How to prevent SWR revalidating if key changed in SWR hook

[phatify]

I have issue when using useSWR/useSWRInfinite hook to fetch data. Specifically, there are 3 variables in key of swr hook that I get and it changes whenever.

For example:

const usePost = (profile_id, from_id = '') => {
    const PAGE_LIMIT = 5;
    let { data, size, setSize, error, mutate, isValidating } = useSWRInfinite(
        (pageIndex, previousPageData) => {
            const currentPageIndex = pageIndex + 1;
            return `/posts/profile/${profile_id}?page=${currentPageIndex}&from_id=${from_id}`;
        },
        fetcher,
        {
            revalidateFirstPage: false,
        },
    );
    // more code
}

How can I prevent useSWRInfinite/useSWR revalidating even if from_id changes (excludes profile_id and currentPageIndex) ?

[koba04]

In this case, the key of the useSWRInfite is currentPageIndex and profile_id, so you return the values as the key and combine them in the fetcher function.

const usePost = (profile_id, from_id = '') => {
    const PAGE_LIMIT = 5;
    let { data, size, setSize, error, mutate, isValidating } = useSWRInfinite(
        (pageIndex, previousPageData) => {
            const currentPageIndex = pageIndex + 1;
            return [currentPageIndex, profile_id];
        },
        ([currentPageIndex, profile_id]) => {
            return fetcher(`/posts/profile/${profile_id}?page=${currentPageIndex}&from_id=${from_id}`)
        },
        {
            revalidateFirstPage: false,
        },
    );
    // more code
}

[phatify]

@koba04 thanks, it works perfectly. But in this case, I want to use my custom function setFromId() instead of setSize() and then the key of the useSWRInfite will return a callback function with args is fromId.
e.g:

const { data, setFromId } = useSWRInfinite(
    (fromId) => {
        return fromId;
    },
   (fromId) => {
        return fetcher(`/posts/profile/${profile_id}?from_id=${fromId}`)
   }
)

//...
setFromId ('abcd1234');

This is all i expected, because pagination may not be completely pageIndex. Is there any solution for this problem?