instructure/canvas-lms
Apr 2025 – Oct 2025
5 Months active
Languages Used
JavaScriptRubySQLTypeScriptHTMLYAMLJSX
Technical Skills
API InteractionBackend DevelopmentBackend IntegrationDatabase ManagementFrontend DevelopmentJavaScript
Jacob DeWar
PROFILE
Jacob Dewar
Jacob Dewar contributed to the instructure/canvas-lms repository by delivering features and fixes that improved accessibility, data integrity, and user experience across both frontend and backend systems. He implemented Unicode-aware file sorting, enforced folder name validation, and enhanced access control for attachments, using technologies such as TypeScript, React, and Ruby on Rails. Jacob addressed cross-shard file navigation and timezone rendering issues, refactored ID handling to prevent data anomalies, and introduced property-based testing with Jest. His work demonstrated depth in debugging, test automation, and feature flag management, resulting in a more reliable, maintainable, and inclusive platform for end users and developers.
Overall Statistics
Feature vs Bugs
58%Features
Repository Contributions
21Total
Bugs
8
Commits
21
Features
11
Lines of code
2,976
Activity Months5
Your Network
352 peopleSame Organization
@instructure.com184
Ahmed NaguibMember
Ádám MátéMember
Adam_MikulasMember
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Shared Repositories
168
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Adam_MikulasMember
Adam MolnarMember
Adam SzaboMember
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akemenyMember
Akos HorvathMember
Alexandre DosSantosMember
alvaro.talaveraMember
Work History
October 2025
5 Commits • 4 Features
Oct 1, 20252025-10 monthly summary for instructure/canvas-lms: Delivered a focused set of accessibility improvements, UX refinements, and testing infrastructure to boost inclusivity, UI reliability, and code quality. Close alignment with product goals reduced friction for users and developers, enabling safer deployments and faster iteration. Key deliverables include decorative alt text for MediaRecording images to improve screen reader experience; focus management fix for the Configure External Tool dialog to enhance keyboard navigation; expansion of the submission attempts list to 100 with GraphQL updates and tests; refinement of multi-type submission warning and drafting detection to reduce student confusion; and introduction of fast-check property testing library with Jest setup to boost test coverage and reliability. These changes deliver tangible business value by improving accessibility, user experience, and confidence in deployments.
5 Commits • 4 Features
Oct 1, 20252025-10 monthly summary for instructure/canvas-lms: Delivered a focused set of accessibility improvements, UX refinements, and testing infrastructure to boost inclusivity, UI reliability, and code quality. Close alignment with product goals reduced friction for users and developers, enabling safer deployments and faster iteration. Key deliverables include decorative alt text for MediaRecording images to improve screen reader experience; focus management fix for the Configure External Tool dialog to enhance keyboard navigation; expansion of the submission attempts list to 100 with GraphQL updates and tests; refinement of multi-type submission warning and drafting detection to reduce student confusion; and introduction of fast-check property testing library with Jest setup to boost test coverage and reliability. These changes deliver tangible business value by improving accessibility, user experience, and confidence in deployments.
October 2025
July 2025
3 Commits
Jul 1, 2025July 2025 performance summary for instructure/canvas-lms focused on reliability, correctness, and data integrity across a distributed system. Implemented correct local timezone rendering for To-Do Dates on wiki pages, with automated test coverage and frontend rendering updates to handle timezone conversions and fix a race condition causing intermittent display errors. Stabilized cross-shard file access navigation by ensuring the proper shard context is activated during root folder retrieval/indexing, improving consistency of file access across shards. Refactored IDs in files_v2 to use strings instead of numbers to prevent precision loss for large IDs, ensuring consistent string-based ID handling across components and APIs. These changes reduce user-visible errors, prevent data anomalies in large datasets, and enhance overall reliability for distributed workflows.
July 2025
3 Commits
Jul 1, 2025July 2025 performance summary for instructure/canvas-lms focused on reliability, correctness, and data integrity across a distributed system. Implemented correct local timezone rendering for To-Do Dates on wiki pages, with automated test coverage and frontend rendering updates to handle timezone conversions and fix a race condition causing intermittent display errors. Stabilized cross-shard file access navigation by ensuring the proper shard context is activated during root folder retrieval/indexing, improving consistency of file access across shards. Refactored IDs in files_v2 to use strings instead of numbers to prevent precision loss for large IDs, ensuring consistent string-based ID handling across components and APIs. These changes reduce user-visible errors, prevent data anomalies in large datasets, and enhance overall reliability for distributed workflows.
June 2025
2 Commits • 2 Features
Jun 1, 2025June 2025 monthly summary for instructure/canvas-lms: Delivered two key features with strong test coverage, enhanced access control robustness and UI consistency, and expanded test suites to reduce risk in ID handling and editor-dependent UI. Overall impact includes improved security, better user experience, and a more maintainable codebase.
2 Commits • 2 Features
Jun 1, 2025June 2025 monthly summary for instructure/canvas-lms: Delivered two key features with strong test coverage, enhanced access control robustness and UI consistency, and expanded test suites to reduce risk in ID handling and editor-dependent UI. Overall impact includes improved security, better user experience, and a more maintainable codebase.
June 2025
May 2025
8 Commits • 4 Features
May 1, 2025May 2025 monthly summary for instructure/canvas-lms: Focused on improving accessibility, UX reliability, and security within the Files component, while maintaining strong build/test stability. What delivered: - Folder name length validation: Enforced a 255-character limit for folder and file names across create/rename, reducing invalid inputs and support overhead. - Accessibility improvements for file/folder tables: Added screen-reader-friendly header labels and fixed an extra-row reporting issue by conditional rendering of the upload row, enhancing assistive tech compatibility. - Files UI accessibility rewrite toggle: Introduced feature flag 'files_a11y_rewrite_toogle' to control visibility of a UI version toggle, enabling controlled rollout of the accessibility rewrite. - Data freshness during uploads: Deferred file list and quota refetch until all uploads complete, improving accuracy and reducing unnecessary fetches. - Safe Files Token for iframe loading: Implemented a token mechanism to securely grant iframe access to inline HTML when enabled, addressing Safari cross-site restrictions. Impact and value: - Improves user accessibility and inclusivity, reduces support incidents related to file naming, and enables safer, more reliable iframe content in Safari. - Provides controlled rollout capabilities for UI changes via feature flags, aligning with safer deployment practices. - Strengthens CI stability considerations through targeted fixes in the month, contributing to more reliable release cycles.
May 2025
8 Commits • 4 Features
May 1, 2025May 2025 monthly summary for instructure/canvas-lms: Focused on improving accessibility, UX reliability, and security within the Files component, while maintaining strong build/test stability. What delivered: - Folder name length validation: Enforced a 255-character limit for folder and file names across create/rename, reducing invalid inputs and support overhead. - Accessibility improvements for file/folder tables: Added screen-reader-friendly header labels and fixed an extra-row reporting issue by conditional rendering of the upload row, enhancing assistive tech compatibility. - Files UI accessibility rewrite toggle: Introduced feature flag 'files_a11y_rewrite_toogle' to control visibility of a UI version toggle, enabling controlled rollout of the accessibility rewrite. - Data freshness during uploads: Deferred file list and quota refetch until all uploads complete, improving accuracy and reducing unnecessary fetches. - Safe Files Token for iframe loading: Implemented a token mechanism to securely grant iframe access to inline HTML when enabled, addressing Safari cross-site restrictions. Impact and value: - Improves user accessibility and inclusivity, reduces support incidents related to file naming, and enables safer, more reliable iframe content in Safari. - Provides controlled rollout capabilities for UI changes via feature flags, aligning with safer deployment practices. - Strengthens CI stability considerations through targeted fixes in the month, contributing to more reliable release cycles.
April 2025
3 Commits • 1 Features
Apr 1, 2025April 2025 — In instructure/canvas-lms, delivered critical fixes and reliability improvements across core data handling and testing. Key features delivered and bugs fixed include: 1) Unicode-aware file name sorting by applying Unicode collation keys to ensure consistent sorting across databases; 2) Restored numeric IDs for files and folders in API responses by migrating from UUIDs and updating tests/utilities; 3) Hardening test infrastructure for files_v2 by centralizing environment management via filesEnvUtils and removing direct mutation of test state. Overall impact: improved data correctness, API stability, and test reliability, enabling safer releases and faster iterations. Technologies demonstrated: Unicode collation handling, database- and API-level data migrations, and test infrastructure engineering with environments utilities.
3 Commits • 1 Features
Apr 1, 2025April 2025 — In instructure/canvas-lms, delivered critical fixes and reliability improvements across core data handling and testing. Key features delivered and bugs fixed include: 1) Unicode-aware file name sorting by applying Unicode collation keys to ensure consistent sorting across databases; 2) Restored numeric IDs for files and folders in API responses by migrating from UUIDs and updating tests/utilities; 3) Hardening test infrastructure for files_v2 by centralizing environment management via filesEnvUtils and removing direct mutation of test state. Overall impact: improved data correctness, API stability, and test reliability, enabling safer releases and faster iterations. Technologies demonstrated: Unicode collation handling, database- and API-level data migrations, and test infrastructure engineering with environments utilities.
April 2025
Activity
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Quality Metrics
Correctness92.8%
Maintainability91.0%
Architecture85.8%
Performance85.2%
AI Usage20.0%
Skills & Technologies
Programming Languages
HTMLJSXJavaScriptRubySQLTypeScriptYAML
Technical Skills
API IntegrationAPI InteractionAccessibilityBackbone.jsBackend DevelopmentBackend IntegrationCI/CDConfiguration ManagementDatabase ManagementDebuggingFeature Flag ManagementFront End DevelopmentFrontend DevelopmentGraphQLHTML
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline