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Django REST framework VS FastAPI

Compare Django REST framework VS FastAPI and see what are their differences

Django REST framework logo Django REST framework

Django REST framework is a toolkit for building web APIs.

FastAPI logo FastAPI

FastAPI is an Open Source, modern, fast (high-performance), web framework for building APIs with Python 3.6+ based on standard Python type hints.
  • Django REST framework Landing page
    Landing page //
    2021-09-18
  • FastAPI Landing page
    Landing page //
    2023-05-14

Django REST framework features and specs

  • Rich Feature Set
    Django REST framework (DRF) offers a comprehensive toolkit for building Web APIs, including serialization, authentication, and viewsets, which facilitate the creation of complex RESTful services with minimal effort.
  • Integration with Django
    DRF seamlessly integrates with Django's ORM and associated components, allowing for a coherent and efficient development process that leverages all of Djangoโ€™s features and tools.
  • Robust Documentation
    DRF has extensive, clear, and well-structured documentation, which helps developers understand its features, integrations, and best practices quickly.
  • Community Support
    A large and active community supports DRF, meaning developers can find plenty of resources, tutorials, third-party packages, and forums for troubleshooting and enhancing their applications.
  • Flexibility
    DRF provides a lot of flexibility through class-based views and a highly customizable architecture, allowing developers to tweak their APIs to meet specific project requirements.
  • Authentication Options
    DRF supports multiple built-in authentication methods such as token-based authentication, OAuth, and JWT, along with the ability to create custom authentication mechanisms.

Possible disadvantages of Django REST framework

  • Learning Curve
    Although DRF is powerful, it comes with a steep learning curve, especially for beginners who are not familiar with Django or RESTful concepts, which can lead to a longer onboarding process.
  • Performance Overhead
    The abstraction and additional features provided by DRF can introduce some performance overhead, making raw Django views or other minimal frameworks sometimes more suitable for highly performance-sensitive applications.
  • Complexity
    For small projects or simple APIs, DRF might be overkill due to its inherent complexity and the numerous options it provides, which can slow down initial setup and development.
  • Tight Coupling with Django
    DRF is tightly coupled with Django, meaning that itโ€™s not a suitable choice if you are looking to use a different web framework or need more flexibility in the choice of the underlying web framework.
  • Documentation Depth
    While the documentation is generally excellent, some advanced features are not as deeply covered, which can make implementing more complex customizations challenging without diving into the source code.

FastAPI features and specs

  • High Performance
    Built on Starlette and Pydantic, FastAPI is one of the fastest frameworks for Python, providing high performance due to its asynchronous request handling.
  • Automatic Interactive API Documentation
    FastAPI automatically generates interactive API documentation via Swagger UI and ReDoc, which are very helpful for development and testing.
  • Type Checking and Validation
    With Pydantic models and Python type hints, FastAPI provides automatic data validation and type checking, reducing the chance of runtime errors.
  • Ease of Use
    Its syntax and design make it easy to learn for Python developers, offering a smooth development experience while reducing boilerplate code.
  • Asynchronous Support
    FastAPI supports asynchronous programming, allowing for better performance for I/O-bound operations, making it optimal for handling many simultaneous connections.
  • Extensive Documentation
    It has comprehensive and well-structured documentation, which is very useful for both beginners and advanced users.
  • Community and Ecosystem
    FastAPI has a growing community and ecosystem, with many plugins and integrations available to extend its functionality.

Possible disadvantages of FastAPI

  • Learning Curve for Asynchronous Programming
    Although FastAPI itself is easy to learn, grasping the concepts of asynchronous programming in Python can be challenging for beginners.
  • Complex Dependencies
    Using Pydantic for advanced validation can make the request models complex, requiring a deeper understanding of Pydantic and its functionalities.
  • Early Stage Libraries
    Some third-party libraries and extensions specifically tailored for FastAPI might still be in early stages of development and lack long-term stability.
  • Limited Real-World Examples
    Although the documentation is extensive, there might be limited real-world examples and case studies readily available compared to more mature frameworks.
  • Deployment Complexity
    Deploying FastAPI applications might be more complex in comparison to traditional synchronous frameworks, mainly due to the need for asynchronous server setups.

Analysis of Django REST framework

Overall verdict

  • Yes, Django REST Framework is considered a good choice for building APIs, especially if you are already using Django for your web application. It offers a well-designed, comprehensive toolkit that streamlines the process of API development.

Why this product is good

  • Django REST Framework (DRF) is widely appreciated for its ease of use, extensive documentation, and flexibility. It integrates seamlessly with Django, a popular web framework, offering powerful features such as authentication, serialization, and viewsets. DRF also supports RESTful API architecture, which is a standard in web development, allowing developers to build robust APIs efficiently. Its strong community support and numerous plugins extend its capabilities, making it a solid choice for both small and large projects.

Recommended for

  • Developers familiar with Django who want to build APIs.
  • Projects that require a robust and scalable API solution.
  • Teams seeking a well-documented and community-supported framework.
  • Use cases where integration with Django's authentication and ORM features is beneficial.

Analysis of FastAPI

Overall verdict

  • FastAPI is widely regarded as a good choice, especially for applications that require high performance, scalability, and modern Python features. It is suitable for both simple and complex projects, making it a versatile tool in the web development ecosystem.

Why this product is good

  • FastAPI is a modern, fast (high-performance), web framework for building APIs with Python 3.7+ based on standard Python type hints. It is built on top of Starlette for web framework capabilities and Pydantic for data validation and settings management. FastAPI is known for its excellent performance, automatic generation of interactive API documentation (with Swagger and Redoc), and support for asynchronous programming. Developers appreciate its ease of use, detailed documentation, and helpful error messages.

Recommended for

  • Developers building RESTful APIs
  • Teams looking for a high-performance ASGI-based web framework
  • Projects that require asynchronous programming capabilities
  • Applications needing automatic generation of interactive API documentation
  • Python developers who prefer utilizing type hints for code clarity and validation

Django REST framework videos

Django Vs Django Rest Framework 2020

More videos:

  • Review - Getting Started With Django REST Framework

FastAPI videos

FastAPI from the ground up

More videos:

  • Tutorial - 30 Days of Python - Day 14 - Web App with Flask, FastAPI, ngrok, and Invictify - Python TUTORIAL
  • Review - [PT] Python - API com FastAPI - Chat | twitch.tv/codeshow

Category Popularity

0-100% (relative to Django REST framework and FastAPI)
API Tools
29 29%
71% 71
Developer Tools
3 3%
97% 97
API Management
100 100%
0% 0
APIs
100 100%
0% 0

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Django REST framework and FastAPI

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FastAPI Reviews

  1. Kurslog team
    ยท Working at Kurslog ยท

    When our backend team needs to build services for data parsing, aggregators, or high-load APIs, FastAPI is our absolute go-to choice. It completely lives up to its name-development speed is outstanding.

    The combination of Pydantic for data validation and built-in async support keeps our shared codebase clean, strictly typed, and reliable. But the biggest highlight for our cross-functional team is the automatic generation of interactive OpenAPI (Swagger) documentation. Our frontend and mobile developers no longer have to wait for backend engineers to manually update API docs; everything stays perfectly in sync automatically. It has drastically improved our team's communication and delivery speed.

    ๐Ÿ Competitors: Django, Flask, ExpressJS, Nest.js, Spring Boot
    ๐Ÿ‘ Pros:    Blazing fast performance (on par with nodejs and go)|Native asynchronous support out of the box|Automatic, interactive documentation generation (swagger/redoc)|Strict typing and data validation with pydantic
    ๐Ÿ‘Ž Cons:    Smaller plug-and-play ecosystem compared to older frameworks like django|Requires our architects to design the project structure and directory layout from scratch

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FastAPI, as the name hints, is a swift mover. Built on Starlette, itโ€™s all about speed and performance with Python. Crafting API masterpieces at the speed of light, now thatโ€™s something.
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Since its release in 2018, it has rapidly gained popularity due to its great performance and simplicity. In fact, according to PyPi Stats, FastAPI has over 9 million monthly downloads, surpassing even full-stack frameworks like Django.
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myapp/ is the main directory of your FastAPI application. It includes all the other files and directories needed for the application.static/ is a directory used to store static assets such as CSS, JavaScript, and image files. These assets are served directly by the web server and are typically used to add visual styling and interactivity to the application.css/, img/, js/...
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Top 5 Back-End Frameworks to Consider for Web Development in 2021
FastAPI is a modern, fast (high-performance), web framework for building APIs with Python 3.6+ based on standard Python type hints. It is fast when compared to other major Python frameworks like Flask and Django. FastAPI gives great flexibility to fulfill businessesโ€™ API needs in todayโ€™s evolving world.

Social recommendations and mentions

Based on our record, FastAPI seems to be a lot more popular than Django REST framework. While we know about 311 links to FastAPI, we've tracked only 3 mentions of Django REST framework. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Django REST framework mentions (3)

  • API framework choice?
    Django Rest Framework seems like the most mature and works great with Django. But its strength, if I understand correctly, is for auto-creating all the necessary endpoints for manipulating models, which might be useful for data entry applications. I know that it's super flexible and probably my use case will be covered, but it seems that this it might get complicated. Source: about 4 years ago
  • Django REST difference between permission classes and authentication classes
    There is one last thing I'm a little confused on with Django Rest Framework and that's the different between permission classes and authentication classes. Source: about 4 years ago
  • How to disable admin-style browsable interface of django-rest-framework?
    I am using django-rest-framework. It provides an awesome Django admin style browsable self-documenting API. But anyone can visit those pages and use the interface to add data (POST). How can I disable it? Source: almost 5 years ago

FastAPI mentions (311)

  • Shipping Sovereign SDK: Cryptographic Forensic Receipts and the End of the AI "Prose Tax"
    The Sovereign SDK is a Python-native framework designed to minimize prose overhead while generating ironclad, cryptographic execution receipts for AI agents, complete with drop-in FastAPI/Starlette ASGI middleware. - Source: dev.to / about 2 months ago
  • 5-Minute AI Jobs and Closed Tabs โ€” Why We Built Replay-Then-Tail SSE
    We had a feature in production where a single user request could run for five-plus minutes โ€” fetch documents, chunk them, hit an LLM per chunk, synthesize a final answer. We did the obvious thing first: a FastAPI handler that ran the pipeline and streamed progress back to the browser over Server-Sent Events. - Source: dev.to / 3 months ago
  • FastAPI With LangChain and MongoDB
    FastAPI is a Python framework for building APIs quickly, efficiently, and with very little code. - Source: dev.to / 3 months ago
  • I Built A " CrowdSense AI " : A Scalable, Context-Aware Platform for Smart Stadiums
    Backend: Python-based FastAPI for its asynchronous I/O capabilities and rapid JSON serialization. - Source: dev.to / 3 months ago
  • Async PyMongo in FastAPI
    FastAPI is a high-performance web framework that is production-ready and designed for building APIs in python, with roots embedded in asynchronous programming. It embraces Pythonโ€™s asyncio model as its core principle rather than treating it as optional. This design choice gives FastAPI leverage for I/O bound workloads such as db access, external API calls and real-time data streaming. - Source: dev.to / 3 months ago
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What are some alternatives?

When comparing Django REST framework and FastAPI, you can also consider the following products

Postman - The Collaboration Platform for API Development

Flask - a microframework for Python based on Werkzeug, Jinja 2 and good intentions.

Amazon API Gateway - Create, publish, maintain, monitor, and secure APIs at any scale

ExpressJS - Sinatra inspired web development framework for node.js -- insanely fast, flexible, and simple

Apiary - Collaborative design, instant API mock, generated documentation, integrated code samples, debugging and automated testing

Django - The Web framework for perfectionists with deadlines