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[react-cookie]useCookiesでセットしたばかりのcookieを取得できない

Last updated at Posted at 2022-06-26

👇のライブラリを使用した際に詰まったのでメモ
https://github.com/reactivestack/cookies/tree/master/packages/react-cookie

const [cookies, setCookie] = useCookie(['cookieName'])

setCookie('key', 'value')
cookies.key // => undefined

cookiesはuseCookie呼び出し時点のcookieの値がセットされた"[x: string]: any"型のオブジェクトに過ぎないため、useCookie後にセットした値は取り出せない。
undefinedとなる。

const [cookies, setCookie] = useCookie(['cookieName'])

setCookie('key', 'value')
cookies.key // => undefined

const [newCookies, _] = useCookie(['cookieName'])
newCookies.key // => 'value'

👆のように再度useCookieを呼び出せば、セットした値を取り出せる。
が、あまりきれいな書き方ではないので、そもそも設計が間違っているのかもしれない。

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