can you give me a simple example using unstable_cache?
#unstable_cache
bronze palm
swift kernelBOT
Hi @bronze palm. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave:
Sure, here is a simple example of using unstable_cache in Next.js:
import { unstable_cache } from 'next/cache'
export default async function Page() {
const cachedData = await unstable_cache(
async () => {
const data = await db.query('...')
return data
},
['cache-key'],
{
tags: ['a', 'b', 'c'],
revalidate: 10,
}
)()
}
In this example, unstable_cache is used to cache the result of a database query. The unstable_cache function takes three arguments:
- An async function that fetches the data to be cached.
- An array of cache keys.
- An options object, which can include tags for fine-grained cache control and a
revalidateoption to specify the time (in seconds) after which the cache should be revalidated.
Please note that unstable_cache is an experimental API and is currently being developed. It is not recommended to use it in production.
Source: Next.js Documentation (https://nextjs.org/docs/app/building-your-application/caching)
Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
bronze palm
@swift kernel how do i retrieve data again using the cache key?
swift kernelBOT
Let me check the knowledge base for you. One moment! :books:
To retrieve data from the cache in Next.js, you would typically use the same function that you used to store the data. The function would first check if the data is in the cache using the provided cache key. If the data is found, it is returned from the cache. If not, the function fetches the data, stores it in the cache, and then returns it.
However, the provided extracts do not contain a specific example of retrieving data from the cache using a cache key. The unstable_cache function is used to add values to the cache, but it's not clear from the extracts how to retrieve these values again.
For more detailed information on how to work with the cache in Next.js, you may want to refer to the Next.js Documentation (https://nextjs.org/docs/app/building-your-application/caching).
Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
bronze palm
@swift kernel how would i get the data from the cache in another page?
swift kernelBOT
Let me check the knowledge base for you. One moment! :books:
The provided extracts do not contain specific information on how to retrieve data from the cache in another page using Next.js. The unstable_cache function is used to add values to the cache, but it's not clear from the extracts how to retrieve these values again.
However, in general, the caching in Next.js is designed to improve your application's performance by caching rendering work and data requests. The data cache persists the result of data fetches across incoming server requests and deployments. When a fetch request is called during rendering, Next.js checks the Data Cache for a cached response. If a cached response is found, it's returned immediately and memoized. If a cached response is not found, the request is made to the data source, the result is stored in the Data Cache, and memoized.