FastAPI: Build RESTful, Fast APIs With Python

Great Python web frameworks make it easy to create high functioning and scalable applications. Many web frameworks are heavy, monolithic (old) frameworks that make modern-day development practices difficult to solve that are not optimal for creating fast APIs. With the rise of RESTful web APIs (Representational State Transfer – Application Programming Interfaces), there is not a better time to learn how to create secure and maintainable applications. FastAPI is a modern Python web framework for building APIs that is getting rid of the old ways of doing development. Just one of the many things Python is used for and does well.

FastAPI benefits

What are the benefits of using FastAPI? I am glad you asked. There are many technical, user, and development benefits when choosing FastAPI to be your go-to framework for modern Python web development. Here are some quick key notes:

FastAPI is FAST

Since FastAPI is built off of Starlette and Pydantic, the performance of FastAPI is off the charts. In fact, FastAPI’s performance has been tested to be on par with NodeJS. 

FastAPI makes creating APIs simple

Developing APIs used to be a very technical process that required a tremendous amount of development time. FastAPI has helped shift that mindset. FastAPI is an intuitive framework that allows you to write production worthy RESTful APIs in the matter of minutes.

FastAPI comes with interactive documentation 

When you create a FastAPI application, an interactive Swagger UI documentation is created automatically. This increases the performance of Python developers, as they no longer have to handle documentation. This means developers can focus on one thing, the code, and let FastAPI handle everything else. 

Good to know RESTful API information

RESTful APIs communicate by way of HTTP (Hypertext Transfer Protocol) to perform standard functionalities, which include creating, reading, updating, and deleting a resource. These are also known as the CRUD operations. To correspond with these CRUD operations, HTTP has request methods that provide us the action counterpart. These HTTP counterparts are called GET, POST, PUT, PATCH, and DELETE. A list of the CRUD operations aligned with the HTTP request method counterparts include:

1. Create – Uses the HTTP POST request method.
2. Read – Uses the HTTP GET request method.
3. Update – Uses the PUT/PATCH request method.
4. Delete – Uses the DELETE request method.

Frequently Asked Questions

What is the key takeaway of "FastAPI: Build RESTful, Fast APIs With Python"?

FastAPI is a web framework for developing modern RESTful and fast APIs using Python. Learn how to create FastAPI applications to modernize code. This guide provides structured insights, proven methodologies, and actionable execution steps for modern professionals.

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