useLocalCache

A couple React hooks for using local storage as a cache. Created for use in Framer X.

I still have testing to do, so if anything isn't working please let me know or feel free to submit a pr :)

Installation

yarn add use-local-cache

Usage

useCachedFetch

const [data, fetchNewData] = useCachedFetch(url);

Fetches data form a url, and stores it in the cache.

data is the returned json data from the request. It will read as null during the first time it loads while data is fetched, then update when the data is received. All subsequent times will use the cache.

fetchNewData function will re-fetch the data from the url & update the data state.

By default useCachedFetch will fetch and update the local storage every time, but not update the data state. To automatically update the state when new data is fetched on page-load, pass true as the second parameter. (ex. const [data, fetchNewData] = useCachedFetch(url, true);

Example Usage

useLocalCache

const [cacheValue, setCacheValue] = useLocalCache(key);

Essentially a hook wrapper for useState & localStorage. Useful for storing state, json or strings in localstorage. Pass it any string to use as a storage key. (ex. useLocalCache("colors").

cacheValue is the string that is stored in the local cache.

setCacheValue function will update cache and update the cacheValue state.

Example Usage

Thanks

Thanks Henrique Gusso & Koen Bok for the idea and Patrick Burtchaell for advising.

Inspired from this fb thread

To-do:

• useImageCache(arrOfImages)
• write tests
• comment the code

Disclamer: This was created for prototyping in Framer X, and is most likely not suited for use on the web :)