vue js two SPAs - vue.js

Question

I am building a web app with two layouts (for login page, and dashboard). Each of them are represented as SPA application, so each has router-view. The main problem is 'How to connect them and redirect from one to another?'.
I have a App.vue - check if user is authorized. if yes - redirect to Dashboard.vue, else - redirect to Login.vue. Each of them has there own router-view.

Answer 1

An SPA should be a single html file which serves up your app and all the routes, so the basic structure should be:
HTML
<div id="app">
</div>
<!-- bundled file -->
<script src="app.js"></script>
app.js
import Vue from 'vue'
import VueRouter from 'vue-router'
Vue.use(VueRouter)
import App from './components/App.vue' // import Base component
// Import views to register with vue-router
import Login from './components/views/Login.vue'
import Dashboard from './components/views/Dashboard.vue'
const guard = function(to, from, next) {
// Check if user is logged in (you will need to write that logic)
if (userIsLoggedIn) {
next();
} else {
router.push('/login');
}
};
const routes = [{
path: '/login',
component: Login
},{
path: '/dashboard',
component: Dashboard,
beforeEnter: (to, from, next) => {
guard(to, from, next); // Guard this route
}
}]
const router = new VueRouter({
mode: 'history', // history mode
routes
})
new Vue({
el: '#app',
router,
render: h => h(App) // mount base component
})
App.vue
<template>
<div>
<!-- Your layout -->
<!-- All views get served up here -->
<router-view></router-view>
</div>
</template>
I haven't tested that, but in this scenario every view component gets served up by App.vue which is mounted on the main vue instance. You then use the beforeEach guard to check that the user is logged in, if they are then you call next() which takes them to the route, if they are not then you redirect them to login.

Answer 2

vue-router has the ability to create custom guards for any route. You do not need 2 separate applications, just some safety with the routes in your router.
https://router.vuejs.org/en/advanced/navigation-guards.html
Your guard could be a function that checks for authentication.
Here's a full implementation tutorial from Auth0: https://auth0.com/blog/vuejs2-authentication-tutorial/