yorkie-team/yorkie-js-sdk
Feb 2025 – Oct 2025
4 Months active
Languages Used
TypeScriptprotobufCSSHTMLJavaScriptShell
Technical Skills
API DesignData TrackingSDK DevelopmentBackend DevelopmentDockerError Handling
emplam27
PROFILE
Emplam27
Yonguk K worked on the yorkie-team/yorkie-js-sdk repository, delivering features and fixes that enhanced real-time collaboration and data consistency. Over four months, he implemented MAU analytics tracking by extending the ActivateClientRequest protocol and TypeScript client, enabling richer activation metrics. He improved connection resilience and user experience in React and Vanilla JS by adding keepalive options, automatic reconnects, and real-time connection status hooks. Yonguk also aligned array operation semantics with the Go SDK, ensuring cross-language CRDT consistency, and introduced Last-Write-Wins conflict resolution for concurrent deletions. His work leveraged TypeScript, JavaScript, and CRDT principles to address distributed systems challenges.
Overall Statistics
Feature vs Bugs
88%Features
Repository Contributions
10Total
Bugs
1
Commits
10
Features
7
Lines of code
4,082
Activity Months4
Your Network
37 people
Work History
October 2025
2 Commits • 1 Features
Oct 1, 2025October 2025: Delivered CRDT deletion consistency with Last-Write-Wins (LWW) in RGATreeSplit for yorkie-js-sdk, enabling correct conflict resolution for concurrent deletions across distributed clients. Implemented robust tombstone handling and improved overlapping deletion logic. Fixed removedAt timestamp handling for text deletions and tree deletions to ensure data integrity. These changes strengthen cross-client synchronization, reduce reconciliation errors, and enhance real-time collaboration reliability.
2 Commits • 1 Features
Oct 1, 2025October 2025: Delivered CRDT deletion consistency with Last-Write-Wins (LWW) in RGATreeSplit for yorkie-js-sdk, enabling correct conflict resolution for concurrent deletions across distributed clients. Implemented robust tombstone handling and improved overlapping deletion logic. Fixed removedAt timestamp handling for text deletions and tree deletions to ensure data integrity. These changes strengthen cross-client synchronization, reduce reconciliation errors, and enhance real-time collaboration reliability.
October 2025
August 2025
1 Commits
Aug 1, 2025August 2025: Focused on stabilizing array operation semantics by aligning Array.Move and Array.Set with the Go SDK, fixing Element.Remove condition to prevent divergence and ensure consistent behavior across operations. This work enhances cross-language data consistency, reduces edge-case bugs, and improves reliability for developers integrating yorkie-js-sdk across platforms.
August 2025
1 Commits
Aug 1, 2025August 2025: Focused on stabilizing array operation semantics by aligning Array.Move and Array.Set with the Go SDK, fixing Element.Remove condition to prevent divergence and ensure consistent behavior across operations. This work enhances cross-language data consistency, reduces edge-case bugs, and improves reliability for developers integrating yorkie-js-sdk across platforms.
March 2025
6 Commits • 5 Features
Mar 1, 2025March 2025—Yorkie JS SDK delivered a focused set of reliability, UX, and developer experience improvements. Key features include improved connection resilience during page unloads, automatic recovery on subscription and attachment edge cases, real-time connection status exposure in React Binder, and practical usage examples for document limits that aid adoption and correct usage.
6 Commits • 5 Features
Mar 1, 2025March 2025—Yorkie JS SDK delivered a focused set of reliability, UX, and developer experience improvements. Key features include improved connection resilience during page unloads, automatic recovery on subscription and attachment edge cases, real-time connection status exposure in React Binder, and practical usage examples for document limits that aid adoption and correct usage.
March 2025
February 2025
1 Commits • 1 Features
Feb 1, 2025February 2025 summary for yorkie-js-sdk focused on instrumentation and analytics enhancements to support MAU data collection during client activation. Implemented MAU analytics metadata by extending the ActivateClientRequest proto and adding a TypeScript implementation; updated the Client to store and pass the MAU metadata during activation, enabling richer analytics and more accurate activation funnel metrics. Impact and value: Provides a foundation for MAU tracking across activation, improving analytics fidelity, enabling data-driven product decisions, and supporting future analytics integrations. Notes: No major bugs fixed this month; primary effort concentrated on instrumentation and cross-language metadata propagation.
February 2025
1 Commits • 1 Features
Feb 1, 2025February 2025 summary for yorkie-js-sdk focused on instrumentation and analytics enhancements to support MAU data collection during client activation. Implemented MAU analytics metadata by extending the ActivateClientRequest proto and adding a TypeScript implementation; updated the Client to store and pass the MAU metadata during activation, enabling richer analytics and more accurate activation funnel metrics. Impact and value: Provides a foundation for MAU tracking across activation, improving analytics fidelity, enabling data-driven product decisions, and supporting future analytics integrations. Notes: No major bugs fixed this month; primary effort concentrated on instrumentation and cross-language metadata propagation.
Activity
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Quality Metrics
Correctness95.0%
Maintainability90.0%
Architecture92.0%
Performance88.0%
AI Usage24.0%
Skills & Technologies
Programming Languages
CSSHTMLJavaScriptShellTypeScriptprotobuf
Technical Skills
API DesignAlgorithm OptimizationBackend DevelopmentCRDTConcurrency ControlData StructuresData TrackingDistributed SystemsDockerError HandlingExample ImplementationFront-end DevelopmentFrontend DevelopmentJavaScriptReact
Repositories Contributed To
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