"Unlocking the Power of Pinia Store in Nuxt3: A Guide to Composables

Question

"Unlocking the Power of Pinia Store in Nuxt3: A Guide to Composables

Ever since updating to nuxt 3.4.0, it seems that using Pinia store in composeables is no longer supported.

//example composable
import { useAuthStore } from '~/store/auth-store';
const authStore = useAuthStore();

export function doSomethingWithStore() {
  return authStore.checkAuthUser;
}

As a result, you may encounter the following error message:

getActivePinia was called with no active Pinia. Did you forget to install pinia? const pinia = createPinia() app.use(pinia) This will fail in production.

Check out this StackBlitz example for reference: https://stackblitz.com/edit/broken-pinia-store-in-composeables?file=composables%2FthisBreaks.js,nuxt.config.ts

javascript vue.js nuxt.js pinia nuxt-plugin

Answer 1

Answer №1

The reason why

const authStore = useAuthStore();

is declared outside any function like you did is because it is called at an early point in the application startup, before the Pinia instance is properly initialized inside the Vue instance.

To make it work correctly, do it this way:

import { useAuthStore } from '~/store/auth-store';

export function handleStoreData() {
  const authStore = useAuthStore();
  return authStore.checkAuthUser;
}

Here are some safe places to make Pinia calls (although not an exhaustive list):

within the <script setup> section
inline within the <template> section
inside a function like defineNuxtMiddleware

Answer 2

The reason why

const authStore = useAuthStore();

is declared outside any function like you did is because it is called at an early point in the application startup, before the Pinia instance is properly initialized inside the Vue instance.

To make it work correctly, do it this way:

import { useAuthStore } from '~/store/auth-store';

export function handleStoreData() {
  const authStore = useAuthStore();
  return authStore.checkAuthUser;
}

Here are some safe places to make Pinia calls (although not an exhaustive list):

within the <script setup> section
inline within the <template> section
inside a function like defineNuxtMiddleware

Answer 3

Answer №2

The @pinia/nuxt module was mistakenly installed in your nuxt.config.ts file. In Nuxt 3, the buildModules property has been replaced by modules. This change can be identified by the Typescript error message you receive:

// nuxt.config.ts
export default defineNuxtConfig({
  // replace buildModules by modules
  modules: ['@pinia/nuxt'],
});

Another important point to note is that you must call the useAuthStore from within the composable function to avoid trying to load the store before pinia is fully loaded. The call should occur when the file is imported, not when the composable is used.

import { useAuthStore } from '~/store/auth-store';

export function doSomethingWithStore() {
  const authStore = useAuthStore();
  return authStore.checkAuthUser;
}

For a demonstration, refer to this working stackblitz

Answer 4

The @pinia/nuxt module was mistakenly installed in your nuxt.config.ts file. In Nuxt 3, the buildModules property has been replaced by modules. This change can be identified by the Typescript error message you receive:

// nuxt.config.ts
export default defineNuxtConfig({
  // replace buildModules by modules
  modules: ['@pinia/nuxt'],
});

Another important point to note is that you must call the useAuthStore from within the composable function to avoid trying to load the store before pinia is fully loaded. The call should occur when the file is imported, not when the composable is used.

import { useAuthStore } from '~/store/auth-store';

export function doSomethingWithStore() {
  const authStore = useAuthStore();
  return authStore.checkAuthUser;
}

For a demonstration, refer to this working stackblitz

Answer 5

Answer №3

If you are unfamiliar with Nuxt or its development tools, it is possible that you have only installed @pinia/nuxt if you used the dev tools during installation. Keep in mind that you must also install pinia itself. If you missed this step, be sure to install both pinia and @pinia/nuxt.

To do this, you can use one of the following commands:


pnpm install -D pinia @pinia/nuxt
# or
yarn add -D pinia @pinia/nuxt
# or
npm install -D pinia @pinia/nuxt

Here is a link to the Pinia documentation:

Answer 6

If you are unfamiliar with Nuxt or its development tools, it is possible that you have only installed @pinia/nuxt if you used the dev tools during installation. Keep in mind that you must also install pinia itself. If you missed this step, be sure to install both pinia and @pinia/nuxt.

To do this, you can use one of the following commands:


pnpm install -D pinia @pinia/nuxt
# or
yarn add -D pinia @pinia/nuxt
# or
npm install -D pinia @pinia/nuxt

Here is a link to the Pinia documentation:

"Unlocking the Power of Pinia Store in Nuxt3: A Guide to Composables

Answer №1

Answer №2

Answer №3

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