131 lines
4.4 KiB
Markdown
131 lines
4.4 KiB
Markdown
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# Error Boundary Usage Audit
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**Date**: 2026-01-11
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**Action**: 3.3.1.1 - Audit existing ErrorBoundary usage
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**Status**: ✅ Complete
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## Summary
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This document audits the current usage of ErrorBoundary components across the application to identify coverage gaps and areas for improvement.
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## ErrorBoundary Components Found
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### 1. Main ErrorBoundary Component
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**File**: `apps/web/src/components/ErrorBoundary.tsx`
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- **Type**: Class component extending React.Component
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- **Features**:
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- Logs errors to structured logger
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- Sends errors to Sentry
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- Custom fallback UI support
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- Reset functionality
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- Dev mode error details display
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- **Current Usage**: Wraps entire app in `App.tsx` (line 122)
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### 2. PlaylistErrorBoundary Component
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**File**: `apps/web/src/features/playlists/components/PlaylistErrorBoundary.tsx`
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- **Type**: Class component extending React.Component
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- **Features**:
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- Specialized for playlist components
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- Uses ErrorDisplay component for fallback UI (already updated per Action 3.1.1.10)
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- Reset functionality
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- Custom fallback support
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- **Current Usage**: Wraps playlist-specific components
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### 3. LazyErrorBoundary Component
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**File**: `apps/web/src/components/ui/LazyComponent.tsx`
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- **Type**: Class component extending React.Component
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- **Features**:
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- Specialized for lazy-loaded components
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- Custom fallback UI (LazyErrorFallback)
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- Retry functionality
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- **Current Usage**: Wraps lazy-loaded page components
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## Current Coverage
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### ✅ Covered Areas
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1. **App-Level Coverage**
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- `App.tsx` wraps entire application with `ErrorBoundary`
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- Catches all unhandled React errors at the top level
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2. **Playlist Components**
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- `PlaylistErrorBoundary` wraps playlist-specific components
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- Provides specialized error handling for playlist operations
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3. **Lazy-Loaded Components**
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- `LazyErrorBoundary` wraps lazy-loaded page components
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- Handles code-splitting errors
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### ❌ Gaps Identified
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1. **Route-Level Coverage**
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- **Issue**: No ErrorBoundary wrapping individual routes
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- **Impact**: If one route crashes, entire app may become unusable
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- **Recommendation**: Wrap each route with ErrorBoundary (Action 3.3.1.2)
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2. **Feature-Level Coverage**
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- **Issue**: Only playlists have feature-specific error boundary
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- **Impact**: Other features (tracks, library, marketplace, chat) lack isolated error handling
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- **Recommendation**: Consider feature-specific boundaries for critical features
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3. **Component-Level Coverage**
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- **Issue**: No boundaries around individual components that might fail
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- **Impact**: Component failures can propagate up to route/app level
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- **Recommendation**: Add boundaries for complex components (modals, forms, data-heavy components)
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## Router Structure
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**File**: `apps/web/src/router/index.tsx`
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- Uses React Router for routing
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- Routes are defined but not individually wrapped with ErrorBoundary
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- All routes are currently protected by app-level ErrorBoundary only
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## Recommendations
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### High Priority
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1. **Wrap Individual Routes** (Action 3.3.1.2)
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- Add ErrorBoundary to each route definition
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- Prevents one route crash from affecting entire app
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- Allows route-specific error recovery
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2. **Update ErrorBoundary UI** (Action 3.3.1.3)
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- Replace custom fallback UI with ErrorDisplay component
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- Provides consistent error presentation
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- Already done for PlaylistErrorBoundary
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### Medium Priority
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3. **Add Feature-Level Boundaries**
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- Consider boundaries for:
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- Track upload/management features
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- Marketplace features
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- Chat features
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- Library features
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4. **Component-Level Boundaries**
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- Add boundaries for:
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- Complex modals (UploadModal, ShareDialog)
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- Data-heavy components (LibraryPage, MarketplaceHome)
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- Forms with complex validation
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### Low Priority
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5. **Error Boundary Logging** (Action 3.3.1.4)
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- Enhance logging with more context
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- Add user action tracking
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- Improve error correlation
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## Files Requiring Updates
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1. `apps/web/src/router/index.tsx` - Add ErrorBoundary to routes
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2. `apps/web/src/components/ErrorBoundary.tsx` - Update to use ErrorDisplay (Action 3.3.1.3)
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3. Feature components - Consider adding feature-specific boundaries
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## Next Steps
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1. ✅ Complete: Audit existing ErrorBoundary usage
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2. ⏭️ Next: Wrap all routes in ErrorBoundary (Action 3.3.1.2)
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3. ⏭️ Next: Update ErrorBoundary to use ErrorDisplay (Action 3.3.1.3)
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4. ⏭️ Next: Add error boundary logging (Action 3.3.1.4)
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