All 5 Error Handling & Not Found Pages questions
More in Error Handling & Not Found Pages
How do you create a custom error page for a specific route segment in the App Router? How do you create a custom 404 not found page in Next.js? How would you manually trigger a not found response when a specific piece of data, like a product, does not exist? How does the global-error.js file differ from a regular error.js file in the App Router?
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Next.js › Error Handling & Not Found Pages

How would you set up a comprehensive error handling strategy across a large Next.js application with many route segments?

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Answer

You place error.js files at strategic points in your route structure, such as near features that are more likely to fail, use a shared error reporting service to log errors to a monitoring tool, provide clear and actionable messages for users, and include a global-error.js as a final safety net for anything that escapes the nested boundaries.
'use client';
import { useEffect } from 'react';
import { logErrorToService } from '@/lib/monitoring';

export default function Error({ error, reset }) {
  useEffect(() => {
    logErrorToService(error);
  }, [error]);
  return <button onClick={() => reset()}>Try again</button>;
}
Real-world example A large e-commerce platform places error boundaries around its checkout flow specifically, since that feature is business critical, while also logging every error to a monitoring service so the team is alerted quickly.

Common follow-ups: What monitoring tools are commonly used to track errors in production Next.js apps?;How do you avoid showing overly technical error details to end users?

Security Best Practices in Next.js;Testing Next.js Applications
All 5 Error Handling & Not Found Pages questions