What is FastAPI?
FastAPI is a web framework that is used to build APIs with Python 3.7+ and a standard type hint. It is used to specifically create RESTful APIs. It also provides automation for producing documentation for the service you created. It’s currently used by Uber, Microsoft, Explosion AI and others.
Key Features
- Built-in Security: Fast API provides built-in security mechanisms through features like validation and sanitization of user input.
- Scalability: FastAPI is one of the few Python frameworks that can be used to build scalable applications.
- Automatic Data Validation: Data validation ensures that the data is up to date and FastAPI provides an automatic data validation mechanism which is much faster than traditional manual validation.
- High Performance: FastAPI is a modern framework which provides performance at par with NodeJS and Go
Flask vs. FastAPI: Which One to Choose
Let’s understand the difference between Flask and FastAPI using a real-world analogy. Imagine you are hosting a party where Flask and FastAPI are the two methods using which you serve your guests. Flask is like a buffet-style approach where all the options are laid on the table and each individual chooses the service they want to use. Your role is to prepare the food or the backend logic for the application and serve it and then it is up to the guests or the clients how they wish to interact with them.
On the other hand, FastAPI is like a catering service where you provide a menu of options and guests place their orders. FastAPI or the catering service takes care of all the behind-the-scenes tasks and ensures to provide a fast and efficient experience to the clients. In this article, we’ll discuss the differences between Flask and FastAPI and which one to choose, leaving the choice to the user to decide which framework suits them for their application needs.
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