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createError

Create an error object with additional metadata.

You can use this function to create an error object with additional metadata. It is usable in both the Vue and Nitro portions of your app, and is meant to be thrown.

Parameters

  • err: { cause, data, message, name, stack, statusCode, statusMessage, fatal }

In Vue App

If you throw an error created with createError:

  • on server-side, it will trigger a full-screen error page which you can clear with clearError.
  • on client-side, it will throw a non-fatal error for you to handle. If you need to trigger a full-screen error page, then you can do this by setting fatal: true.

Example

pages/movies/[slug].vue
<script setup lang="ts">
const route = useRoute()
const { data } = await useFetch(`/api/movies/${route.params.slug}`)
if (!data.value) {
  throw createError({ statusCode: 404, statusMessage: 'Page Not Found' })
}
</script>

In API Routes

Use createError to trigger error handling in server API routes.

Example

export default eventHandler(() => {
  throw createError({
    statusCode: 404,
    statusMessage: 'Page Not Found'
  })
})
Read more in Docs > Getting Started > Error Handling.