Adding Authentication to A Vue App with Firebase

Adding Authentication to A Vue App with Firebase

Firebase provides us with built-in authentication capabilities.

Firebase provides us with built-in authentication capabilities.

We can manage users and authenticate them easily with it.

In this article, we’ll look at how to use Firebase’s auth capabilities in a Vue app.

Create Password-Based Accounts

We can create password-based accounts with a few lines of code.

To do this, we can write:

App.vue

<template>
  <div>
    <form @submit.prevent="createUser">
      <input type="text" v-model="email" placeholder="email">
      <input type="password" v-model="password" placeholder="password">
      <input type="submit" value="create user">
    </form>
  </div>
</template>
<script>
import firebase from "firebase/app";
import "firebase/auth";
const firebaseConfig = {
  apiKey: "api-key",
  authDomain: "project-id.firebaseapp.com",
  databaseURL: "https://project-id.firebaseio.com",
  projectId: "project-id",
  storageBucket: "project-id.appspot.com",
  appId: "app-id"
};
export default {
  data() {
    return {
      email: "",
      password: ""
    };
  },
  beforeMount() {
    firebase.initializeApp(firebaseConfig);
  },
  methods: {
    createUser() {
      const { email, password } = this;
      firebase
        .auth()
        .createUserWithEmailAndPassword(email, password)
        .then(() => alert("user creeated"))
        .catch(function(error) {
          console.log(error);
        });
    }
  }
};
</script>

We initialize Firebase with an object to configure it.

The apiKey has the API key.

authDomain is the URL of the Firebase app.

dataBaseURL has the URL to the database.

projectId has the Firebase project ID.

storageBucket is the URL of the storage bucket.

appId is the app’s ID.

In the template, we have the form that accepts an email and password.

And we have the createUser method to create the user.

The createUserWithEmailAndPassword method accepts an email and password string to create the user with the email and password.

The then callback is called when user creation is successful.

catch callback is called when user creation failed.

error has the code and message properties to get the source of the error.

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