Hot Reloading
Vuex supports hot-reloading mutations, modules, actions and getters during development, using webpack's Hot Module Replacement API. You can also use it in Browserify with the browserify-hmr plugin.
For mutations and modules, you need to use the store.hotUpdate()
API method:
// store.js
import Vue from 'vue'
import Vuex from 'vuex'
import mutations from './mutations'
import moduleA from './modules/a'
Vue.use(Vuex)
const state = { ... }
const store = new Vuex.Store({
state,
mutations,
modules: {
a: moduleA
}
})
if (module.hot) {
// accept actions and mutations as hot modules
module.hot.accept(['./mutations', './modules/a'], () => {
// require the updated modules
// have to add .default here due to babel 6 module output
const newMutations = require('./mutations').default
const newModuleA = require('./modules/a').default
// swap in the new modules and mutations
store.hotUpdate({
mutations: newMutations,
modules: {
a: newModuleA
}
})
})
}
Checkout the counter-hot example to play with hot-reload.
Dynamic module hot reloading
If you use modules exclusively, you can use require.context
to load and hot reload all modules dynamically.
// store.js
import Vue from 'vue'
import Vuex from 'vuex'
// Load all modules.
function loadModules() {
const context = require.context("./modules", false, /([a-z_]+)\.js$/i)
const modules = context
.keys()
.map((key) => ({ key, name: key.match(/([a-z_]+)\.js$/i)[1] }))
.reduce(
(modules, { key, name }) => ({
...modules,
[name]: context(key).default
}),
{}
)
return { context, modules }
}
const { context, modules } = loadModules()
Vue.use(Vuex)
const store = new Vuex.Store({
modules
})
if (module.hot) {
// Hot reload whenever any module changes.
module.hot.accept(context.id, () => {
const { modules } = loadModules()
store.hotUpdate({
modules
})
})
}