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Nuxt•2d ago
Lewis

Is there a way to force clear cache while in production?

I use SWR and cache some routes, I wanted to make an extra route such as /api/clear that will clear all cached swr data (so everything it fresh data again)
2 Replies
kapa.ai
kapa.ai•2d ago
Hi @Lewis. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave: ---------------------- Yes, there are ways to force clear the cache in production for Nuxt applications. Based on the knowledge sources provided, here are a couple of approaches you can use: 1. Using clearNuxtData: You can create an API route that uses the clearNuxtData utility function to clear the cached data. This function is specifically designed to delete cached data, error status, and pending promises of useAsyncData and useFetch. Docs > Api > Utils > clearNuxtData provides the following information: 
   clearNuxtData(keys?: string | string[] | ((key: string) => boolean)): void
   
   clearNuxtData(keys?: string | string[] | ((key: string) => boolean)): void
You can implement this in your /api/clear route as follows: 
   export default defineEventHandler((event) => {
     clearNuxtData()
     return { message: 'Cache cleared successfully' }
   })
   
   export default defineEventHandler((event) => {
     clearNuxtData()
     return { message: 'Cache cleared successfully' }
   })
This will clear all cached data. If you want to clear specific keys, you can pass them as arguments to clearNuxtData. 2. Using refreshNuxtData: Alternatively, you can use the refreshNuxtData utility to refetch all data from the server and update the page. This will also invalidate the cache of useAsyncData, useLazyAsyncData, useFetch, and useLazyFetch. Docs > Api > Utils > refreshNuxtData provides the following information: 
   refreshNuxtData(keys?: string | string[])
   
   refreshNuxtData(keys?: string | string[])
You can implement this in your /api/clear route as follows: 
   export default defineEventHandler(async (event) => {
     await refreshNuxtData()
     return { message: 'Data refreshed and cache invalidated' }
   })
   
   export default defineEventHandler(async (event) => {
     await refreshNuxtData()
     return { message: 'Data refreshed and cache invalidated' }
   })
Remember that these functions are meant to be used on the client side. If you're calling this API route from the client, you'll need to trigger the cache clearing or refreshing after the API call completes. It's important to note that clearing the cache in production should be done cautiously, as it can impact performance and user experience. Make sure to implement appropriate security measures to prevent unauthorized cache clearing. Getting Started > Data Fetching provides more context on caching and refetching in Nuxt applications. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------
kapa.ai
kapa.ai•2d ago
<@304249277096525824> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

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