FastAPI is a modern, fast web framework for building APIs with Python. In this Tutorial we have a look at some of its key features and then we build our first web application with it.

The key features are:

• Fast: Very high performance, on par with NodeJS and Go (thanks to Starlette and Pydantic). One of the fastest Python frameworks available.
• Fast to code: Increase the speed to develop new features.
• Fewer bugs.
• Easy and intuitive.
• Short: Minimize code duplication.
• Robust: Get production-ready code.
• Standards-based: Based on OpenAPI and JSON Schema.
• Automatic interactive documentation.
• Automatic type validation.

They have an awesome documentation with many tutorials that are easy to follow, so I recommend to check out the official website:

• https://fastapi.tiangolo.com/
• https://fastapi.tiangolo.com/tutorial/first-steps/
• https://fastapi.tiangolo.com/async/
• https://github.com/tiangolo/fastapi