Securing page access for unlogged users using VueJS: A guide

Question

Securing page access for unlogged users using VueJS: A guide

As I continue to hone my skills in VueJs, I am experimenting with creating sample applications. Currently, I am working on a straightforward app that features a login page where users input their credentials to access their profile. However, I am struggling to find a method to prevent unauthorized users from viewing the profile section by manually changing the URL to /profile.

This application is quite basic, utilizing only JavaScript and Bootstrap.

Is there a way to automatically redirect users back to the login page if they are not logged in and attempt to access the profile page?

javascript vue.js single-page-application vue-router

Answer 1

Answer №1

If you want to verify if a user is logged in before navigating, you can utilize the navigation guards in Vue Router. This way, you can ensure that certain routes are only accessible to authenticated users.

Here's how you can set up your routes:

...
{
    path:'/dashboard',
    meta:{requiresAuth:true},
    component:DashboardComponent
},
...

For instance, you can implement the following logic:

router.beforeEach((to, from, next) => {

    if (to.meta.requiresAuth && !AuthService.isAuthenticated()) {
        // User is not logged in, redirect to login page
        return next({path:'/login'}); 
    }

    return next();
});

Answer 2

If you want to verify if a user is logged in before navigating, you can utilize the navigation guards in Vue Router. This way, you can ensure that certain routes are only accessible to authenticated users.

Here's how you can set up your routes:

...
{
    path:'/dashboard',
    meta:{requiresAuth:true},
    component:DashboardComponent
},
...

For instance, you can implement the following logic:

router.beforeEach((to, from, next) => {

    if (to.meta.requiresAuth && !AuthService.isAuthenticated()) {
        // User is not logged in, redirect to login page
        return next({path:'/login'}); 
    }

    return next();
});

Answer 3

Answer №2

If there are only a few routes that need to be protected, you can also utilize the beforeEnter parameter.

routes.js
import {ifAuthenticated} from "../middleware/authentication";
{
    path: '/test',
    name: 'Test',
    component: Test,
    beforeEnter: ifAuthenticated
},

authentication.js
import store from '../../store'

export const ifAuthenticated = (to, from, next) => {
  store.dispatch('User/getUser')
      .then(() => {
        next()
      })
      .catch(() => {
        next({ name: 'Login', query: { redirect_to: to.fullPath } })
      })
}

Here is an example utilizing Vuex for authentication.

Answer 4

If there are only a few routes that need to be protected, you can also utilize the beforeEnter parameter.

routes.js
import {ifAuthenticated} from "../middleware/authentication";
{
    path: '/test',
    name: 'Test',
    component: Test,
    beforeEnter: ifAuthenticated
},

authentication.js
import store from '../../store'

export const ifAuthenticated = (to, from, next) => {
  store.dispatch('User/getUser')
      .then(() => {
        next()
      })
      .catch(() => {
        next({ name: 'Login', query: { redirect_to: to.fullPath } })
      })
}

Here is an example utilizing Vuex for authentication.

Securing page access for unlogged users using VueJS: A guide

Answer №1

Answer №2

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