 Features
Oct 1, 2025October 2025 (2025-10) monthly summary for pinpoint-apm/pinpoint focused on delivering targeted analytics features, UI reliability improvements, bug fixes, and dev tooling upgrades that collectively increase business value and engineering velocity.
12 Commits • 4 Features
Oct 1, 2025October 2025 (2025-10) monthly summary for pinpoint-apm/pinpoint focused on delivering targeted analytics features, UI reliability improvements, bug fixes, and dev tooling upgrades that collectively increase business value and engineering velocity.
October 2025
September 2025
24 Commits • 8 Features
Sep 1, 2025September 2025 (pinpoint-apm/pinpoint) focused on accessibility, stability, and tooling upgrades. Delivered keyboard navigation and focus improvements for ApplicationCombinedList, default InstanceCount visibility when serverMapCurrentTarget is undefined, and UI loading enhancements for MetricDefinitionForm with inspector/heatmap toggles. Relocated ServerListFetcher to /packages/ui to improve module boundaries. Upgraded Storybook from v6 to v9 and ESLint from v8 to v9, removing deprecated addons and aligning with Vite builds. Implemented a broad set of bug fixes across Chart rendering/configuration, server-map/storybook rendering, and inspector behavior, plus maintenance work such as removing SWR and applying code-review changes. These changes enhance user experience, stability, and developer velocity.
September 2025
24 Commits • 8 Features
Sep 1, 2025September 2025 (pinpoint-apm/pinpoint) focused on accessibility, stability, and tooling upgrades. Delivered keyboard navigation and focus improvements for ApplicationCombinedList, default InstanceCount visibility when serverMapCurrentTarget is undefined, and UI loading enhancements for MetricDefinitionForm with inspector/heatmap toggles. Relocated ServerListFetcher to /packages/ui to improve module boundaries. Upgraded Storybook from v6 to v9 and ESLint from v8 to v9, removing deprecated addons and aligning with Vite builds. Implemented a broad set of bug fixes across Chart rendering/configuration, server-map/storybook rendering, and inspector behavior, plus maintenance work such as removing SWR and applying code-review changes. These changes enhance user experience, stability, and developer velocity.
August 2025
18 Commits • 3 Features
Aug 1, 2025August 2025 (2025-08) performance summary for pinpoint-apm/pinpoint: Key features delivered, major bugs fixed, and overall impact with a focus on business value and stability. Key features delivered: Server Map Enhancements and Apdex Visualization with UI/API fetch refactors and improved error handling; Data Fetching Migration to React Query across core API hooks for better caching and suspense; UI and Data Reliability Improvements including VirtualizedDataTable focus handling, accurate favorites, navigation optimization, and API retry behavior. Major bugs fixed: resolved timeSeriesApdexInfo bug on server map; fixed merged node interactions that could trigger errors when changing timeRange; corrected favorites/application list errors; ensured SystemMetric data display and safe query handling for invalid strings. Overall impact: more stable and reliable monitoring dashboards, faster data access and troubleshooting, reduced defects in UI flows, and improved developer experience. Technologies/skills demonstrated: React Query migration, caching and suspense optimization, API fetch refactors, error handling improvements, data reliability techniques, and UI/UX stabilization with virtualization and focus management.
18 Commits • 3 Features
Aug 1, 2025August 2025 (2025-08) performance summary for pinpoint-apm/pinpoint: Key features delivered, major bugs fixed, and overall impact with a focus on business value and stability. Key features delivered: Server Map Enhancements and Apdex Visualization with UI/API fetch refactors and improved error handling; Data Fetching Migration to React Query across core API hooks for better caching and suspense; UI and Data Reliability Improvements including VirtualizedDataTable focus handling, accurate favorites, navigation optimization, and API retry behavior. Major bugs fixed: resolved timeSeriesApdexInfo bug on server map; fixed merged node interactions that could trigger errors when changing timeRange; corrected favorites/application list errors; ensured SystemMetric data display and safe query handling for invalid strings. Overall impact: more stable and reliable monitoring dashboards, faster data access and troubleshooting, reduced defects in UI flows, and improved developer experience. Technologies/skills demonstrated: React Query migration, caching and suspense optimization, API fetch refactors, error handling improvements, data reliability techniques, and UI/UX stabilization with virtualization and focus management.
August 2025
July 2025
17 Commits • 8 Features
Jul 1, 2025July 2025 highlights for pinpoint-apm/pinpoint: security, observability, timezone support, and UI/stability improvements, delivering measurable business value and a more reliable developer experience. The month focused on hardening security for agent management, enhancing diagnostic visuals, enabling global timestamp accuracy, and stabilizing the UI with persistent layouts and consistent storage usage, while cleaning up data models and fixing reliability issues.
July 2025
17 Commits • 8 Features
Jul 1, 2025July 2025 highlights for pinpoint-apm/pinpoint: security, observability, timezone support, and UI/stability improvements, delivering measurable business value and a more reliable developer experience. The month focused on hardening security for agent management, enhancing diagnostic visuals, enabling global timestamp accuracy, and stabilizing the UI with persistent layouts and consistent storage usage, while cleaning up data models and fixing reliability issues.
June 2025
9 Commits • 4 Features
Jun 1, 2025June 2025 performance summary for pinpoint-apm/pinpoint: Frontend refinements focused on UI polish, charting reliability, and developer workflow improvements to boost dashboard responsiveness and localization readiness. Delivered iconography cleanup with i18n groundwork, charting upgrades and resilience, UI/UX enhancements, and a shift of quality gates to CI/CD.
9 Commits • 4 Features
Jun 1, 2025June 2025 performance summary for pinpoint-apm/pinpoint: Frontend refinements focused on UI polish, charting reliability, and developer workflow improvements to boost dashboard responsiveness and localization readiness. Delivered iconography cleanup with i18n groundwork, charting upgrades and resilience, UI/UX enhancements, and a shift of quality gates to CI/CD.
June 2025
May 2025
14 Commits • 4 Features
May 1, 2025May 2025 highlights across pinpoint-apm/pinpoint: Delivered impactful Heatmap and Server Map improvements, fixed data integrity edge cases, and hardened developer workflows. Key features delivered include Heatmap Visualization Enhancements with Apdex display, HelpPopover, and export reliability; Server Map Data Model Refactor standardizing Agent interface and consolidating filtering metadata; Server Map UX Enhancements adding chart tooltips and default heatmap view. Major bug fixes covered Time Series Data Integrity Fixes addressing histogram merge edge cases and ServerChartsBoardFetcher reliability. Additionally, CI/CD tooling enhancements introduced pre-commit checks and GitHub Actions workflow to automate frontend tests, improving code quality and release confidence. These deliverables improve data accuracy, user experience, and developer productivity, enabling faster, more reliable insights from heatmaps and server maps.
May 2025
14 Commits • 4 Features
May 1, 2025May 2025 highlights across pinpoint-apm/pinpoint: Delivered impactful Heatmap and Server Map improvements, fixed data integrity edge cases, and hardened developer workflows. Key features delivered include Heatmap Visualization Enhancements with Apdex display, HelpPopover, and export reliability; Server Map Data Model Refactor standardizing Agent interface and consolidating filtering metadata; Server Map UX Enhancements adding chart tooltips and default heatmap view. Major bug fixes covered Time Series Data Integrity Fixes addressing histogram merge edge cases and ServerChartsBoardFetcher reliability. Additionally, CI/CD tooling enhancements introduced pre-commit checks and GitHub Actions workflow to automate frontend tests, improving code quality and release confidence. These deliverables improve data accuracy, user experience, and developer productivity, enabling faster, more reliable insights from heatmaps and server maps.
April 2025
31 Commits • 9 Features
Apr 1, 2025In April 2025, the Pinpoint project delivered a set of Heatmap and server map improvements that enhanced analytics visibility, reliability, and developer productivity. The work focused on delivering robust data visualization features, cleaner UI, and strengthened testing coverage to support faster issue resolution and safer releases.
31 Commits • 9 Features
Apr 1, 2025In April 2025, the Pinpoint project delivered a set of Heatmap and server map improvements that enhanced analytics visibility, reliability, and developer productivity. The work focused on delivering robust data visualization features, cleaner UI, and strengthened testing coverage to support faster issue resolution and safer releases.
April 2025
March 2025
11 Commits • 7 Features
Mar 1, 2025March 2025 highlights for pinpoint: Delivered key features that improve correctness, visibility, and flexibility, while enhancing usability and stability. Key features delivered: 1) TransactionInfo: standardized URI display and renamed fields (applicationId -> applicationName) for UI correctness and analytics consistency; 2) Heatmap visualization for module usage using ECharts with tooltips and filtering; 3) Dynamic date range configuration: configurable max range and interval propagated via withInitialFetch HOC for flexible data ranges. Major UX polish: AgentSearchList styling, smaller resizable panels, and hover tooltips for agentName/agentId. Major bug fix: transactionDetail page global search initialization to prevent errors. Overall impact: reduces duplication and maintenance costs, accelerates data-driven decision making, and improves user experience. Technologies demonstrated: React UI, ECharts integration, dynamic configuration patterns, and targeted refactors for reuse; Cytoscape maintenance for stability.
March 2025
11 Commits • 7 Features
Mar 1, 2025March 2025 highlights for pinpoint: Delivered key features that improve correctness, visibility, and flexibility, while enhancing usability and stability. Key features delivered: 1) TransactionInfo: standardized URI display and renamed fields (applicationId -> applicationName) for UI correctness and analytics consistency; 2) Heatmap visualization for module usage using ECharts with tooltips and filtering; 3) Dynamic date range configuration: configurable max range and interval propagated via withInitialFetch HOC for flexible data ranges. Major UX polish: AgentSearchList styling, smaller resizable panels, and hover tooltips for agentName/agentId. Major bug fix: transactionDetail page global search initialization to prevent errors. Overall impact: reduces duplication and maintenance costs, accelerates data-driven decision making, and improves user experience. Technologies demonstrated: React UI, ECharts integration, dynamic configuration patterns, and targeted refactors for reuse; Cytoscape maintenance for stability.
February 2025
17 Commits • 3 Features
Feb 1, 2025February 2025 (pinpoint repository) delivered significant real-time analytics UX improvements, OpenTelemetry metric dashboard enhancements, and foundational infrastructure/tooling upgrades that collectively improve data visibility, stability, and developer velocity. The work focused on delivering business value through actionable real-time insights, robust UI behavior, and faster, more stable builds.
17 Commits • 3 Features
Feb 1, 2025February 2025 (pinpoint repository) delivered significant real-time analytics UX improvements, OpenTelemetry metric dashboard enhancements, and foundational infrastructure/tooling upgrades that collectively improve data visibility, stability, and developer velocity. The work focused on delivering business value through actionable real-time insights, robust UI behavior, and faster, more stable builds.
February 2025
January 2025
12 Commits • 7 Features
Jan 1, 2025January 2025 (2025-01) monthly summary for pinpoint-apm/pinpoint: Focused on reducing maintenance burden, elevating observability, and delivering user-facing UI enhancements. Delivered platform cleanup, UI improvements, and advanced visualizations to enable faster insight and more reliable operation in production.
January 2025
12 Commits • 7 Features
Jan 1, 2025January 2025 (2025-01) monthly summary for pinpoint-apm/pinpoint: Focused on reducing maintenance burden, elevating observability, and delivering user-facing UI enhancements. Delivered platform cleanup, UI improvements, and advanced visualizations to enable faster insight and more reliable operation in production.
December 2024
10 Commits • 5 Features
Dec 1, 2024December 2024 highlights across pinpoint-apm/pinpoint focused on performance, UX, and maintainability: lazy loading of OpenTelemetry metrics to fetch and render only when visible, improved data visualization with enhanced drag interactions, admin workflow refinements, FlameGraph zoom capabilities, and a major codebase refactor moving internal packages into the UI path to simplify imports and prepare a unified metrics rendering pipeline. These changes reduce unnecessary API calls, enhance user experience for dashboards and performance analysis, and lay the groundwork for a cohesive metrics rendering system across the project.
10 Commits • 5 Features
Dec 1, 2024December 2024 highlights across pinpoint-apm/pinpoint focused on performance, UX, and maintainability: lazy loading of OpenTelemetry metrics to fetch and render only when visible, improved data visualization with enhanced drag interactions, admin workflow refinements, FlameGraph zoom capabilities, and a major codebase refactor moving internal packages into the UI path to simplify imports and prepare a unified metrics rendering pipeline. These changes reduce unnecessary API calls, enhance user experience for dashboards and performance analysis, and lay the groundwork for a cohesive metrics rendering system across the project.
December 2024
November 2024
17 Commits • 4 Features
Nov 1, 2024November 2024 highlights for pinpoint: delivered a major OpenTelemetry Metrics UI modernization with a reusable charting component, dedicated route, and branding updates; launched Agent Management in configuration with new admin UI and API hooks for managing agents (view/delete); completed User Management UI/API consolidation to streamline admin workflows; and implemented targeted UI/UX enhancements including a chart library upgrade and stability fixes. These efforts improved observability insights, admin efficiency, and system consistency, delivering tangible business value.
November 2024
17 Commits • 4 Features
Nov 1, 2024November 2024 highlights for pinpoint: delivered a major OpenTelemetry Metrics UI modernization with a reusable charting component, dedicated route, and branding updates; launched Agent Management in configuration with new admin UI and API hooks for managing agents (view/delete); completed User Management UI/API consolidation to streamline admin workflows; and implemented targeted UI/UX enhancements including a chart library upgrade and stability fixes. These efforts improved observability insights, admin efficiency, and system consistency, delivering tangible business value.
Activity
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Quality Metrics
Correctness90.4%
Maintainability88.4%
Architecture86.0%
Performance84.0%
AI Usage21.6%
Skills & Technologies
Programming Languages
CSSHTMLImageJSONJavaScriptMarkdownReactSCSSShellTypeScript
Technical Skills
API DevelopmentAPI IntegrationAPI developmentAPI integrationAccessibilityAngularAsset ManagementBuild Tool ConfigurationBuild ToolsCI/CDCanvas APIChart IntegrationChart LibrariesChart VisualizationChart.js
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline