Build REST APIs with Pydantic Validation - Python FastAPI Tutorial -#38

Learn FastAPI Basics! In this tutorial, you will learn how to build REST APIs using FastAPI, a modern Python web framework with automatic validation. What you will learn: - Creating a FastAPI application with app decorators - Defining GET endpoints with path and query parameters - Using Pydantic BaseModel for request validation - Handling POST requests with JSON bodies - Raising HTTPException for proper error responses - Building async endpoints with async def - Implementing full CRUD (Create, Read, Update, Delete) - Testing APIs with TestClient (no server needed) - Automatic 422 validation errors for missing fields - Using model_dump for Pydantic v2 serialization Timestamps: 0:00 - Introduction 0:33 - FastAPI Basics Explained 1:00 - FastAPI Basics Demo 3:58 - Pydantic Models Explained 4:25 - Pydantic Models Demo 7:52 - Employee API Explained 8:19 - Employee API Demo 12:45 - Recap 13:25 - End Source code: https://github.com/GoCelesteAI/python_fastapi_basics Previous: Lesson 37 - CLI Applications https://youtu.be/PLACEHOLDER_L37 Next: Lesson 39 - Flask Coming soon! --- Python Tutorial for Beginners playlist - Learn Python from scratch with hands-on coding demos. #Python #FastAPI #PythonTutorial #RESTAPI #Pydantic #CRUD #LearnPython #PythonForBeginners #CodingTutorial #WebDevelopment Tags Python, FastAPI, REST API, Pydantic, CRUD, Python Tutorial, BaseModel, HTTPException, TestClient, async, web framework, Python for beginners, learn Python, coding tutorial, CelesteAI, API development