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A comprehensive guide to adding user details to Firestore after email verification in Flutter apps, utilizing Firebase Authentication for a seamless process.
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How to Add User Details to Firestore DB After Email Verification in Flutter

In the world of app development, managing user data is crucial. When you’re building a Flutter app that requires user authentication, you’ll inevitably need to manage that data within a database. One common challenge developers face is how to add user information, such as email addresses and names, to a Firestore database after the email verification process. In this guide, we’ll break down the steps to implement this feature effectively using Firebase Authentication and Firestore.

Understanding the Problem

You have set up Firebase Authentication for your Flutter app and want to ensure that user details are only saved to Firestore once the user has verified their email address. This is an essential step to ensure data integrity and security, as it helps prevent the storage of unverified users' information.

Solution Overview

The solution involves a few key steps. By following this process, you will not only authenticate users via their email but also ensure that the relevant data is recorded in Firestore after the verification step.

Step-by-Step Implementation

Let’s go through the necessary steps in detail:

Set Up Firebase Authentication

Go to your Firebase Console.

Under the Authentication tab, enable Email/Password authentication.

User Registration/Login

In your Flutter app, set up a user registration or login flow using email authentication. Here's a simple snippet to get you started:

[[See Video to Reveal this Text or Code Snippet]]

Email Verification

After successful registration, send the verification email to the user. Use the following code after user creation:

[[See Video to Reveal this Text or Code Snippet]]

Inform the user to check their email for the verification message.

Handle User Verification Status

You’ll need to check if the user's email has been verified before adding them to Firestore. This can be done in your app logic with a simple check:

[[See Video to Reveal this Text or Code Snippet]]

Add User Details to Firestore

Once you confirm that the user has verified their email, you can add their details to the Firestore database.

Here is an example of how to add the user information:

[[See Video to Reveal this Text or Code Snippet]]

Create a User Reference (Optional)

While adding data to Firestore, it’s a good practice to create a reference to the authentication user ID. It’s not mandatory but helps in managing user records more efficiently.

Conclusion

By following these steps, you can effectively manage user data in your Flutter app using Firebase Authentication and Firestore. Ensuring that you only add user details after email verification will help maintain the integrity and security of your database. Now you can confidently build a Flutter app that keeps your user data safe and properly organized!

Feel free to explore more about Firebase Authentication and Firestore to enhance your app further. Good luck, and happy coding!