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Discover how to fix the `invalid token` problem encountered when sending password reset links to newly created users in a Django application.
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This video is based on the question https://stackoverflow.com/q/73489868/ asked by the user 'Alessandro Mendolia' ( https://stackoverflow.com/u/7177812/ ) and on the answer https://stackoverflow.com/a/73525585/ provided by the user 'Alessandro Mendolia' ( https://stackoverflow.com/u/7177812/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Solving the Invalid Token Issue for Password Resets in Django During User Creation

Creating a user account in Django and ensuring that the user can easily reset their password is essential for a seamless user experience. However, some developers may face issues where the password reset token is invalid after the account creation. In this guide, we will address the problem encountered during the password reset process in Django and provide a clear solution to ensure that newly created users can reset their passwords without issues.

Understanding the Problem

In a specific application using Django REST Framework (DRF), an administrator creates user accounts through a custom endpoint. The objective is to automatically send a password reset link to the newly created user's email address. However, upon receiving the email, users encounter an invalid token error when attempting to reset their passwords.

Key Details of the Issue:

A custom view (AccountCreationView) is used to validate user roles and create new accounts.

A custom serializer (RegisterWithMailSendSerializer) is responsible for registering users and sending the reset password email.

Despite following the appropriate logic, the token being sent to the users in the email is invalid.

Dissecting the Current Implementation

Let's break down the processes that lead to this problem:

Custom Account Creation View

The AccountCreationView checks if the logged-in user has the right to create new accounts and then proceeds to handle the creation logic.

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

Sending the Password Reset Link

In the RegisterWithMailSendSerializer, after creating and saving the user, a token is generated using PasswordResetTokenGenerator. However, due to the method of execution, this token may not sync correctly with the system, leading users to encounter invalid tokens.

Password Reset Functionality

The custom serializers for resetting passwords (CustomAllAuthPasswordResetForm and CustomPasswordResetSerializer) are configured to handle password reset requests.

The Solution

Luckily, resolving this issue requires just a small adjustment in the user creation process. Instead of depending solely on custom logic, we can directly call the password reset endpoint using the email of the newly created user.

Implementing the Solution

Here's the straightforward adjustment to your existing code. After user creation, instantly call the password reset endpoint:

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

Why This Works

This method bypasses the complexity of custom token generation logic by leveraging the built-in password reset endpoint of DRF. By doing so, the correct token is generated and included in the email sent to the user:

Simplicity: No need for custom token management logic.

Immediate Processing: The reset email is generated right after user creation.

Reliability: Using the native endpoint ensures that the system's state remains consistent.

Conclusion

When facing issues related to invalid tokens during password resets in Django, it's essential to evaluate the flow of operations. By directly using the password reset endpoint after user creation, you can ensure that the link sent to users is valid, allowing them to reset their passwords without hassle. Implement the solution today and enhance the onboarding experience for new users in your application!