Tanzim Ibthesam

Posted on Jul 22, 2022

Create Firebase authentication with Vue3,Tailwind Css,Pinia

#vue #webdev #pinia

At first lets us look th e way to authenticate Firebase without Pinia. Here we are not going to discuss how to install firebase,pinia,Vue,Tailwind. If you dont know please have a look at the previous blog
This is how your config.js file will look like i put it in a folder named firebase
Without Pinia

In Register.vue

Its a simple form and now in script part

auth,createUserWithEmailAndPassword is imported from firebase config files here from firebase/config.js files
Here we see in firebase dashboard panel

So now a user is registered
In Pinia
Now the understanding will be clear how easy things are in Pinia
in store useAuthStore.js

We see now the registration under actions

IN Register.vue
In template part in case

`<input type="text" v-model="store.email" class="border-b-2 border-gray-300 w-4/5 py-1" name="" id=""><br> in place of `v-model="email" the same will be in place of password
In script part i have put everything under

So we see we take the whole authStore import it and keep inside variable store.
The Login and Logout is shown as follows

In Login.vue

Same as Register.vue

In Navbar.vue

**IN script setup **

**onAuthStateChanged*-Check whether a user is authenticated or not


useAuthStore.js

In state declare a new object called user
then in actions define a function called init()

In App.vue We need to initialize init() function in unMounted hook

If user is logged in we set the user uid and email of the authenticated user
While you are logged in if you enter Vue devtools you will see this

While logged out

You will see its empty

Route protection

If now any route needs to be guarded that should be done like this just in that route write beforeEnter and the **requireAuth* like mentioned here

Top comments (3)

Olivier • Oct 10

Thank you for the guide, it was incredibly useful!

I think that one small detail is missing, so I'm commenting in case someone else wants to follow this guide :

In your main.js, you have to import, create and use Pinia, or else it won't work. Here is the code to do it :

import { createApp } from 'vue'
import { createPinia } from 'pinia'
import App from './App.vue'
import router from './router'

const app = createApp(App)

app.use(router)
const pinia = createPinia()
app.use(pinia)
app.mount('#app')

Tanzim Ibthesam • Oct 11

Thanks so much Oliver its really good to know that code still works.

Olivier • Oct 12

Me again, another small suggestion for other users who might follow this code : the password from the login or signup forms is stored in Pinia's local storage, and it is erased only when the user logs out. But it stays as clear text in the local storage as long as the user is logged in, which might pose some security problem. This could be fixed with two possible solutions :

Changing login() and signup() to login(email, password) and signup(email, password) in useAuthStore.js, and removing the v-model="store.password" from the login and signup inputs. This way, the password will never enter the local storage and will be passed as an argument instead.
Adding a line with this.password = '' at the end of login() and signup()

DEV Community

Create Firebase authentication with Vue3,Tailwind Css,Pinia

Top comments (3)

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