User Authentication System with Flask, PostgreSQL, MongoDB, and Redis

This is a user authentication system built with Flask, PostgreSQL, MongoDB, and Redis. The system provides secure user registration, login, JWT-based session management, and logging of user activities. Redis is used for session caching, and MongoDB logs all login attempts.

Features

• User Registration: Users can register with a username, email, and password. Passwords are securely hashed and stored.
• User Login: Users can log in with their username/email and password, and a JWT token is generated for session management.
• Session Management: Redis is used to cache session data, making it fast and scalable.
• Login Logging: All successful login attempts are logged in MongoDB, including the timestamp and IP address.
• Protected Routes: Certain routes, like the user profile, require authentication using JWT tokens.

Requirements

• Python 3
• PostgreSQL
• MongoDB
• Redis

Installation

1. Clone the repository:

   git clone https://github.com/your-username/user-auth-system.git
   cd user-auth-system

2. Create a virtual environment:

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

3. Install dependencies:

   pip install -r requirements.txt

4. Create and update the .env file with your configuration:

   DATABASE_URI=postgresql://username:password@localhost:5432/user_auth_db
   MONGO_URI=mongodb://localhost:27017
   REDIS_URL=redis://localhost:6379/0
   
   MONGO_DB=user_auth_mongo
   SECRET_KEY=your-secret-key
   JWT_SECRET_KEY=your-jwt-secret-key

Replace the placeholders with your actual credentials.

Run the application:

flask run

Endpoints

• POST /register: Register a new user with username, email, and password.
• POST /login: Log in with username or email and password.
• GET /profile: Get the user's profile information. Requires a valid JWT token.

Usage

1. Register a new user via /register.
2. Log in to obtain a JWT token via /login.
3. Use the token to access protected routes like /profile.