Nuxt/examples/vuex-store/README.md

72 lines
1.7 KiB
Markdown

# Nuxt.js with Vuex
> Using a store to manage the state is important to every big application, that's why nuxt.js implement Vuex in its core.
## Activate the store option
First, we need to tell nuxt.js to activate the store, for this, we add a `nuxt.config.js` file:
```js
module.exports = {
store: true
}
```
## Create the store folder
When the store option is activated, nuxt will import it via `require('./store')`
After creating the `store/` folder, we can create our `store/index.js` file:
```js
import Vue from 'vue'
import Vuex from 'vuex'
Vue.use(Vuex)
const store = new Vuex.Store({
state: {
counter: 0
},
mutations: {
increment (state) {
state.counter++
}
}
})
export default store
```
> You don't need to install vuex since it's shipped with nuxt.js
## Voilà !
You're ready to use `this.$store` inside your `.vue` files :)
```html
<template>
<button @click="$store.commit('increment')">{{ $store.state.counter }}</button>
</template>
```
## fetch(context)
> Used to fill the store before rendering the page
The `fetch` method, *if set*, is called every time before loading the component (*only if attached to a route*). It can be called from the server-side or before navigating to the corresponding route.
The `fetch` method receives the context as the first argument, you can use it to fetch some data and fill the store. To make the fetch method asynchronous, **return a Promise**, nuxt.js will wait for the promise to be resolved before rendering the Component.
For example:
```js
export default {
fetch ({ store, params }) {
return axios.get('http://my-url')
.then((res) => {
store.commit('setUser', res.data)
})
}
}
```