implementing firebase authentication with async/await

I have a basic Vue.js app that is currently authenticating existing users in Firebase using the `then` method. I would like to refactor my logic to use `async` and `await` instead. Can anyone provide guidance on how I can rewrite my code with `async` and `await`? I've checked the documentation but couldn't find any relevant information. Here is a snippet of my current code:

<template>
    <div>
       <form @submit.prevent="userLogin">
            <h3>Sign In</h3>

            <div>
                <label>Email address</label>
                <input type="email"  v-model="user.email" />
            </div>

            <div>
                <label>Password</label>
                <input type="password"  v-model="user.password" />
            </div>

            <button type="submit" >Sign In</button>
        </form>
    </div>
</template>

<script>
import firebase from 'firebase'

export default {
    name: 'Login',
    data() {
    return {
      user: {   
        email: '',
        password: ''
      }
    };
  },
  methods: {
   async userLogin() {
        try {
            await firebase.auth().signInWithEmailAndPassword(this.user.email, this.user.password);
            this.$router.push('/');
        } catch (error) {
            alert(error.message);
        }
    }
  }
}
</script>

Answer №1

Declare the attribute as a promise function. Remember to utilize function() {} and avoid using () => {} to prevent losing the context of this

<script>
import firebase from 'firebase'

export default {
    name: 'Login',
    data() {
    return {
      user: {   
        email: '',
        password: ''
      }
    };
  },
  methods: {
   userLogin : async function () {
      try {
        await firebase.auth().signInWithEmailAndPassword(this.user.email, this.user.password)

        this.$router.push('/')
      }
      catch(e){
          alert(error.message);
      }
    }
  }
}
</script>

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