FastAPI Crash Course in Tamil 🔥 | Build REST API with Python

Welcome to the ultimate FastAPI crash course — perfect for beginners and intermediate Python developers who want to master FastAPI and build a real-world REST API from scratch! 🚀
In this full FastAPI tutorial, you’ll learn how to:
• Set up a FastAPI project structure like a pro
• Connect FastAPI with a PostgreSQL database using SQLAlchemy ORM
• Create Pydantic models for data validation
• Build CRUD endpoints (Create, Read, Update, Delete) for a Todo App
• Debug common FastAPI and SQLAlchemy issues
• Deploy your FastAPI app on Render (Free Hosting)
• Explore Swagger UI for API documentation
By the end of this crash course, you’ll have a fully functional FastAPI project ready for production and deployment 💪

Download: https://github.com/jvlcode/fastapi-todo

⏱️ Timestamps (Chapters)
• 00:00 – Introduction to FastAPI Crash Course
• 02:12 – Prerequisites for FastAPI Development
• 04:01 – What Is FastAPI? Overview & Benefits
• 05:44 – FastAPI Project Setup: Folder Structure & Tools
• 11:33 – Environment Configuration (.env Setup)
• 16:04 – Connecting FastAPI to PostgreSQL Database
• 20:34 – Creating the Todo Model with SQLAlchemy
• 25:51 – Building Pydantic Schemas for Todo API
• 31:53 – Implementing Create Todo Endpoint (POST Method)
• 43:11 – Running FastAPI App & Testing with Postman
• 47:46 – Fixing Schema Validation Error in FastAPI
• 50:21 – Resolving Database Connection String Issues
• 52:03 – Debugging Table Creation Errors in SQLAlchemy
• 54:51 – Fixing Data Refresh Issues in FastAPI DB
• 58:45 – Fetching All Todos (GET Endpoint)
• 01:02:36 – Get Single Todo by ID (GET Endpoint)
• 01:09:22 – Update Todo Item (PUT Method)
• 01:17:28 – Delete Todo Item (DELETE Method)
• 01:21:22 – Deploying FastAPI App to Render (Step-by-Step)
• 01:41:22 – Exploring Swagger UI & API Docs
• 01:45:32 – Final Thoughts & Conclusion

🔥 What You’ll Learn
✅ FastAPI basics and advanced concepts
✅ REST API development with Python
✅ SQLAlchemy ORM integration
✅ Pydantic data validation
✅ PostgreSQL database configuration
✅ API testing with Postman
✅ Error handling & debugging
✅ Deployment using Render

🧩 Tech Stack Used
• FastAPI – Modern Python web framework
• SQLAlchemy ORM – For database operations
• PostgreSQL – Relational database
• Pydantic – Data validation
• Uvicorn – ASGI server for FastAPI
• Render – Free cloud deployment

📈 Perfect For
• Python developers learning web APIs
• Backend developers exploring modern frameworks
• Anyone preparing for FastAPI projects or interviews
• Students & professionals building portfolio projects


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