How To Redirect Google Login Page In Angular Front End

How To Articles

In this article, I will guide you through the process of redirecting the Google login page in an Angular front-end application. As a seasoned Angular developer, I’ve encountered this scenario many times and I’m excited to share my knowledge with you.

When working with Angular, we often need to implement authentication features that allow users to log in using their Google accounts. By default, Google provides a login page that we can redirect users to in order to authenticate. Let’s dive into the steps required to achieve this.

Step 1: Setting up the Angular Project

Before we begin, make sure you have a new or existing Angular project set up on your machine. If you don’t have one yet, you can create a new project using the Angular CLI by running the following command:

ng new my-angular-app

Once your project is set up, navigate to the project directory:

cd my-angular-app

Step 2: Installing the Google Sign-In Library

To implement Google login, we need to install the Google Sign-In library. Open your terminal and run the following command:

npm install ngx-google-signin --save

This command will install the ngx-google-signin library and add it as a dependency to your project.

Step 3: Configuring the Google API Console

In order to use the Google Sign-In library, we need to create a project in the Google API Console and generate the required API credentials. Here’s how you can do it:

  • Go to the Google API Console and create a new project.
  • Enable the Google Sign-In API for your project.
  • Go to the Credentials tab and create OAuth 2.0 credentials.
  • Specify the authorized JavaScript origins and redirect URIs for your Angular application.
  • Copy the generated Client ID.

Step 4: Implementing the Google Login Functionality

Now that we have our project set up and the necessary credentials, it’s time to implement the Google login functionality in our Angular application. Here’s how:

  1. Open the src/app/app.module.ts file in your project.
  2. Import the GoogleSignInModule from the ngx-google-signin library.
  3. Add the imported module to the imports array in the @NgModule decorator.
  4. Open the src/app/app.component.ts file in your project.
  5. Import the GoogleSignInSuccess and GoogleSignInFailure classes from the ngx-google-signin library.
  6. Add the necessary code to handle the successful and failed Google sign-in events.
  7. Use the generated Client ID from the Google API Console in the clientId property of the GoogleSignInComponent in your Angular template.

Step 5: Redirecting to the Google Login Page

Finally, it’s time to redirect users to the Google login page. To do this, simply navigate to the desired route in your Angular application and use the window.location.href property to set the URL to the Google login page.

window.location.href = 'https://accounts.google.com'

Make sure to replace the URL with the actual URL of the Google login page.

Conclusion

Redirecting the Google login page in an Angular front-end application may seem complex at first, but by following these steps, you can easily implement this functionality. Remember to set up your Angular project, install the Google Sign-In library, configure the Google API Console, and implement the necessary code to handle the Google login events. With this knowledge, you’ll be able to provide seamless authentication using Google accounts in your Angular applications.