Flask Redis AWS-SES Account Registration Confirmation

This project demonstrates how to build a Flask application to handle user registration and email confirmation using Redis Queue (RQ) for background job processing and Amazon Simple Email Service (SES) for sending emails. The application allows users to register, receive a confirmation email, and confirm their email address.

Table of Contents

1. Project Description
2. Email confirmation Workflow
3. Features
4. Requirements
5. Installation
6. Running the Application
7. Configuration

Project Description

The application provides a simple user registration flow with email confirmation. It uses Redis Queue to handle the email sending process in the background, ensuring that the main application remains responsive. Amazon SES is used to send the confirmation emails, leveraging its reliability and scalability.

Email Confirmation Workflow

1. User Registration:

   • User fills out the registration form with their email address and submits it.
   • The application creates a new user record in the database with a unique confirmation token and sets the email as unconfirmed.

2. Sending Confirmation Email:

   • The application enqueues a job to send a confirmation email to the user using Redis Queue.
   • A background worker processes the job and sends the email via Amazon SES.

3. Email Confirmation:

   • The user receives the email with a confirmation link.
   • The user clicks the confirmation link, which redirects to the application.
   • The application verifies the confirmation token and marks the email as confirmed.

Features

• User Registration: Simple user registration form with email input validation.
• Email Confirmation: Automated email confirmation workflow using Redis Queue and Amazon SES.
• Background Job Processing: Efficiently handles background tasks using Redis Queue.
• Email Sending: Sends emails reliably using Amazon SES.
• RQ Dashboard: Provides a web-based interface to monitor Redis Queue jobs, workers, and job statuses.

Requirements

• Python 3.10+
• Flask
• Docker
• AWS account
• Amazon SES credentials

Installation

Follow these steps to set up the project on your local machine:

1. Clone the repository:

   Using HTTPS:

   git clone https://github.com/yourusername/flask-redis-aws-registration-confirmation.git
   cd flask-redis-aws-registration-confirmation

   Using SSH:

   git clone [email protected]:yourusername/flask-redis-aws-registration-confirmation.git
   cd flask-redis-aws-registration-confirmation

2. Create and activate a virtual environment:

   python3 -m venv .venv
   source .venv/bin/activate  # On Windows use `.venv\Scripts\activate`

3. Install the dependencies:

   pip install -r requirements.txt

4. Set up your environment variables: Create a .env file in the project root and add the following variables:

   FLASK_DEBUG=1
   APP_SETTINGS=project.server.config.DevelopmentConfig
   
   SECRET_KEY=your_secret_key
   
   DATABASE_URL=db_url
   DATABASE_TEST_URL=test_db_url
   POSTGRES_USER=postgres_user
   POSTGRES_PASSWORD=postgres_password    
   
   REDIS_URL=redis://localhost:6379/0
   
   AWS_ACCESS_KEY=your_aws_access_key_id
   AWS_SECRET_ACCESS_KEY=your_aws_secret_access_key
   SES_REGION=your_aws_region
   [email protected]
   

Running the Application

1. Start the Flask application:

   docker-compose up -d

2. Setup database:

   docker-compose exec users python manage.py create_db

3. Access the application: Open your web browser and go to http://127.0.0.1:5003.

4. Access the RQ Dashboard: Open your web browser and go to http://127.0.0.1:9181.

Configuration

Make sure to set up your AWS SES credentials and verify your sender email in the AWS SES console.