FastAPI Request Body Validation Explained | Build POST /enquiry API with Pydantic (BeginnerTutorial)

In this video, you'll learn how to build a real-world POST API endpoint using FastAPI and Pydantic. We create a /enquiry endpoint that accepts a student's name, email, and course, then use FastAPI's built-in validation to automatically reject invalid requests. By the end of this tutorial, you'll understand: What is a POST request? What is a request body? Creating Pydantic models Validating JSON data Using EmailStr for email validation Understanding 422 Validation Error Testing APIs using Swagger UI Common beginner mistakes This is Day 17 of the 30-Day Real Software Development Skills Sprint, where we learn practical backend development skills used in real software engineering jobs. 📌 Topics Covered: FastAPI Request Body Pydantic Models POST API Email Validation Field Validation 422 Unprocessable Entity Swagger API Testing Backend Development for Beginners 💻 Source Code: See Comment #FastAPI #Python #BackendDevelopment #RESTAPI #Pydantic #WebDevelopment #Programming #SoftwareEngineering #LearnPython #APIDevelopment