#python flask api

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Comparing FastAPI and Flask for RestAPI Development in Python

Creating web applications for any sort of project has become essential due to the functionality and capabilities they provide. Backend developers use frameworks to build the required web application APIs and improve the project’s final result.

Flask

FastAPI

Django

Our discussion today will focus on the differences between Flask and FastAPI, but you can also build RestAPIs with Django framework. Majorly, these frameworks are used in creating data science applications because these applications pose multidisciplinary challenges.   What are Micro Frameworks? Microframework is a container of code that includes features and functions. Micro frameworks decouple some features from others in a meaningful way. There are several micro frameworks you can choose from, but the decoupling part of every micro-framework might differ from one another. What is Flask? Flask is a Python module and a web framework letting developers build web applications easily. It comes with an easy to extend the core and some amazing features like;

URL routing

Template engine

Flask is based on Web Server Gateway Interface (WSGI), which has been the standard in Python for building web applications for a long time. But later, we will discuss that WSGI is one of the reasons why developers are shifting to FastAPI. What is FastAPI?  FastAPI has quickly replaced Flask in several use cases due to its high performance and ability to build APIs. The key component of this web application development technology is that it is fast to code and is known to increase the coding speed by 200% to 300%. 

There are multiple modules in FastAPI that make writing applications easier without paying attention to protocol management, thread management, and other related components.  ​ Microframeworks like Flask and FastAPI provide minimalistic development capabilities and are used for smooth communication between the frontend and backend systems. Here’s a guide on the difference between Flask and FastAPI, with their pros and cons.