catchError

The catchError function creates a component that wraps its children in an error boundary. It provides a programmatic alternative to writing a custom React error boundary class, enabling component-level error recovery anywhere in your component tree.

Compared to a custom React error boundary, catchError is designed to work with Next.js out of the box:

• Built-in error recovery — reset() re-renders the error boundary's children, letting users recover from errors without a full page reload.
• Client navigation handling — The error state automatically clears when you do a client navigation to a different route.

import { catchError, type ErrorInfo } from 'next/error'
 
function ErrorFallback(props: { title: string }, { error, reset }: ErrorInfo) {
  return (
    <div>
      <h2>{props.title}</h2>
      <p>{error.message}</p>
      <button onClick={() => reset()}>Try again</button>
    </div>
  )
}
 
export default catchError(ErrorFallback)

Reference

Parameters

catchError accepts a single argument:

const ErrorWrapper = catchError(fallback)

fallback

A function that renders the error UI when an error is caught. It receives two arguments:

• props — The props passed to the wrapper component (excluding children).
• errorInfo — An object containing information about the error:

Returns

catchError returns a React component that:

• Accepts the same props as your fallback's first argument, plus children.
• Wraps children in an error boundary.
• Renders the fallback when an error is caught in children.

Examples

Basic usage

Define a fallback and use the returned component to wrap parts of your UI:

import ErrorWrapper from './custom-error-boundary'
 
export default function Component({ children }: { children: React.ReactNode }) {
  return <ErrorWrapper title="Dashboard Error">{children}</ErrorWrapper>
}

Recovering from errors

Use reset() to prompt the user to recover from the error. When called, the function clears the error state and re-renders the error boundary's children.

import { catchError, type ErrorInfo } from 'next/error'
 
function ErrorFallback(props: {}, { error, reset }: ErrorInfo) {
  return (
    <div>
      <p>{error.message}</p>
      <button onClick={() => reset()}>Try again</button>
    </div>
  )
}
 
export default catchError(ErrorFallback)

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