How to Handle Errors in Next.js 15?

Nextjs 15

How to Handle Errors in Next.js 15?

Learning Error Handling in Next.js 15: Not found, forbidden, unauthorized, error, and global error.

Error handling in nextjs 15 is a very easy process, and you do not need to write any extra configuration.

Errors can be divided into two categories in Next.js:

1. Expected Errors
2. Uncaught exceptions (Unexpected errors)

Expected Errors

Expected errors are expected to happen under normal operations or circumstances, such as server-side form validation, failed requests, etc.

Expected errors should be handled explicitly and returned to the client.

Uncaught Exceptions (Unexpected Errors)

Unexpected errors indicate bugs or issues that should not occur during the normal operation of your application.

Unexpected errors should be handled by throwing errors, which error boundaries will then catch.

All the code is available on GitHub; you can run the demo Next.js application to understand working behind the nextjs error handling.