Class-15 Troubleshooting Sign in with Google in Bolt.new

Setting up user authentication is a crucial step in application development. However, errors can arise during implementation, particularly with Google Sign-In in Firebase. This article walks through a real-world troubleshooting process for resolving an authentication issue when using Firebase in BoldNew.

Identifying the Issue

During the authentication setup, an error occurred when trying to sign in with Google. To diagnose the issue, we used the Developer Tools in the browser:

1. Open the browser's Developer Tools (usually by pressing F12 or Ctrl + Shift + I).

2. Navigate to the Console tab to check for authentication-related errors.

3. The error indicated that the domain boldnew.dev was not authorized in Firebase settings.

Fixing the Unauthorized Domain Issue

The error stemmed from Firebase not recognizing boldnew.dev as an authorized domain for authentication. Here’s how to fix it:

1. Go to Firebase Console: Navigate to Firebase Console.

2. Open Authentication Settings: Select your Firebase project and go to Authentication > Settings.

3. Add Authorized Domain: Under the Authorized Domains section, click Add Domain.

4. Enter boldnew.dev and confirm the addition.

5. For Local Development: If developing locally, add localhost as well.

6. Save Changes: Click Save to apply the changes.

Updating Firebase Configuration

To handle domain authorization errors more gracefully, we updated Firebase’s configuration to display clearer error messages if an unauthorized domain is used. This step ensures a better debugging experience in future deployments.

Testing the Fix

After making the necessary changes, we tested the authentication process:

1. Deployed the application and refreshed the browser.

2. Clicked "Sign in with Google" to check if the issue was resolved.

3. Since multiple Google accounts were logged in on the browser, it prompted a selection screen.

4. Selected a different Google account to verify authentication functionality.

Verifying in Firebase Authentication

To confirm successful authentication, we checked Firebase’s Authentication > Users section.

• The first user was created via email and password.

• The second user was created via Google Sign-In.

• Both accounts appeared correctly in Firebase, confirming that authentication was working properly.

Conclusion

This troubleshooting process successfully resolved the Google Sign-In issue in Firebase authentication. The key takeaways include:

• Checking Developer Tools for error messages.

• Ensuring all required domains are added to Firebase’s Authorized Domains.

• Verifying authentication in the Firebase Users section.

By following these steps, developers can efficiently resolve Google Sign-In issues and ensure a smooth authentication experience for their users. Stay tuned for more troubleshooting guides and best practices in app development!