How to integrate FlutterFlow with Auth0?

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Step 1: Set Up an Auth0 Account

Create an Account: Visit Auth0's website and sign up for a free account if you don't have one.
Create a New Application:
- Once logged in, navigate to the Applications section in the Auth0 dashboard.
- Click on the "Create Application" button.
- Enter a name for your application.
- Select "Native" as the application type.
- Click "Create".

Step 2: Configure Auth0 Application

Application Settings:
- In the settings of your newly created application, you'll find various fields.
- Note the Client ID and Client Secret; you will need them later.
- Under Allowed Callback URLs, add your desired callback URLs. For development, you might use something like https://YOUR-DOMAIN.auth0.com/callback.
- Under Allowed Logout URLs, add the URL where you want users to be redirected after they log out.
- Ensure that the Allowed Web Origins and Allowed Origins (CORS) fields have your development and production URLs.
- Save Changes: Click the "Save Changes" button at the bottom of the settings page.

Step 3: Configure Authentication in FlutterFlow

Open Your FlutterFlow Project: Log into your FlutterFlow account and open the project you want to integrate with Auth0.
Navigate to Settings:
- In the sidebar, click on "Settings".
- Click on "Authentication".
- Click on "Add Provider".
Select Auth0:
- Select "Auth0" from the list of authentication providers.
- Fill in the necessary fields:
  - Domain: This will be in the format YOUR-DOMAIN.auth0.com.
  - Client ID: Copy and paste the Client ID from your Auth0 application settings.
  - Client Secret: Copy and paste the Client Secret from your Auth0 application settings.
- Save Changes: Click the "Save" button.

Step 4: Configure Callback URI

In Auth0 Dashboard:
- Go back to the Auth0 dashboard under the "Applications" section.
- For the Allowed Callback URLs, add the URL that will handle the OAuth callback, typically within your FlutterFlow app. For example: flutterauth://login-callback.

Step 5: Install Required Packages in FlutterFlow

Open the Project in FlutterFlow Editor:
- Navigate to the "Pubspec.yaml" file within your FlutterFlow project.
- Add the following dependencies if they aren't already listed:
```
dependencies:
  flutter_appauth: ^app_version
  jwt_decoder: ^app_version
```
- Click "Save".

Step 6: Modify Your Dart Code

Implement AuthService:

Create a new Dart file (e.g., auth\_service.dart) and inside this file, include the following code:

import 'package:flutter_appauth/flutter_appauth.dart';
import 'package:jwt_decoder/jwt_decoder.dart';

class AuthService {
  static const String AUTH0\_DOMAIN = 'YOUR-DOMAIN.auth0.com';
  static const String AUTH0_CLIENT_ID = 'YOUR_CLIENT_ID';
  static const String REDIRECT\_URI = 'flutterauth://login-callback';
  static const String ISSUER = 'https://$AUTH0\_DOMAIN';

  final FlutterAppAuth \_appAuth = FlutterAppAuth();
  
  Future login() async {
    final AuthorizationTokenResponse result = await \_appAuth.authorizeAndExchangeCode(
      AuthorizationTokenRequest(
        AUTH0_CLIENT_ID,
        REDIRECT\_URI,
        issuer: ISSUER,
        scopes: ['openid', 'profile', 'offline\_access'],
        promptValues: ['login'],
      ),
    );
    
    String idToken = result.idToken;
    // Decode the token and extract user information
    Map decodedToken = JwtDecoder.decode(idToken);

    // Proceed with the user information
  }

  Future logout() async {
    // Perform logout from Auth0
  }
}

Replace YOUR-DOMAIN and YOUR_CLIENT_ID with your actual Auth0 domain and client ID.

Call the AuthService:
- Import the auth\_service.dart file in your main file or wherever you plan to use the authentication.
- Use AuthService's login function where you handle user login.

Step 7: Test the Integration

Run Your App: Test your app by running it on an emulator or physical device.
Login: Trigger the login process and see if it redirects to Auth0, then successfully logs you in.
Logout: Implement and test the logout functionality to ensure it works as expected.

Step 8: Deploy and Monitor

Deploy Your Application: Once everything is working fine locally, go ahead and deploy your application.
Monitor and Adjust:
- Use Auth0 logs and monitoring tools to keep an eye on authentication operations.
- Make adjustments to the configuration and handle corner cases as users begin to interact with your app.

By following these detailed steps, you should have a fully functioning integration between FlutterFlow and Auth0, providing robust authentication capabilities for your Flutter application.

FlutterFlow and Auth0 integration usecase

Scenario:

A tech startup is building a mobile application to offer a rich user experience for their new service. They need a secure and scalable authentication system to manage user sign-ups, logins, and role-based access controls. The team decides to use FlutterFlow for developing their app's frontend and chooses Auth0 for handling authentication.

Solution: Integrating FlutterFlow with Auth0

App Creation:

The startup uses FlutterFlow to design a sleek and responsive mobile application, incorporating various UI elements and features that reflect their brand and service offerings.
They implement different screens for user sign-up, login, user profile, and content access based on user roles.

Setting Up the Integration:

The development team configures Auth0 for their authentication needs, setting up various Auth0 tenants as per their staging and production environments.
Using the Auth0 dashboard, they define roles and permissions, creating a detailed matrix to control access levels within the app.
They integrate Auth0 SDK with FlutterFlow following Auth0’s documentation, ensuring smooth communication between the app and the authentication service.

User Authentication Workflow:

When a user opens the app, the authentication state is checked. If the user is not logged in, they are redirected to the login screen.
The user can log in or sign up using various methods provided by Auth0, including email/password, social logins (Google, Facebook), or enterprise logins.
Upon successful login/signup, Auth0 returns a JWT token which is securely stored in the app for maintaining the session.

Role-Based Access Control:

When the user logs in, their role is retrieved from Auth0 using the access token.
The app uses this role information to customize the UI and feature set available to the user. For example, admin users have access to a broader range of controls and data compared to regular users.
Specific data and features are gated in FlutterFlow using conditionals that check the user role, ensuring that unauthorized access is prevented.

User Management in Auth0:

The startup's admin team can use Auth0’s dashboard to manage users, view analytics, and modify access roles.
They can send password reset emails and handle other user-related actions directly from the Auth0 management panel.

Security and Monitoring:

Auth0 provides comprehensive metrics and logs which help in monitoring user activity, identifying potential security threats, and ensuring compliance with security policies.
The notification system in Auth0 alerts the development team to unusual login patterns or potential breaches.

Benefits:

Enhanced Security: Auth0 offers robust authentication mechanisms, reducing the risk of unauthorized access and ensuring data protection.
Scalability: The integration supports a large number of users without performance degradation, making it future-proof.
Ease of Implementation: FlutterFlow simplifies frontend development, and Auth0’s comprehensive SDKs make the integration process straightforward.
Centralized User Management: Admins can manage all user-related tasks from a unified Auth0 dashboard, saving time and effort.
Customizable User Experience: Role-based access control enables personalized user experiences within the app, increasing user satisfaction.

Conclusion:

By integrating FlutterFlow with Auth0, the tech startup can ensure secure, scalable, and efficient user authentication, enhancing the overall user experience and safeguarding sensitive information.

FlutterFlow and Auth0 integration: Step-by-Step Guide 2024

What is Auth0?