FastAPI

Lesson in the Python Roadmap · Stage 21: File Handling

Last updated 14 September 2026

What is FastAPI?

FastAPI is a modern Python web framework used for building APIs with high performance and automatic documentation. It leverages Python type hints for request validation, serialization, and editor support, making API development faster and less error-prone. FastAPI is commonly used for backend services, microservices, and machine learning model deployment due to its speed and ease of use.

Study this in the interactive course See the whole Python roadmap

Free resources to learn FastAPI

Official docsFastAPI Documentation
VideoCreate an API with Fast-API (Full 19 Hour Course)

FastAPI: common questions

Can I learn FastAPI in Hindi?

This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain FastAPI in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.

Is this FastAPI tutorial for beginners?

It is lesson 78 of 85 in the free Python roadmap, in stage 21, File Handling. If you are new to Python, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.