Any tools available for automatically updating Vue code?

I have a button in the navigation bar that only appears when a user is logged in. However, I noticed that the button does not disappear or appear immediately when the user logs out or logs in. I have included my code below: Button:

<div v-if="loggedIn">
  <div class="w-2/12 hidden lg:flex" v-for="(data, index) in allLoggedInUsers" :key="index">
    <button @click="logout" class="downloadbtn">r;
      {{ data.logoutButton }}
    </button>
  </div>
</div>

In data:(), the value for loggedIn is set to false.

loggedIn: false

To update whether the user is logged in or not, I created a mounted() function:

mounted() {
    const user = firebase.auth().currentUser;
    if(user) {
      this.loggedIn = true;
    }
  },

Just to note, I have imported Firebase and Firebase/auth libraries, and allLoggedInUsers is a GraphQL query I am using.

Answer №1

To efficiently handle user sign-in state changes, it is recommended to implement an onAuthStateChanged listener in place of checking the currentUser:

mounted() {
  firebase.auth().onAuthStateChanged((user) => {
    if(user) {
      this.loggedIn = true;
    }
  });
},

The onAuthStateChanged listener is triggered each time there is a change in the authentication state, ensuring that the loggedIn status accurately reflects the current state.

For more insights on this topic, refer to the initial code snippet provided in Firebase's documentation on retrieving information about the signed-in user.

Answer №2

Visit this link for more information: https://stackoverflow.com/a/40586872/8647537

Take a look at the solution provided above. One quick, but not recommended method is using the following code:

vm.$forceUpdate();

However, it is important to note that this is not considered a good practice. To learn more about better alternatives, refer to the link mentioned.

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