conditional-fetching.md

Conditional Fetching

Conditional

useAccessor will not start a request if the accessor is null.

function useUser(id?: string) {
  const accessor = id ? getUser(id) : null;
  return useAccessor(accessor, state => state.data);
}

Dependent

Daxus also allow you to fetch data that depends on other data.

function useMyPost(id: string) {
  const { data: user } = useAccessor(getUser(id), state => state.data);
  const { data: myPost } = useAccessor(user ? getMyPost(user.id) : null, state => state.data);

  return myPost;
}