Flask JWT Authentication App

A simple Flask application with user authentication using JWT (JSON Web Tokens) and MySQL for data storage.

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🔧 Features

• User registration and login
• JWT-based authentication
• MySQL database integration
• Password hashing (using Werkzeug)
• Utility functions (utils.py)
• Environment-safe configuration

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🏗️ Project Structure

/project-root ├── app.py ├── requirements.txt ├── .env ├── /templates │ ├── index.html │ ├── login.html │ └── dashboard.html ├── /static │ └── cal.jpg (optional) └── /Project └── utils.py

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🚀 Getting Started

1. Clone the repository**

git clone https://github.com/your-username/your-repo-name.git cd your-repo-name

2. Create and activate a virtual environment (optional but recommended)

python -m venv venv source venv/bin/activate # On Windows: venv\Scripts\activate

3. Install dependencies

pip install -r requirements.txt

4. Set up configuration

Create a .env file in the project root directory to store environment variables (do not commit this file to version control).

Example .env: env Copy Edit JWT_SECRET_KEY=your-secret-key MYSQL_HOST=localhost MYSQL_USER=root MYSQL_PASSWORD="yourpassword" MYSQL_DB=mydatabase ⚠️ Note: If your password contains special characters (like #, !, or spaces), wrap it in double quotes.

This .env file is loaded automatically by the app using python-dotenv.

5. Set up the database

Using MySQL CLI or GUI

source path/to/database.sql

6. Run the app

python app.py

📫 API Endpoints (example)

Method Route Description POST /register User registration POST /login User login GET /protected JWT-protected endpoint

⚠️ Make sure to include the JWT token in the Authorization: Bearer header for protected routes.