Integrate Angular 10 + Firebase RealTime Database using @angular/fire

Tutorial: Integrate Angular 10 Firebase Realtime Database using @angular/fire example

Firebase is a platform developed by Google for creating mobile and web applications. Firebase gives you the tools to develop high-quality apps, grow your user base, and earn more money. So In the tutorial, I introduce an example “Integrate Angular 10 Firebase using Realtime database using @angular/fire”.

– I draw overview diagram architecture of our system.
– Create a Firebase account and setup a Firebase Realtime database.
– Setup an Angular WebApp that integrate with Firebase.

Video Guide – How to integrate Angular with Firebase Realtime Database

Overview Project – @angular/fire Integrate Angular 10 Firebase Example

Angular Web Application uses Angular Firebase lib @angular/fire to interact with Firebase realtime database.

Technology:
– Angular 10
– @angular/fire

Create Firebase Account and Setup Firebase Realtime database

You go to Firebase Console at here, login with your Google Account, then click on Add Project.

Enter Project name, select Country/Region:

– Step 1:

– Step 2:

– Step 3:

Project is created:

Add Firebase to your web application:

– Create Firebase Realtime database:

Implement Angular Firebase Web App

Create Angular Project

Create Angular project by cmd:

ng new project-name
cd project-name

– Install @angular/fire and Firebase:

npm install firebase @angular/fire --save

Integrate Firebase in Angular Project using @angular/fire

– Add Firebase config to environments variable:

Open /src/environments/environment.ts, add your Firebase configuration:

export const environment = {
  production: false,
  firebase: {
    apiKey: "AIzaSyBmeT3HEMFfjNmho1F5liOclLkjBNKJrmU",
    authDomain: "loizenjava-firebase.firebaseapp.com",
    databaseURL: "https://loizenjava-firebase.firebaseio.com",
    projectId: "loizenjava-firebase",
    storageBucket: "loizenjava-firebase.appspot.com",
    messagingSenderId: "887328809823"
  }
};

– Setup Angular @NgModule, open /src/app/app.module.ts, import AngularFireModule and other AngularFire2 modules if necessary. Don’t forget specify Firebase configuration with AngularFireModule.initializeApp(firebaseConfig):

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { FormsModule } from '@angular/forms';
 
import { AngularFireModule } from '@angular/fire';
import { AngularFireDatabaseModule } from '@angular/fire/database';
import { environment } from '../environments/environment';
 
import { AppComponent } from './app.component';
 
@NgModule({
  declarations: [
    AppComponent
  ],
  imports: [
    BrowserModule,
    FormsModule,
    AngularFireModule.initializeApp(environment.firebase),
    AngularFireDatabaseModule, // for database
  ],
  providers: [],
  bootstrap: [AppComponent]
})
export class AppModule { }

Use @angular/fire module in Angular component by opening /src/app/app.component.ts and then adding below code:

import { Component } from '@angular/core';
import { AngularFireDatabase } from '@angular/fire/database';
import { Observable } from 'rxjs';
 
@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})
export class AppComponent {
  title = 'Angular8Firebase';
  description = 'Angular-Fire-Demo';
 
  itemValue = '';
  items: Observable;
 
  constructor(public db: AngularFireDatabase) {
    this.items = db.list('items').valueChanges();
  }
 
  onSubmit() {
    this.db.list('items').push({ content: this.itemValue});
    this.itemValue = '';
  }
}

– Change html file of App Component:

<div class="row">
  <div class="col-sm-5" 
        style="background: linear-gradient(to bottom, #ffffff 0%, #ccffff 100%);
                margin: 10px; padding: 10px; border-radius:8px">

    <div style="margin:10px; padding:10px;border-radius:7px;background: linear-gradient(to bottom, #ffffff 0%, #ffccff 100%);">
					<h5>Firebase RealTime Database with Angular</h5>
					<hr>
					<p>
						<strong>@Copyright</strong> by <span style="color: blue">
						<a href="https://loizenjava.com">https://loizenjava.com
						</a></span>
						 <br> 
						<strong>youtube</strong>: <span style="color: crimson">
						<a href="https://www.youtube.com/channel/UChkCKglndLes1hkKBDmwPWA">loizenjava
						</a></span>
					</p>
		</div>

    <div>
      <form (ngSubmit)="onSubmit()">
        <div class="form-group">
          <label for="item">Item</label>
          <input type="text" class="form-control" id="item" placeholder="Enter content..."
                required [(ngModel)]="itemValue" name="item">
        </div>
  
        <div class="btn-group">
          <button type="submit" class="btn btn-success">Submit</button>
        </div>
      </form>
    </div>
    <hr>
    <h4>Data from Firebase Realtime Database</h4>
    <div style="background: linear-gradient(to bottom, #ffffff 0%, #ffffcc 100%);
                padding:10px; border-radius:8px">
      <li *ngFor="let item of items | async">{{item.content}}</li>
    </div>
  </div>
</div>

– Add Bootstrap in index.html file:

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>AngularFirebaseDatabase</title>
  <base href="/">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="icon" type="image/x-icon" href="favicon.ico">
  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css">
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.0/umd/popper.min.js"></script>
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js"></script>
</head>
<body>
  <div class="container">
  <app-root></app-root>
  </div>
</body>
</html>

Finally Angular Firebase Project Structure:

Running and Testing

– Open browser with url http://localhost:4200/, enter Item content.
Item data displays immediately:

– Firebase Realtime Database:

Sourcecode – Integrate Angular 10 Firebase Example

Sourcecode for “@angular/fire Integrate Angular 10 Firebase Example – Firebase Realtime Database”:

Integrate-Angular-Firebase-Database-with-Angular-Fire

– Github sourcecode:

Github-Angular-Firebase