Test Supabase PostgreSQL Database Connection Using Python | AI Expense Agent Project

🚀 *Test the Supabase PostgreSQL Database Connection Using Python* Welcome back to our 60-Day AI Expense Agent Development Series! In this video, we will learn how to test the connection between our Python backend and Supabase PostgreSQL database before creating expense tables or implementing application features. Simply configuring the database connection URL does not guarantee that the backend can successfully connect to the database. Therefore, we will create a small Python script to verify the connection. 📚 *What You'll Learn in This Video:* ✅ Create a `test_db.py` file inside the backend folder ✅ Load environment variables using `python-dotenv` ✅ Read `DATABASE_URL` from the `.env` file ✅ Create a SQLAlchemy database engine ✅ Connect Python to Supabase PostgreSQL ✅ Execute a SQL query using `SELECT version(), current_database()` ✅ Retrieve the database name and PostgreSQL version ✅ Handle database connection errors ✅ Clean up database resources using `engine.dispose()` ✅ Run the Python script and verify the connection 🛠️ *Technologies Used:* Python Supabase PostgreSQL SQLAlchemy python-dotenv psycopg 💻 *Install Required Packages:* Run the following command in your backend virtual environment: `pip install sqlalchemy python-dotenv "psycopg[binary]"` ▶️ *Run the Database Connection Test:* `python test_db.py` If the connection is successful, the terminal will display a success message along with the database name and PostgreSQL version. 🔐 *Security Reminder:* Keep your `DATABASE_URL` and database password inside the backend `.env` file. Never expose database credentials in your React frontend or commit your `.env` file to GitHub. 🎯 *About This Project Series:* We are building a practical AI-powered Expense Management application step by step using React, Python, PostgreSQL, APIs, and AI integration. In the upcoming steps, we will continue building the backend and implementing database functionality for our application. If you find this tutorial helpful: 👍 Like the video 💬 Comment if you encounter any database connection issues 🔔 Subscribe for more practical coding tutorials Let's build something real with React, Python, PostgreSQL, and AI! 🚀 #Supabase #PostgreSQL #Python #SQLAlchemy #ExpenseManagement #AITutorials #DatabaseConnection