Adding google authentication to asp net with angular visual studio template

Introduction

ASP.NET is a popular programming language used for building web applications. One common requirement in web development is to add authentication to the application. In this article, we will explore how to add Google authentication to an ASP.NET application built with the Angular Visual template.

Prerequisites

Before we begin, make sure you have the following:

  • Visual Studio installed on your
  • An Angular Visual Studio template project set up
  • A Google with a project set up

Step 1: Set up Google Developer Account

The first step is to set up a Google Developer account and create a project. these steps:

  1. Go to the Google Developers Console and sign in with your Google account.
  2. Create a new project by clicking on the “Create Project” button.
  3. Give your project a name and click on the “Create” button.

Step 2: Configure Google Authentication

Once you have created a project in the Google Developer Console, you need to configure Google authentication in your ASP.NET application. Follow these steps:

  1. In your ASP.NET project, open the Startup.cs file.
  2. Locate the ConfigureServices method and add the following code:

services.AddAuthentication()
    .AddGoogle(options =>
    {
        options.ClientId = "YOUR_CLIENT_ID";
        options.ClientSecret = "YOUR_CLIENT_SECRET";
    });

Replace YOUR_CLIENT_ID and YOUR_CLIENT_SECRET with the respective values from your Google Developer Console project.

Step 3: Update Angular

Next, we need to update the Angular configuration to the Google authentication. Follow these steps:

  1. In your Angular project, open the environment.ts file.
  2. Add the following code to the environment :

googleClientId: 'YOUR_CLIENT_ID'

Replace YOUR_CLIENT_ID with the ID from your Google Developer Console project.

Step 4: Implement Google Authentication

Now that we have configured Google authentication, we can implement it in our application. Follow these steps:

  1. In your Angular project, open the app.component.ts file.
  2. Add the following code to the AppComponent class:

import { Component } from '@angular/core';
import { AuthService } from './auth.service';

@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})
export class AppComponent {
  constructor(private authService: AuthService) {}

  loginWithGoogle() {
    this.authService.loginWithGoogle();
  }
}

Make sure you have the AuthService and injected into the AppComponent class.

Step 5: Create AuthService

Finally, we need to create the AuthService to handle the Google authentication. Follow these steps:

  1. In your Angular project, create a new file called auth.service.ts.
  2. Add the following code to the AuthService class:

import { Injectable } from '@angular/core';

@Injectable({
  providedIn: 'root'
})
export class AuthService {
  loginWithGoogle() {
    // Implement Google authentication logic here
  }
}

Replace the comment with the actual Google authentication logic.

Conclusion

In this article, we have learned how to add Google authentication to an ASP.NET application built with the Angular Visual Studio template. By following the steps outlined above, you can easily integrate Google authentication into your web application and provide a seamless login experience for your users.

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