Function useCollectionOnce

firestore/useCollection.ts:61–104

(
  query?: Query<T> | null,
  options?: OnceOptions
)

};

export const useCollectionOnce = <T = DocumentData>(
  query?: Query<T> | null,
  options?: OnceOptions
): CollectionOnceHook<T> => {
  const { error, loading, reset, setError, setValue, value } = useLoadingValue<
    QuerySnapshot<T>,
    FirestoreError
  >();
  const isMounted = useIsMounted();
  const ref = useIsFirestoreQueryEqual<Query<T>>(query, reset);

  const loadData = useCallback(
    async (query?: Query<T> | null, options?: Options & OnceOptions) => {
      if (!query) {
        setValue(undefined);
        return;
      }
      const get = getDocsFnFromGetOptions(options?.getOptions);

      try {
        const result = await get(query);
        if (isMounted) {
          setValue(result);
        }
      } catch (error) {
        if (isMounted) {
          setError(error as FirestoreError);
        }
      }
    },
    []
  );

  const reloadData = useCallback(() => loadData(ref.current, options), [
    loadData,
    ref.current,
  ]);

  useEffect(() => {
    loadData(ref.current, options);
  }, [ref.current]);

  return [value as QuerySnapshot<T>, loading, error, reloadData];
};

export const useCollectionData = <T = DocumentData>(
  query?: Query<T> | null,