Develop Reference

Pinia not initilizing in router for vue js

I have been trying to use Pinia for state management in my vue application. I've been running into the issue where pinia is being used before its initialised in the main.js folder.
This is the routes file.
import { createRouter, createWebHistory } from 'vue-router'
import {useUserStore} from '../stores/user'
const store = useUserStore()
const router = createRouter({
history: createWebHistory(import.meta.env.BASE_URL),
routes: [
{
path: '/',
name: 'login',
component: () => import('../views/LoginView.vue')
},
{
path: '/Dash',
name: 'dash',
component: () => import('../views/authed/DashView.vue'),
// beforeEnter: (to, from) => {
// }
},
{
path: '/Register',
name: 'register',
component: () => import('../views/RegisterView.vue')
}
]
})
export default router
This is the place where is store the data. user.js
import { ref, computed, watch } from 'vue'
import { defineStore } from 'pinia'
import axios from 'axios'
export const useUserStore = defineStore('user', () => {
const user = ref ({
name: "",
token: "",
auth: false,
})
// if (localStorage.getItem('user')) {
// user.value = JSON.parse(localStorage.getItem('user'))
// }
// watch(
// user,
// (userVal) => {
// localStorage.setItem('User', JSON.stringify(userVal))
// },
// { deep: true}
// )
const setAuth = (newToken, successAuth, authedName) => {
user.value.token = newToken
user.value.auth = successAuth
user.value.name = authedName
}
const checkAuth = () => {
try {
const response = axios.post('api/get-user', {}, {
headers: {
Authorization: `Bearer ${user.value.token}`
}
})
.then(({ data: userData }) => {
console.log('USER IS AUTHED')
})
} catch (err) {
console.log(err)
}
}
return {
user,
setAuth,
checkAuth,
}
},
{
persist: true
})
This is the main.js file.
import { createApp, watch } from 'vue'
import { createPinia } from 'pinia'
import piniaPluginPersistedstate from 'pinia-plugin-persistedstate'
import App from './App.vue'
import router from './router'
import "bootstrap/dist/css/bootstrap.min.css"
import "bootstrap"
import axios from 'axios'
import './assets/main.css'
const pinia = createPinia()
// if (localStorage.getItem('user')) {
// pinia.user.value = JSON.parse(localstorage.getItem('user'))
// }
// watch(
// pinia.state,
// (state) => {
// localStorage.setItem('state', JSON.stringify(state))
// },
// { deep: true }
// )
const app = createApp(App)
pinia.use(piniaPluginPersistedstate)
app.use(pinia)
app.use(router, axios)
app.mount('#app')
This is my error...
Uncaught Error: [🍍]: getActivePinia was called with no active Pinia. Did you forget to install pinia?
const pinia = createPinia()
app.use(pinia)
This will fail in production.
at useStore (pinia.js?v=3c6f7703:1256:13)
at index.js?t=1658100067018:5:9
The error happens when I add to the router file, I need to use it here so I can authenticate users to use certain routes.
import {useUserStore} from '../stores/user'
store = useUserStore()
This is the edit I've made to the main.js file from the first answer, however moving the place I import the file hasn't made a difference still getting the same error.
import { createApp, watch } from 'vue'
import { createPinia } from 'pinia'
import piniaPluginPersistedstate from 'pinia-plugin-persistedstate'
import App from './App.vue'
import "bootstrap/dist/css/bootstrap.min.css"
import "bootstrap"
import axios from 'axios'
import './assets/main.css'
const pinia = createPinia()
const app = createApp(App)
pinia.use(piniaPluginPersistedstate)
app.use(pinia)
import router from './router'
app.use(router, axios)
app.mount('#app')

in your main.js file when you import router from './router' this line will be excute const store = useUserStore() at this time Pinia is not define yet.

Vuex is not able to find namespace of module

I have a Vue2 sample app and want to add a Vuex store with a todos module. Inside the store folder I changed the index.js file to
import Vue from "vue";
import Vuex from "vuex";
import * as todos from "./modules/todos/index.js";
Vue.use(Vuex);
export default new Vuex.Store({
modules: {
todos
},
});
Inside
/store/modules/todos
I created the following files
index.js
import * as state from "./state.js";
import * as getters from "./getters.js";
export const module = {
namespaced: true,
state,
getters,
};
state.js
export const state = {
todos: []
}
getters.js
export const getters = {
todos(state) {
return state.todos;
}
};
Inside my component I want to access the getter:
<script>
import { mapGetters } from "vuex";
export default {
computed: {
...mapGetters("todos", ["todos"]), // namespace.getter
},
};
</script>
Unfortunately I get this error when loading the component
[vuex] module namespace not found in mapGetters(): todos/
Does someone know what's wrong or missing here? Thanks for help

I think your import/export statements are the culprit.
Try this:
/store.js
import Vue from "vue";
import Vuex from "vuex";
import todos from "./modules/todos";
Vue.use(Vuex);
export default new Vuex.Store({
modules: {
todos
},
});
/store/modules/todos/index.js
import state from "./state";
import getters from "./getters";
const todos = {
namespaced: true,
state,
getters,
};
export default todos;
The other files seem fine.

Work for me
Base API URL
project/src/api/common.js
import axios from 'axios'
export const HTTP = axios.create({
baseURL: 'http://api-url',
})
Base element project/src/api/element.js
import {HTTP} from './common'
function createHTTP(url) {
return {
async post(config) {
return HTTP.post(`${url}`, config).then(response => {
console.log(response)
return response.data
})
},
async get(element) {
return HTTP.get(`${url}${element.id}/`)
},
async patch(element) {
console.log(element)
return HTTP.patch(`${url}${element.id}/`, element).then(response => {
console.log(response)
return response.data
})
},
async delete(id) {
HTTP.delete(`${url}${id}/`)
return id
},
async list(queryParams = '') {
return HTTP.get(`${url}${queryParams}`).then(response => {
return response.data.results
})
}
}
}
export const Todos = createHTTP(`/todos/`)
Your store project/src/store/index.js
import Vue from 'vue'
import Vuex from 'vuex'
import todos from "#/store/modulse/todos";
Vue.use(Vuex)
export default new Vuex.Store({
modules: {
todos,
}
})
Your mutations types project/src/store/mutation-types.js
export const SET_TODOS ='SET_TODOS'
export const PATCH_TODO ='PATCH_TODO'
export const DELETE_TODO ='DELETE_TODO'
export const CREATE_TODO ='CREATE_TODO'
Your module project/src/store/modulse/todos.js
import {
Todos,
} from '#/api/elements'
import {
SET_TODOS, PATCH_TODO, DELETE_TODO, CREATE_TODO
} from '../mutation-types'
// Getters
export default {
state: {
todos: []
},
getters: {
getTodos(state) {
return state.todos
},
},
// Mutations
mutations: {
[SET_TODOS](state, todos) {
state.todos = todos
},
[PATCH_TODO](state, todos) {
let id = todos.id
state.todos.filter(todos => {
return todos.id === id
})[0] = todos
},
[CREATE_TODO](state, todo) {
state.todos = [todo, ...state.todos]
},
[DELETE_TODO](state, {id}) {
state.todos = state.todos.filter(todo =>{
return todo.id !==id
})
},
},
// Actions
actions: {
async setTodos({commit}, queryParams) {
await Todos.list(queryParams)
.then(todos => {
commit(SET_TODOS, todos)
}).catch((error) => {
console.log(error)
})
},
async patchTodo({commit}, todoData) {
await Todos.patch(todoData)
.then(todo => {
commit(PATCH_TODO, todo)
}).catch((error) => {
console.log(error)
})
},
async deleteTodo({commit}, todo_id) {
await Todos.delete(todo_id)
.then(resp => {
commit(DELETE_TODO, todo_id)
}).catch((error) => {
console.log(error)
})
},
async createTodo({commit}, todoData) {
await Todos.create(todoData)
.then(todo => {
commit(CREATE_TODO, todo)
}).catch((error) => {
console.log(error)
})
},
}
In your project/src/main.js
import Vue from 'vue'
import store from './store'
import App from './App.vue'
import Axios from 'axios'
Vue.prototype.$http = Axios;
new Vue({
store,
render: h => h(App),
}).$mount('#app')
In your project/src/App.vue
import {mapActions, mapGetters} from "vuex";
export default {
name: 'App',
components: {},
data() {
return {}
},
methods: {
...mapActions(['setTodos','patchTodo','createTodo','deleteTodo']),
},
computed: {
...mapGetters(['getTodos']),
},
async mounted() {
await this.setTodos()
},
}

VueX module not triggering actions

I'm following this tutorial about Vuex Pagination (https://whatthecode.dev/easy-vuejs-vuex-pagination/?utm_source=rss&utm_medium=rss&utm_campaign=easy-vuejs-vuex-pagination)
The only difference is that I changed my API request, however I can retrieve frontend data from state, but can't trigger action. I'm new to VueX, can someone spot the mistake?
PS: It never reaches console.log("Let's get")
store.js
import Vue from 'vue';
import Vuex from 'vuex';
import volumes, { VOLUMES_MODULE } from './volumes';
Vue.use(Vuex);
const store = new Vuex.Store ({
modules: {
[VOLUMES_MODULE]: volumes,
},
});
export default store;
volumes/index.js
import state from './state';
import actions from './actions';
export const VOLUMES_MODULE = 'volumes'
export default {
namespaced: true,
actions,
state,
}
export * from './state'
volumes/actions.js
import VolumeService from '../../services/VolumeService';
import {
SET_DATA,
SET_PAGINATION,
} from './mutations'
import state from './state';
export const FETCH_VOLUMES = 'load_volumes'
const volumeService = new VolumeService();
export default {
async [FETCH_VOLUMES]({ commit }, payload) {
console.log("Let Get");
const volumes = await volumeService.getTwentyVolumes({
...state.pagination,
...payload,
})
commit(SET_DATA, volumes.data)
commit(SET_PAGINATION, {
page: 2,
limit: 20,
totalPages: 2,
})
},
}
volumes/mutations.js
export const SET_PAGINATION = 'set_pagination'
export const SET_DATA = 'set_data'
export default {
[SET_PAGINATION](state, pagination) {
state.pagination = pagination
},
[SET_DATA](state, data) {
state.data = data
},
}
volumes/state.js
export const VOLUMES = 'data'
export const PAGINATION = 'pagination'
export default {
[VOLUMES]: [],
[PAGINATION]: {
page: 1,
limit: 20,
totalPages: 1,
},
}

First check if you have installed store to your view, normally in the main.js where you new a Vue instance, code should be like this:
import Vue from "vue";
import App from "./App.vue";
import store from "./store";
Vue.config.productionTip = false;
new Vue({
store,
render: (h) => h(App)
}).$mount("#app");
Then in the component where you want to call the load_volumes, use mapActions to add this function. code sample:
<script>
import {mapActions} from 'vuex'
export default {
name: "App",
components: {
},
methods: {
...mapActions({load_volumes: 'volumes/load_volumes'})
},
mounted(){
this.load_volumes()
}
}
</script>
working example can be found here:
https://codesandbox.io/s/call-vuex-actions-in-components-msdyo

How to mock vue router in a Vuex store test with Jest?

I have a vuex store like this:
// store.js
import Vuex from 'vuex'
import router from '../router' // this is a vuejs router
export const actions = {
async load({ dispatch, commit }) {
if (router.currentRoute.name === 'one-route') {
dispatch('oneModule/oneAction', null, { root: true })
}
}
}
export default new Vuex.Store({
state,
actions,
...
})
I would like to test it with Jest.
// store.test.js
import { createLocalVue } from '#vue/test-utils'
import Vuex from 'vuex'
import VueRouter from 'vue-router'
import { actions } from './store'
const localVue = createLocalVue()
localVue.use(Vuex)
localVue.use(VueRouter)
describe('store tests', () => {
let store, router, oneAction
beforeEach(() => {
oneAction = jest.fn()
const modules = {
oneModule: {
namespaced: true,
actions: { oneAction }
}
}
store = new Vuex.Store({ actions, modules })
router = new VueRouter({ routes: [{ name: 'one-route' }] })
}
test('call module action if one-route is selected', async () => {
router.push({ name: 'one-route' })
await store.dispatch('load')
expect(oneAction).toHaveBeenCalled()
})
}
This makes the following error:
Expected mock function to have been called, but it was not called.
What is the correct way to mock the router to make this test pass?
Thank you

Vue.js vuex state not working correctly

I'm using Vuex in my project with vue.js 2.0. My app.js looks like this:
import VueRouter from 'vue-router';
import Login from './components/Login.vue';
import Home from './components/Home.vue';
import VModal from 'vue-js-modal';
import Vuex from 'vuex';
import store from './store';
window.Vue = require('vue');
Vue.use(VueRouter);
Vue.use(VModal);
Vue.use(Vuex);
window.Bus = new Vue();
const routes = [
{ path: '/', component: Login, name: 'login' },
{ path: '/home', component: Home, name: 'home', beforeEnter: requireAuth },
];
const router = new VueRouter({
routes // short for `routes: routes`
});
const app = new Vue({
router,
store
}).$mount('#app');
function requireAuth() {
return this.$store.state.isLoggedIn;
}
My store looks like this:
import Vue from 'vue';
import Vuex from 'vuex';
Vue.use(Vuex);
const LOGIN = "LOGIN";
const LOGIN_SUCCESS = "LOGIN_SUCCESS";
const LOGOUT = "LOGOUT";
const store = () => {
return new Vuex.Store({
state: {
isLoggedIn: !!localStorage.getItem("token"),
user: null
},
mutations: {
[LOGIN] (state) {
state.pending = true;
},
[LOGIN_SUCCESS] (state) {
state.isLoggedIn = true;
state.pending = false;
},
[LOGOUT](state) {
state.isLoggedIn = false;
}
},
actions: {
login({state, commit, rootState}) {
commit(LOGIN_SUCCESS);
},
setUser({state, commit, rootState}, user) {
//todo
}
}
});
}
export default store;
However when I try to access a value from the state in my requireAuth function:
return this.$store.state.isLoggedIn;
or
return this.store.state.isLoggedIn;
I get the error:
Cannot read property '$store' of undefined
What could be wrong here?
--EDIT--
When I console.log(store); I see:
store() {
var _mutations;
return new __WEBPACK_IMPORTED_MODULE_1_vuex__["a" /* default */].Store({
state: {
isLoggedIn: !!localStorage.getItem("token"),

You have the function declared in the global scope like this:
function requireAuth() {
return this.$store.state.isLoggedIn;
}
So when you call this function this is bound by default to global object. But since ES6 this will be undefined instead of the global object. So you get the error cannot read $store of undefined
Since you are importing the store in app.js you can directly use:
function requireAuth() {
return store.state.isLoggedIn;
}
EDIT
export the created store instance itself, not a function that returns a store instance as follows:
store.js
import Vue from 'vue';
import Vuex from 'vuex';
Vue.use(Vuex);
const LOGIN = "LOGIN";
const LOGIN_SUCCESS = "LOGIN_SUCCESS";
const LOGOUT = "LOGOUT";
const store = new Vuex.Store({
state: {
isLoggedIn: !!localStorage.getItem("token"),
user: null
},
mutations: {
[LOGIN] (state) {
state.pending = true;
},
[LOGIN_SUCCESS] (state) {
state.isLoggedIn = true;
state.pending = false;
},
[LOGOUT](state) {
state.isLoggedIn = false;
}
},
actions: {
login({state, commit, rootState}) {
commit(LOGIN_SUCCESS);
},
setUser({state, commit, rootState}, user) {
//todo
}
}
});
export default store;

The requireAuth function should be:
function requireAuth() {
return store.state.isLoggedIn;
}
requireAuth is just a function defined in your app.js and this.$store is how you would refer to the store inside a Vue method. Instead, you can just refer to it in the function as store.