1. Dockerfile:

   • You’ve added RUN apt-get update && apt-get install -y postgresql-client && rm -rf /var/lib/apt/lists/*, which correctly installs psql. Great!

2. docker-compose up --build Output:

   • The build completed successfully, and all containers (app, db, redis, rabbitmq) are running. No errors in the output—perfect!

3. docker-compose exec app python manage.py dbshell:

   • The command opened a PostgreSQL shell (psql) successfully, confirming the database connection is working with DATABASE_URL=postgres://postgres:postgres@db:5432/user_auth_db. Excellent!

4. API Files:

   • accounts/serializers.py, accounts/views.py, accounts/urls.py, and user_auth_project/urls.py match the code I provided. They’re correctly set up for the login/register system, email verification, and password reset.

5. .env File:

   • You didn’t share the updated .env with the corrected password, but based on the successful dbshell connection, I assume you fixed it to DATABASE_URL=postgres://postgres:postgres@db:5432/user_auth_db. Please confirm this in your next response.

Since everything is set up correctly, we can proceed to test the API endpoints and ensure Celery with RabbitMQ works for email verification. We’ll also address any minor tweaks (like the .env confirmation) and prepare for testing.

Let’s test the API endpoints and ensure Celery/RabbitMQ handles email verification asynchronously.

1. Test API Endpoints:

   • Use a tool like curl, Postman, or httpie to test the endpoints. Make sure docker-compose up is running in one terminal. Open another terminal for testing:

     • Register a User:

       curl -X POST http://localhost:8000/api/register/ -H "Content-Type: application/json" -d '{"email": "[email protected]", "username": "user", "password": "securepassword123"}'

       • Expected response: {"message": "User registered. Check your email for verification code.", "user_id": 1} (Note: Email won’t actually send yet because we need to configure Celery properly).

     • Verify Email:

       curl -X POST http://localhost:8000/api/verify-email/ -H "Content-Type: application/json" -d '{"user_id": 1, "code": "123456"}'

       • Expected response: {"message": "Email verified successfully."} (if the code matches and hasn’t expired).

     • Login:

       curl -X POST http://localhost:8000/api/login/ -H "Content-Type: application/json" -d '{"email": "[email protected]", "password": "securepassword123"}'

       • Expected response: {"message": "Login successful."} (after email verification).

     • Request Password Reset:

       curl -X POST http://localhost:8000/api/password-reset/ -H "Content-Type: application/json" -d '{"email": "[email protected]"}'

       • Expected response: {"message": "Password reset link sent to your email."} (email won’t send yet).

     • Confirm Password Reset:

       curl -X POST http://localhost:8000/api/password-reset/confirm/ -H "Content-Type: application/json" -d '{"token": "token-uuid-from-email", "new_password": "newsecurepassword123"}'

       • Expected response: {"message": "Password reset successful."} (if the token is valid and hasn’t expired).

   • Note: For now, email sending will fail silently (fail_silently=True) because we need to configure Celery/RabbitMQ properly. We’ll address that next.

2. Configure Celery for Email Verification:

   • Ensure Celery is running to handle background tasks (like send_verification_email). We already set up Celery in settings.py and views.py, but we need to start a Celery worker.
   • In a new terminal, run:

     docker-compose exec app celery -A user_auth_project worker --loglevel=info

   • This starts a Celery worker in the app container, listening to RabbitMQ for tasks. Keep this terminal running.

3. Test Email Verification Again:

   • Repeat the registration test (curl -X POST http://localhost:8000/api/register/ ...) to trigger the send_verification_email task. Check the Celery worker logs to ensure the task is processed.
   • Note: Emails won’t send unless your Gmail SMTP settings (EMAIL_HOST_USER and EMAIL_HOST_PASSWORD in .env) are correctly configured and Gmail allows less secure apps or you’ve set up an app-specific password.

4. Verify RabbitMQ and Celery Integration:

   • Open the RabbitMQ management UI at http://localhost:15672 (username: guest, password: guest) to check if tasks are queued.
   • Ensure the Celery worker logs show tasks being received and processed.

• Confirmation that you updated .env to DATABASE_URL=postgres://postgres:postgres@db:5432/user_auth_db (just the line if updated).
• Terminal output from testing at least one API endpoint (e.g., registration) using curl or another tool.
• Terminal output from docker-compose exec app celery -A user_auth_project worker --loglevel=info (first 20-30 lines or until a task is processed).
• Any errors or issues you encounter during testing.

• If API endpoints work and Celery/RabbitMQ handle tasks successfully: We’ll finalize the project, test scalability, and ensure it can handle 10k+ users.
• If there are errors: We’ll troubleshoot (e.g., email configuration, Celery setup, or API issues).

You’re doing incredibly well—let’s test the API and get email verification working!