Update Notifications · Nuxt Skew Protection · Nuxt SEO

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Search…```k`` /`

v1.1.1

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### Getting Started

- [Introduction](https://nuxtseo.com/docs/skew-protection/getting-started/introduction)
- [Installation](https://nuxtseo.com/docs/skew-protection/getting-started/installation)

### Core Concepts

- [Check for Update Strategy](https://nuxtseo.com/docs/skew-protection/guides/update-strategies)
- [Update Notifications](https://nuxtseo.com/docs/skew-protection/guides/immediate-updates)
- [Performance](https://nuxtseo.com/docs/skew-protection/guides/performance)
- [Persistent Storage](https://nuxtseo.com/docs/skew-protection/guides/storage-configuration)
- [Notification UI](https://nuxtseo.com/docs/skew-protection/guides/ui-examples)
- [Cookie Consent](https://nuxtseo.com/docs/skew-protection/guides/cookie-consent)
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### Providers

- [External Providers](https://nuxtseo.com/docs/skew-protection/providers/external)
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Core Concepts

# Update Notifications

[Copy for LLMs](https://nuxtseo.com/docs/skew-protection/guides/immediate-updates.md)

Using the [update strategies](https://nuxtseo.com/docs/skew-protection/guides/update-strategies) the module knows when you deploy a new version. You can use the built-in [`<SkewNotification>`](https://nuxtseo.com/docs/skew-protection/api/skew-notification) component or build your own using the [`useSkewProtection()`](https://nuxtseo.com/docs/skew-protection/api/use-skew-protection) composable.

Update notifications can be an annoying user experience if not handled properly. The module provides two hooks to differentiate between deployments:

- [`onAppOutdated()`](https://nuxtseo.com/docs/skew-protection/api/use-skew-protection#onappoutdated) - triggers whenever it detects a new version.
- [`onCurrentChunksOutdated()`](https://nuxtseo.com/docs/skew-protection/api/use-skew-protection#oncurrentchunksoutdated) - triggers only when the user's loaded chunks are invalidated by the new deployment.

## [Setting Up Notifications](#setting-up-notifications)

The `<SkewNotification>` component is a client-only wrapper around the `useSkewProtection()` composable.

When the user's current chunks are outdated:

app.vue

```
<template>
  <SkewNotification v-slot="{ isCurrentChunksOutdated }">
    <Transition name="slide-up">
      <div v-if="isCurrentChunksOutdated" class="fixed bottom-4 left-1/2 transform -translate-x-1/2 bg-blue-600 text-white px-4 py-2 rounded shadow">
        An update is available. Please refresh the page.
      </div>
    </Transition>
  </SkewNotification>
</template>
```

Please see the [UI Examples](https://nuxtseo.com/docs/skew-protection/guides/ui-examples) guide for more user friendly notification patterns.

## [Server-Side Skew Detection](#server-side-skew-detection)

Detect outdated clients in server handlers using [`isClientOutdated()`](https://nuxtseo.com/docs/skew-protection/nitro-api/is-client-outdated):

server/api/data.ts

```
import { isClientOutdated } from 'nuxt-skew-protection/server'

export default defineEventHandler((event) => {
  if (isClientOutdated(event)) {
    setResponseStatus(event, 409)
    return { error: 'Client outdated', requiresReload: true }
  }

  return { data: '...' }
})
```

[Edit this page](https://github.com/nuxt-seo-pro/nuxt-skew-protection/edit/main/docs/content/2.guides/1.immediate-updates.md)

[Markdown For LLMs](https://nuxtseo.com/docs/skew-protection/guides/immediate-updates.md)

Did this page help you?

[Check for Update Strategy Choose the best update detection strategy for your platform.](https://nuxtseo.com/docs/skew-protection/guides/update-strategies) [Performance Optimize skew protection for high-traffic applications.](https://nuxtseo.com/docs/skew-protection/guides/performance)

On this page

- [Setting Up Notifications](#setting-up-notifications)
- [Server-Side Skew Detection](#server-side-skew-detection)

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