Angular CRUD with Firebase Application Example

In this article, we will be building a simple Angular CRUD (Create, Read, Update, Delete) application using Firebase’s realtime database. Firebase is a backend as a service that provides various tools and services to help developers build and scale their applications.

Prerequisites

Before we get started, make sure you have the following installed on your machine:

• Node.js and npm
• Angular CLI
• Firebase account and project set up

Setting up the Angular Project

First, let’s create a new Angular project using the Angular CLI:

ng new angular-crud-firebase
  cd angular-crud-firebase
  

Next, install the AngularFire library which provides Angular-specific functionality for Firebase:

npm install firebase @angular/fire --save
  

Configuring Firebase in Angular

Now, let’s configure Firebase in our Angular project. Add the Firebase configuration details to the environment files in your Angular project:

// src/environments/environment.ts
  export const environment = {
    production: false,
    firebaseConfig: {
      apiKey: "YOUR_API_KEY",
      authDomain: "YOUR_AUTH_DOMAIN",
      databaseURL: "YOUR_DATABASE_URL",
      projectId: "YOUR_PROJECT_ID",
      storageBucket: "YOUR_STORAGE_BUCKET",
      messagingSenderId: "YOUR_MESSAGING_SENDER_ID",
      appId: "YOUR_APP_ID"
    }
  };
  

Building the CRUD Application

Now, let’s create the components, services, and models for our CRUD application. We’ll create a service for interacting with the Firebase realtime database and a component for displaying the data.

Create Component

ng generate component items
  

Create Service

ng generate service item
  

Create Model

Create a model for the item that we will be storing in the database.

// src/app/item.model.ts
  export interface Item {
    id: string;
    name: string;
    description: string;
  }
  

Connecting to Firebase Realtime Database

Now, let’s create a service to interact with the Firebase realtime database. We’ll use AngularFire to connect to Firebase and perform CRUD operations on the data.

Using the Application

Finally, we can use the components and services we’ve created to interact with our Firebase realtime database. We can create, read, update, and delete items in the database using the Angular application we’ve built.

Conclusion

In this article, we’ve built a simple Angular CRUD application using Firebase’s realtime database. We’ve seen how to configure Firebase in an Angular project, create components and services, and interact with the Firebase database to perform CRUD operations. Firebase provides a powerful and scalable backend for our Angular applications, and with AngularFire, it’s easy to integrate Firebase functionality into our Angular projects.