Django Ninja - Fast Django REST framework

django, django-ninja, openapi, pydantic, python, rest-api, swagger, swagger-ui
pip install django-ninja==0.20.0


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Fast to learn, fast to code, fast to run

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Django Ninja - Fast Django REST Framework

Django Ninja is a web framework for building APIs with Django and Python 3.6+ type hints.

Key features:

  • Easy: Designed to be easy to use and intuitive.
  • FAST execution: Very high performance thanks to Pydantic and async support.
  • Fast to code: Type hints and automatic docs lets you focus only on business logic.
  • Standards-based: Based on the open standards for APIs: OpenAPI (previously known as Swagger) and JSON Schema.
  • Django friendly: (obviously) has good integration with the Django core and ORM.
  • Production ready: Used by multiple companies on live projects (If you use django-ninja and would like to publish your feedback, please email

Django Ninja REST Framework



pip install django-ninja


In your django project next to create new file:

from ninja import NinjaAPI

api = NinjaAPI()

def add(request, a: int, b: int):
    return {"result": a + b}

Now go to and add the following:

from .api import api

urlpatterns = [
    path("api/", api.urls),  # <---------- !

That's it !

Now you've just created an API that:

  • receives an HTTP GET request at /api/add
  • takes, validates and type-casts GET parameters a and b
  • decodes the result to JSON
  • generates an OpenAPI schema for defined operation

Interactive API docs

Now go to

You will see the automatic interactive API documentation (provided by Swagger UI or Redoc):

Swagger UI

What next?