Logout (Laravel Sanctum Authentication with the Vue Composition API)

When building a web application with Laravel and Vue.js, ensuring proper user authentication and security is crucial. Laravel Sanctum provides a simple and secure way to authenticate users for single-page applications (SPAs) by issuing API tokens for access to the application’s features.

When a user logs out of the application, it’s important to clear their authentication token to prevent unauthorized access. In this article, we will discuss how to implement a logout functionality using Laravel Sanctum authentication and the Vue Composition API.

Implementing Logout with Laravel Sanctum and Vue Composition API

First, you need to set up Laravel Sanctum for API token authentication by following the official documentation. Once you have configured Sanctum and integrated it with your Vue.js frontend, you can implement the logout functionality as follows:

1. In your Vue component, import the necessary dependencies:

    
    import { useStore } from 'vuex';
    import { ref } from 'vue';
    
    

2. Define a method to handle the logout action:

    
    const store = useStore();
    const logout = async () => {
        try {
            await axios.post('/api/logout');
            store.commit('logout'); // Commit a Vuex mutation to clear the user's authentication state
        } catch (error) {
            console.log(error);
        }
    }
    
    

3. In your template, use a button or link to trigger the logout method:

    
    <button @click="logout">Logout</button>
    
    

4. Finally, update your backend Laravel route to handle the logout request:

    
    Route::post('/logout', function () {
        auth()->user()->tokens->each(function ($token, $key) {
            $token->delete();
        });
        return response()->json('Logged out successfully', 200);
    });
    
    

Conclusion

By following these steps, you can implement a secure logout functionality using Laravel Sanctum authentication and the Vue Composition API. When a user logs out of the application, their authentication token will be invalidated, ensuring that they cannot access protected resources until they log back in.

Proper authentication and security measures are essential for any web application, and using Laravel Sanctum with Vue.js provides a straightforward and effective solution for SPAs. By implementing a robust logout mechanism, you can enhance the overall security and user experience of your application.