React

Error Boundary and Fallback UI Generator

Name: Error Boundary and Fallback UI Generator
Author: Neura Editorial

Neura Editorial April 24, 2026

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Create React error boundaries with proper fallback UIs, error logging, and recovery mechanisms.

Prompt

Create an error boundary component for [area]. Requirements:
- Class component extending React.Component with componentDidCatch
- TypeScript with proper generic types for error and errorInfo
- Fallback UI with:
  - User-friendly error message (not raw stack traces)
  - "Try Again" button that resets the error state
  - Option to reload the page as last resort
  - Visual design matching the app's existing error/empty states
- Log errors to your error tracking service (Sentry, etc.)
- Include error context: component tree, user action, timestamp
- Create a useErrorBoundary hook for functional component error throwing
- Add a higher-order component (withErrorBoundary) wrapper
- Handle different error types with different fallbacks
- Don't catch errors in event handlers (those need try/catch)
- Reset error state when navigation changes (if using React Router)

How to Use

Specify the area of your app (page-level, component-level, form-level). Cursor generates the boundary, fallback UI, and HOC wrapper.

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