What is FastAPI? Complete Beginner to Advanced Explanation | FastAPI Interview Questions 2026

In this lecture, we deeply understand What is FastAPI from beginner to advanced level.

FastAPI is a modern, high-performance Python web framework used to build scalable APIs. In this video, I explain:

What FastAPI actually is

Why it is called high-performance

What ASGI means

How async/await works

Role of Starlette in FastAPI

Role of Pydantic in data validation

Automatic Swagger & OpenAPI documentation

Why companies prefer FastAPI over traditional frameworks

This lecture is perfect for:

Python Developers

Backend Engineers

Students preparing for FastAPI interviews

Developers moving from Flask/Django to modern APIs

By the end of this video, you will clearly understand the core foundation of FastAPI like a senior backend developer.

Stay tuned for the full FastAPI Interview Series 🚀

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Видео What is FastAPI? Complete Beginner to Advanced Explanation | FastAPI Interview Questions 2026 канала Code With Hafiz Ammad