Saturday, June 22, 2024
AngularAngular 17Firebase

Angular Firebase Chat App

Angular Firebase Chat App

Creating a basic chat application in Angular involves several steps, from setting up your Angular project to creating the chat UI and integrating real-time messaging functionality. This example will guide you through creating a simple chat application using Angular 17 and Firebase for real-time database functionalities. Firebase is a popular choice for real-time applications due to its powerful features and ease of use.

Step 1: Setting Up Your Angular Project

First, you need to install Angular CLI if you haven’t already. Open your terminal or command prompt and run:

npm install -g @angular/cli

Next, create a new Angular project:

ng new chat-app

Navigate into your project directory:

cd chat-app

Step 2: Adding Firebase to Your Project

To use Firebase, you need to add Firebase to your project. First, install Firebase and AngularFire, the official library for Firebase and Angular:

npm install firebase @angular/fire

Next, you need to set up Firebase in your Angular project:

  1. Go to the Firebase console ( and create a new project.
  2. Add a new application and choose the web app option.
  3. You’ll get a configuration object. Keep it handy for the next steps.

Step 3: Configuring Firebase in Angular

Open or create the src/environments/environment.ts file and add your Firebase configuration:

export const environment = {
  production: false,
  firebaseConfig: {
    apiKey: "YOUR_API_KEY",
    authDomain: "YOUR_AUTH_DOMAIN",
    projectId: "YOUR_PROJECT_ID",
    storageBucket: "YOUR_STORAGE_BUCKET",
    messagingSenderId: "YOUR_MESSAGING_SENDER_ID",
    appId: "YOUR_APP_ID"

In your app.module.ts, import AngularFireModule and AngularFirestoreModule from @angular/fire, and initialize them with your Firebase config:

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';

import { AppComponent } from './app.component';
import { AngularFireModule } from '@angular/fire';
import { AngularFirestoreModule } from '@angular/fire/firestore';
import { environment } from '../environments/environment';

  declarations: [
  imports: [
    AngularFirestoreModule // imports firebase/firestore, only needed for database features
  providers: [],
  bootstrap: [AppComponent]
export class AppModule { }

Step 4: Creating the Chat Component

Generate a new component for the chat:

ng generate component chat

In your chat.component.html, add a simple form for sending messages and a list to display them:

<div class="chat">
    <li *ngFor="let message of messages">{{ message.text }}</li>
  <input [(ngModel)]="messageText" placeholder="Type a message..." />
  <button (click)="sendMessage()">Send</button>

In chat.component.ts, you’ll need to import AngularFirestore and set up a method to send messages:

import { Component, OnInit } from '@angular/core';
import { AngularFirestore } from '@angular/fire/firestore';
import { Observable } from 'rxjs';

  selector: 'app-chat',
  templateUrl: './chat.component.html',
  styleUrls: ['./chat.component.css']
export class ChatComponent implements OnInit {
  messages: Observable<any[]>;
  messageText: string;

  constructor(private firestore: AngularFirestore) {}

  ngOnInit() {
    this.messages = this.firestore.collection('messages').valueChanges();

  sendMessage() {
      text: this.messageText,
      timestamp: new Date()
    this.messageText = '';

Step 5: Displaying Messages in Real-Time

The sendMessage method adds a new message to the Firestore collection, and the ngOnInit method subscribes to message updates in real-time, displaying them in the chat component.

Step 6: Running Your Application

Finally, run your application:

ng serve

Open your browser and navigate to http://localhost:4200/ to see your chat application in action.

This basic chat application setup demonstrates how to create and configure a project in Angular 17, integrate Firebase for real-time database functionality, and implement a simple chat UI. You can extend this project with more features like authentication, message deletion, notifications, and more, depending on your needs.

the authortherichpost
Hello to all. Welcome to Myself Ajay Malhotra and I am freelance full stack developer. I love coding. I know WordPress, Core php, Angularjs, Angular 14, Angular 15, Angular 16, Angular 17, Bootstrap 5, Nodejs, Laravel, Codeigniter, Shopify, Squarespace, jQuery, Google Map Api, Vuejs, Reactjs, Big commerce etc.

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