Are you tired of asking your users to grant access to all scopes at once? Do you want to provide a better user experience by only requesting the necessary permissions? Look no further! In this article, we’ll dive into the world of incremental authorization using @abacritt/angularx-social-login and Google OAuth 2.0. By the end of this tutorial, you’ll be able to implement incremental authorization in your Angular application, giving your users more control over their data.
What is Incremental Authorization?
Incremental authorization is a technique that allows your application to request only the necessary permissions from the user, rather than asking for all scopes at once. This approach provides a better user experience, as users are only prompted to grant access to the resources that your application needs at that specific moment.
Why Use @abacritt/angularx-social-login?
@abacritt/angularx-social-login is a popular Angular library that provides an easy-to-use interface for social login and authentication. It supports multiple providers, including Google, Facebook, and LinkedIn, making it an ideal choice for implementing incremental authorization in your Angular application.
Prerequisites
Before we begin, make sure you have the following prerequisites in place:
- An Angular project set up with @abacritt/angularx-social-login
- A Google OAuth 2.0 project with a client ID and client secret
- A basic understanding of Angular and TypeScript
Step 1: Configure @abacritt/angularx-social-login
First, let’s configure @abacritt/angularx-social-login to use Google as our authentication provider. In your Angular module, add the following code:
import { SocialAuthServiceConfig, GoogleLoginProvider } from '@abacritt/angularx-social-login';
@NgModule({
declarations: [AppComponent],
imports: [],
providers: [
{
provide: 'SocialAuthServiceConfig',
useValue: {
autoLogin: true,
providers: [
{
id: GoogleLoginProvider.PROVIDER_ID,
provider: new GoogleLoginProvider('YOUR_CLIENT_ID', 'YOUR_CLIENT_SECRET')
}
]
} as SocialAuthServiceConfig
}
],
bootstrap: [AppComponent]
})
export class AppModule {}
Replace `YOUR_CLIENT_ID` and `YOUR_CLIENT_SECRET` with your actual Google OAuth 2.0 client ID and client secret.
Step 2: Implement Incremental Authorization
Next, let’s implement incremental authorization using the `scope` parameter in the `SocialAuthService`. Create a new service that will handle the authentication process:
import { Injectable } from '@angular/core';
import { SocialAuthService, GoogleLoginProvider } from '@abacritt/angularx-social-login';
@Injectable({
providedIn: 'root'
})
export class AuthService {
private scopes = [];
constructor(private socialAuthService: SocialAuthService) {}
login() {
this.scopes.push('email');
this.socialAuthService.signIn(GoogleLoginProvider.PROVIDER_ID, this.scopes);
}
requestAdditionalScope(scope: string) {
this.scopes.push(scope);
this.socialAuthService.signIn(GoogleLoginProvider.PROVIDER_ID, this.scopes);
}
}
In this example, we’re using the `scopes` array to keep track of the scopes that we’ve already requested. When the user logs in, we request the `email` scope. Later on, we can request additional scopes using the `requestAdditionalScope` method.
Step 3: Request Additional Scopes
Now, let’s implement a button that requests an additional scope when clicked. In your component, add the following code:
import { Component } from '@angular/core';
import { AuthService } from './auth.service';
@Component({
selector: 'app-example',
template: `
<button (click)="requestProfileScope()">Request Profile Scope</button>
`
})
export class ExampleComponent {
constructor(private authService: AuthService) {}
requestProfileScope() {
this.authService.requestAdditionalScope('profile');
}
}
In this example, we’re using the `requestAdditionalScope` method to request the `profile` scope when the button is clicked.
Step 4: Handle Authentication Responses
Finally, let’s handle the authentication responses from Google. In your component, add the following code:
import { Component } from '@angular/core';
import { SocialAuthService, SocialAuthServiceConfig } from '@abacritt/angularx-social-login';
@Component({
selector: 'app-example',
template: `
<div>Authenticated: {{ isAuthenticated }}</div>
`
})
export class ExampleComponent {
isAuthenticated: boolean;
constructor(private socialAuthService: SocialAuthService) {
this.socialAuthService.authState.subscribe((user) => {
if (user) {
this.isAuthenticated = true;
} else {
this.isAuthenticated = false;
}
});
}
}
In this example, we’re using the `authState` observable to detect when the user has authenticated or not. When the user authenticates, we set the `isAuthenticated` property to `true`.
Conclusion
That’s it! You’ve successfully implemented incremental authorization using @abacritt/angularx-social-login and Google OAuth 2.0. By following these steps, you can provide a better user experience by only requesting the necessary permissions from your users.
Scope | Description |
---|---|
Request access to the user’s email address | |
profile | Request access to the user’s profile information |
In this article, we’ve covered the basics of incremental authorization using @abacritt/angularx-social-login and Google OAuth 2.0. By using this approach, you can provide a better user experience and increase the chances of users granting access to your application.
Additional Resources
- @abacritt/angularx-social-login documentation: https://github.com/abacritt/angularx-social-login/blob/master/README.md
- Google OAuth 2.0 documentation: https://developers.google.com/identity/protocols/OAuth2
I hope this article has helped you understand how to implement incremental authorization using @abacritt/angularx-social-login and Google OAuth 2.0. Happy coding!
Here are 5 questions and answers about implementing Google incremental authorization using `@abacritt/angularx-social-login`:
Frequently Asked Question
Get ready to unlock the power of incremental authorization with Google using `@abacritt/angularx-social-login`!
What is incremental authorization, and how does it benefit my app?
Incremental authorization is a feature that allows users to grant your app access to specific resources or scopes without sharing their entire account information. This approach enhances user trust and security, as they have more control over what data they share with your app. By implementing incremental authorization, you can provide a more transparent and respectful user experience.
How do I set up incremental authorization with Google using `@abacritt/angularx-social-login`?
To set up incremental authorization, you’ll need to configure the `GoogleLoginProvider` with the required scopes. Import the `GoogleLoginProvider` from `@abacritt/angularx-social-login` and add the desired scopes to the `scopes` array. For example, if you want to access the user’s profile and email, add `’profile’` and `’email’` to the scopes array.
How do I request additional scopes after the initial login?
To request additional scopes, use the `updateScopes` method provided by `@abacritt/angularx-social-login`. This method allows you to update the scopes without re-authenticating the user. Simply call the `updateScopes` method and pass the new scopes as an array. The library will handle the rest, and the user will be prompted to grant the additional permissions.
What happens if the user denies access to additional scopes?
If the user denies access to additional scopes, the `updateScopes` method will return an error. You can handle this error by checking the response and providing a fallback or an alternative solution. Additionally, you can also use the `reauthorize` method to re-prompt the user for the denied scopes.
Are there any best practices for implementing incremental authorization?
Yes, there are several best practices to keep in mind when implementing incremental authorization. Firstly, only request the minimum scopes required for your app to function. Secondly, provide clear and concise explanations for why your app needs access to specific resources. Finally, respect the user’s decisions and avoid re-prompting them excessively for denied scopes.