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【React / Next】SWRのfetch中のチラつきをなくす

Last updated at Posted at 2022-06-30

SWRのfetch中のチラつきをなくすための方法です。
公式に書かれていました。

環境

  • React: 17.0.2
  • Next: 11.1.3
  • SWR: ^1.2.2

サンプルコード

公式から拝借

SWR
const useUser = (id) => {
  const { data, error } = useSWR(`/api/user/${id}`, fetcher)

  return {
    user: data,
    // ここ
    isLoading: !error && !data,
  }
}
component
export const Component = () => {
  const { user, isLoading } = useUser(id);

  if (isLoading) {
    return <Spinner />;
  }

  return (
    // 省略
  );
};

参考

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