React Query mutation demo

react-query-demo-mutation.js

const [mutate, mutationState] = useMutation(patchMovies, {
   onSuccess: newMovie => {
     // Update `movies` while refetching all the list on background
     queryCache.refetchQueries(movies");
     queryCache.setQueryData(["movies", { id: newMovie.id }], newMovie);
   }
 });

const onSave = newMovie => mutate(newMovie);