Nuxt•7mo ago

Server side fetch refetches on client 3 times

I call useFetch() in 3 components and when I do switch locale it refetches 3 times on client. Why? Shouldn't it cached after 1st call? I followed recipe on nuxt docs so I got: Custom fetch

export default defineNuxtPlugin(() => {
  const { apiDomain } = useAppConfig();

  const api = $fetch.create({
    baseURL: apiDomain,
    onRequest({ options }) {
      const localeCookie = useCookie('i18n_redirected');

      if (localeCookie.value) {
        const headers = (options.headers ||= {});
        if (Array.isArray(headers)) {
          headers.push(['X-Localization', localeCookie.value]);
        } else if (headers instanceof Headers) {
          headers.set('X-Localization', localeCookie.value);
        } else {
          headers['X-Localization'] = localeCookie.value;
        }
      }
    },
  });

  // Expose to useNuxtApp().$api
  return {
    provide: {
      api,
    },
  };
});

export default defineNuxtPlugin(() => {
  const { apiDomain } = useAppConfig();

  const api = $fetch.create({
    baseURL: apiDomain,
    onRequest({ options }) {
      const localeCookie = useCookie('i18n_redirected');

      if (localeCookie.value) {
        const headers = (options.headers ||= {});
        if (Array.isArray(headers)) {
          headers.push(['X-Localization', localeCookie.value]);
        } else if (headers instanceof Headers) {
          headers.set('X-Localization', localeCookie.value);
        } else {
          headers['X-Localization'] = localeCookie.value;
        }
      }
    },
  });

  // Expose to useNuxtApp().$api
  return {
    provide: {
      api,
    },
  };
});

Composable

import type { UseFetchOptions } from 'nuxt/app';

export function useAPI<T>(
  url: string | (() => string),
  options?: Omit<UseFetchOptions<T>, 'default'> & { default?: () => T | Ref<T> },
) {
  return useFetch(url, {
    ...options,
    $fetch: useNuxtApp().$api,
  });
}

import type { UseFetchOptions } from 'nuxt/app';

export function useAPI<T>(
  url: string | (() => string),
  options?: Omit<UseFetchOptions<T>, 'default'> & { default?: () => T | Ref<T> },
) {
  return useFetch(url, {
    ...options,
    $fetch: useNuxtApp().$api,
  });
}

API method

import { useAPI } from '~/shared/composables/use-api';
import type { Menu } from './types';

export const getMenus = () => {
  // We call this api method in app.vue which is not re-render on locale switch
  // so we manually watch changing this cookie to trigger re-fetch with new locale
  const cookie = useCookie('i18n_redirected');
  return useAPI<{ data: { menus: Menu[] } }>('/menus', { watch: [cookie] });
};

import { useAPI } from '~/shared/composables/use-api';
import type { Menu } from './types';

export const getMenus = () => {
  // We call this api method in app.vue which is not re-render on locale switch
  // so we manually watch changing this cookie to trigger re-fetch with new locale
  const cookie = useCookie('i18n_redirected');
  return useAPI<{ data: { menus: Menu[] } }>('/menus', { watch: [cookie] });
};

4 Replies

salomon_.OP•7mo ago

Anyone?

warflash•7mo ago

Nesting useFetch composables most of the time is a bad idea, they generally should be top level it not retriggering hint's towards it not being bound properly to a setup function, as that should rerun on locale change. (assuming the locale is part of the url and you don't have custom :keys set)

salomon_.OP•7mo ago

So there is no way in nuxt to fetch some data here and there and it auto deduped repeatable calls? Like in tanstack query? So I should fetch it on top and pass through 5+ components?

warflash•7mo ago

You can do that just fine, however they way you are registering it is probably the issue https://nuxt.com/docs/api/composables/use-fetch#params getCachedData, key and dedupe are all things to consider

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Server side fetch refetches on client 3 times