Question 1

How to log errors with react-error-boundary to services like Sentry?

Accepted Answer

Use the onError prop to capture error details and component stack traces, then pass them to Sentry's API. This integrates error monitoring without cluttering your component logic, as shown in the optional props.

Question 2

What's the difference between fallback and fallbackRender in react-error-boundary?

Accepted Answer

fallback is a static element for simple UIs, while fallbackRender is a function that receives error and resetErrorBoundary parameters for dynamic control. The README explains this with code examples for flexibility.

Question 3

Can react-error-boundary catch errors in useEffect or async functions?

Accepted Answer

No, it only catches errors during rendering; errors in useEffect, event handlers, or async code require separate handling with try-catch. This limitation is explicitly stated in the README's constraints.

Question 4

react-error-boundary vs custom error boundary class: which should I use?

Accepted Answer

react-error-boundary reduces boilerplate with built-in features like resetKeys and logging, while custom classes offer more control. For most apps, this library is faster to implement and maintain.

Question 5

How to automatically reset an error boundary when a form resets?

Accepted Answer

Pass the form state or key as resetKeys; when it changes, the boundary resets and retries rendering. This is useful for recovery after user interactions, as described in the resetKeys prop documentation.

Question 6

Is react-error-boundary compatible with Next.js app router?

Accepted Answer

Yes, but only in client components due to its 'use client' requirement; errors in server components won't be caught. You'll need to wrap it appropriately in client-side parts of your app.

react-error-boundary

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