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Refreshing Data in a Nuxt Application with refreshNuxtData

Popularity：819 ℃/2024-08-21 16:43:39

title: Refreshing Data in a Nuxt Application with refreshNuxtData
date: 2024/8/21
updated: 2024/8/21
author: cmdragon

excerpt:
refreshNuxtData is a very useful function in Nuxt 3 to help you refresh the page after a data update. By knowing how to refresh all data and refresh specific data, you can have more flexibility in controlling when and how data is updated.

categories:

  • front-end development

tags:

  • Nuxt3
  • Data Refresh
  • Page Updates
  • cache failure
  • useAsyncData
  • useFetch
  • manual refresh

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In Nuxt 3 applications, there may be times when you need to manually refresh the data, especially if the data has been updated and you want the interface to reflect the changes in real time.refreshNuxtData Functions can help you do this.

What is it?refreshNuxtData？

refreshNuxtData is a Nuxt 3-provided function to re-fetch data from the server and update the page. It will make theuseAsyncData、useLazyAsyncData、useFetch respond in singinguseLazyFetch of the cache is invalidated. Using this function, you can choose to refresh all data or only specific data.

function signature

refreshNuxtData(keys?: string | string[]): Promise<void>
  • keys(Optional): Specifies the key of the data to be refreshed, which can be a string or an array of strings. If you do not specifykeys, all data will be reacquired.

usage example

Refresh all data

Sometimes you may need to refresh all the data on the page. This can be done by not passing thekeys parameter to realize it.

Sample code:

existpages/ file, we will add a button that when clicked will refresh all the data on the current page:

<template>
  <div>
    <button :disabled="refreshing" @click="refreshAll">
      Retrieve all data
    </button>
  </div>
</template>

<script setup lang="ts">

const refreshing = ref(false)

const refreshAll = async () => {
   = true
  try {
    await refreshNuxtData()
  } finally {
     = false
  }
}
</script>

In the code above:

  • refreshing is a responsive variable used to control the disabled state of the button.
  • refreshAll function will call therefreshNuxtData to refresh all data and restore the button state when finished.

Refresh specific data

Sometimes you only need to refresh some specific data. For example, when a data item changes, you may want to refresh only that particular data item.

Sample code:

existpages/ file, we will demonstrate how to refresh specific data:

<template>
  <div>
    {{ pending ? 'loading' : count }}
    <button @click="refresh">refresh (computer window)</button>
  </div>
</template>

<script setup lang="ts">

const { pending, data: count } = await useLazyAsyncData('count', () => $fetch('/api/count'))

const refresh = () => {
  refreshNuxtData('count')
}
</script>

In the code above:

  • useLazyAsyncData is used to get the name of thecount The data.
  • refresh function will call therefreshNuxtData and pass into'count' as a parameter to refresh a specific data item.

summarize

refreshNuxtData is a very useful function in Nuxt 3 to help you refresh the page after a data update. By knowing how to refresh all data and refresh specific data, you can have more flexibility in controlling when and how data is updated.

For the rest of the article, please click to jump to the personal blog page or scan the code to follow or WeChat search:Programming Intelligence Front-End to Full-Stack Communication and Growth, read the full article:Refresh the data in the Nuxt application with refreshNuxtData | cmdragon's Blog

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