swr取消请求hook封装

function useCancellableSWR(key, swrOptions) {
  const source = axios.CancelToken.source();

  return [
    useSWR(key, (url) => axios.get(url, { cancelToken: source.token }).then(res => res.data), {
      ...swrOptions,
    }),
    source,
  ];
}

// usage:
const [{ data }, cancelFn] = useCancellableSWR('/endpoint');

cancelFn.cancel()

issue-129-comment