Creating a Chatting App using Vue Js and Firebase

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Creating a live chat application using Vue.js and Firebase is relatively simple, and can be done using the following steps:

  1. Set up a new Vue.js project using the Vue CLI (Command Line Interface). This can be done by running the following command in your terminal:
vue create my-chat-app
  1. Install the Firebase JavaScript library by running the following command in your terminal:
npm install firebase
  1. In the main.js file, import the Firebase library and initialize it with your Firebase project’s configuration.

import firebase from 'firebase'

apiKey: “YOUR_API_KEY”,
authDomain: “YOUR_AUTH_DOMAIN”,
projectId: “YOUR_PROJECT_ID”,
storageBucket: “YOUR_STORAGE_BUCKET”,
messagingSenderId: “YOUR_SENDER_ID”,
appId: “YOUR_APP_ID”

You can find your project’s configuration in the Firebase console.

  1. Create a new Vue component for the chat application. This component will handle displaying the chat messages and sending new messages. In the template section of the component, add a form for sending new messages and a list for displaying existing messages.
<form @submit.prevent="sendMessage">
<input type="text" v-model="newMessage" placeholder="Type your message here">
<button type="submit">Send</button>
<li v-for="message in messages" :key="">
{{ message.text }}
  1. In the script section, define the data properties, methods, and lifecycle hooks needed for the component.
export default {
data() {
return {
messages: [],
newMessage: ''
created() {
methods: {
getMessages() {
firebase.database().ref('messages').on('value', snapshot => {
this.messages = snapshot.val();
sendMessage() {
firebase.database().ref('messages').push({ text: this.newMessage });
this.newMessage = '';


In the created lifecycle hook, a method named getMessages is called that uses the Firebase database() API to retrieve the messages stored in the Firebase Realtime Database and set the component’s messages data property. In the sendMessage method, it uses the push() method to add a new message to the Firebase Realtime Database.

  1. Add the component to the Vue instance in the main.js file, and render it on the page.

import ChatApp from './components/ChatApp.vue'

new Vue({
el: ‘#app’,
render: h => h(ChatApp)


In this code, we’re creating a new Vue instance, and binding it to the element with the ID of “app”. Then, we’re using the render option to render the ChatApp component on the page.

Make sure you have an element with id='app' in your index.html as following:

<div id="app"></div>


Please keep in mind that this is just an example, and you will probably need to make adjustments to the code depending on your specific requirements.

And don’t forget that Firebase has usage limits, which you can found at the Firebase pricing page.

What to do next?

Once you’ve implemented the code I provided, you should have a working live chat application that uses Vue.js and Firebase. Next, you can test the application by running it in a development server, by running the following command in your terminal:

npm run serve


This will start a development server and open the application in your browser. You should now be able to send and receive messages in real-time.

After that, you may want to consider implementing additional features to enhance the user experience, such as user authentication, timestamp for each message, UI improvements, or notification alerts.

You can also deploy your application to a production environment such as Firebase Hosting, Heroku, or other hosting services.

Also, you may want to consider securing your Firebase database by using Firebase Security Rules. This will ensure that only authorized users can access the chat messages.

Please let me know if there is anything else I can help you with.


Factors that affect the success of running software application:

There are several factors that can affect the success of a software application, such as the specific environment it’s running in, dependencies, and the overall quality of the code. Also, Firebase has some specific limitations, pricing, and rules for usage that you have to keep in mind.

However, if you follow the instructions and code I’ve provided, and make sure that your dependencies are correctly installed and up-to-date, you should be able to run the application without any issues. If you run into any problems, please let me know and I’ll do my best to help you troubleshoot the issue.

Alternatives to Firebase that can be used to build a live chat application:

Yes, there are several alternatives to Firebase that can be used to build a live chat application. Some popular options include:

  1. is a JavaScript library that allows for real-time, bidirectional communication between web clients and servers. It can be used with a variety of different back-end languages and frameworks, including Node.js. With, you can create a web socket connection between the client and server, and use events to send and receive messages in real-time.
  2. SignalR: SignalR is a library for ASP.NET that allows for real-time communication between web clients and servers. It uses web sockets to send and receive messages in real-time, but also falls back to other technologies (such as long polling) when web sockets are not available.
  3. WebRTC: WebRTC is a technology that allows for real-time communication between web browsers. It can be used to build a peer-to-peer chat application, and it can be used with a signaling server to establish a connection between the clients.

If you would like to use one of these options specifically, let me know, and I could provide you more details and sample codes on how to use them for a live chat app.

Please keep in mind that each option will have different implementation details, benefits and limitations, as well as different level of complexities that you have to consider while choosing one of them.

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