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.

Similar Reads

What is Flask?

Flask is a micro web framework that is used to build lightweight web applications with ease. The microframework word comes from the fact that it does not require any particular library or framework for building applications. It provides components like routing, request handling, etc. Flask is currently used by Netflix, Lyft or Zillow....

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....

Flask vs FastAPI: Detailed Comparison

Flask and FastAPI are both Python web frameworks that can be used to build web applications and APIs. However, there are some key differences between the two frameworks....

Pros and Cons of Flask and FastAPI

Pros of Flask...

Flask vs FastAPI: Key Differences

Aspects Flask FastAPI Performance Good for medium-sized applications but slow for complex applications. Faster and better than Flask. Use Case Web applications APIs HTTP Methods @app.route(“/”, methods = [“GET”])@app.route(“/”, methods = [“POST”]) @app.get(“/”)@app.post(“/”) Data Validation No validation support. In-built data validation. Error Message Display Displayed in HTML format. Displayed in JSON format. Documentation Support Supports manual documentation. Supports automatic documentation. Asynchronous tasks Not inherent to the asynchronous design. Inherent to the asynchronous design. Community Large community. Smaller community....

Conclusion

In conclusion, we discussed the differences between Flask and FastAPI. Flask is a micro framework, while FastAPI is a full-stack framework. FastAPI is much better when it comes to performance and speed. Flask, on the other hand, is better when it comes to simpler applications. The features that make FastAPI a better choice for complex and data-intensive applications are dependency injections, automatic documentation support, data validation and asynchronous programming. Although, FastAPI has a smaller community as compared to Flask its high performance and efficiency have made it very popular in the market....

Contact Us