Confusion about memory usage of cache

[yqz0203]

SWR is a great tool and I want to use it as a low-level data fetching api in my application. As far as I know, SWR will cache data per different key.

So I wonder if a lot of useSWR is used, eg. There are many product detail pages in an app, will it cause excessive memory usage?

[koba04]

I think it doesn't have to matter in most cases, but It depends on how much you save data into your cache-store. SWR provides a way to create a custom cache. So you can implement an LRU cache if you want.

https://swr.vercel.app/docs/advanced/cache

The following is a related PR for this.
#92

[yqz0203]

Great! Thanks.