Astro pages with react components

[subinpauljoy]

Pretty new here. I am building a storefront experience using astro pages and react(jsx) components for cart, user interaction etc. I got to know about nanostores/query from the astro docs and somehow implemented a fetcher and mutator to manage auth and cart with my headless back end. I notice that each time when I change route, for example from /login to /cart my hydrator component fetches the back end and stores the result in the stores.

is it possible to optimize this? like the query/mutation result updates a store and it is available across astro pages(I believe it is a fresh load when we switch routes in astro) can experts take a look and help? project structure is as follows.

astro pages are there for /login, /cart, /checkout, /register, etc.
all astro pages are wrapped in a astro component which uses a Header react component as client:only.
the below component is the hydrator which is intended to hydrate cart and auth when the first time the site is loaded

import { useEffect } from 'react';
import { authStore, fetchAndStoreActiveCustomer } from '../../utils/stores/authStore';
import { $cart } from '../../utils/stores/cartStore';

export default function CartHydrator() {
  useEffect(() => {
    const hydrate = async () => {
      const vendureToken = localStorage.getItem('vendure_auth_token');
      if (!vendureToken) return;

      // Set status to loading while fetching customer
      authStore.set({ vendureToken, status: 'loading' });

      try {
        await fetchAndStoreActiveCustomer(vendureToken);

        // Wait a tick to ensure cartStore sees updated auth
        setTimeout(() => {
          console.log("fetching cart from hydrator");
          
          $cart.fetch(['get-cart']);
        }, 0);
      } catch (err) {
        console.error('CartHydrator failed:', err);
        authStore.set({ vendureToken: null, status: 'unauthenticated' });
        localStorage.removeItem('vendure_auth_token');
      }
    };

From thereon, usual storefront activities like add to cart, remove from cart, login, etc happens. each of these happens in an astro page with a react component inside that. using nanostores/query to fetch from back end. upon successful result, the store is supposed to get updated. it happens when I am in the same page. Observed that the hydrator getting called each time I switch pages. is It possible to persist these stores in between pages and use it as dependency for use effect(or something similar) to optimize network calls?

[ai]

Sorry, this question is more about Astro.

The only thing I can recommend—don’t do login in React’s useEffect. Use store’s event instead. The whole idea of Nano Stores is to keep logic away from components.