Comprehensive OpenAPI schema generator for Django based on pydantic

Overview

🗡️ Djagger

Package Badge Pypi Badge

Automated OpenAPI documentation generator for Django. Djagger helps you generate a complete and comprehensive API documentation of your Django project by utilizing pydantic to create schema objects for your views.

Djagger is designed to be:

🧾 Comprehensive - ALL aspects of your API should be document-able straight from your views, to the full extent of the OpenAPi 3.0 specification.

👐 Unintrusive - Integrate easily with your existing Django project. Djagger can document vanilla Django views (function-based and class-based views), as well as any Django REST framework views. As long as you are using Django's default URL routing, you are good to go. You do not need to redesign your APIs for better documentation.

🍭 Easy - Djagger uses pure, unadulterated pydantic models to generate schemas. If you have used pydantic, there is no learning curve. If you have not heard of pydantic, it is a powerful data validation library that is pretty straightforward to pickup (like dataclasses). Check it out here. Either way, documenting your APIs will feel less like a chore.

Quick start

Install using pip

pip install djagger

Add 'djagger' to your INSTALLED_APPS setting like this

INSTALLED_APPS = [
    ...
    'djagger',
]

Include the djagger URLconf in your project urls.py like this if you want to use the built-in document views.

urlpatterns = [
    ...
    path('djagger/', include('djagger.urls')),
]
To see the generated documentation, use the route /djagger/api/docs. Djagger uses Redoc as the default client generator.

To get the generated JSON schema file, use the route /djagger/schema.json.

Note that the path djagger/ is required when setting this URLconf. Feel free to remove djagger.urls when you are more comfortable and decide to customize your own documentation views. The routes provided here are for you to get started quickly.

Examples

In the examples, we alias pydantic BaseModel as Schema to avoid any confusion with Django's Model ORM objects. Django REST Framework views are used for the examples.

Example GET Endpoint

from rest_framework.views import APIView
from rest_framework.response import Response

from pydantic import BaseModel as Schema

class UserDetailsParams(Schema):

    pk : int

class UserDetailsResponse(Schema):
    """ GET response schema for user details
    """
    first_name : str
    last_name : str
    age : int
    email: str

class UserDetailsAPI(APIView):

    """ Lists a given user's details.
    Docstrings here will be used for the API's description in
    the generated schema.
    """

    get_path_params = UserDetailsParams
    get_response_schema = UserDetailsResponse

    def get(self, request, pk : int):

        return Response({
            "first_name":"John",
            "last_name":"Doe",
            "age": 30,
            "email":"[email protected]"
        })

Generated documentation

UserDetailsAPI Redoc

Example POST Endpoint

from pydantic import BaseModel as Schema, Field
from typing import Optional
from decimal import Decimal

class CreateItemRequest(Schema):
    """ POST request body schema for creating an item.
    """
    sku : str = Field(description="Unique identifier for an item")
    name : str = Field(description="Name of an item")
    price : Decimal = Field(description="Price of item in USD")
    min_qty : int = 1
    description : Optional[str]

class CreateItemResponse(Schema):
    """ Post response schema for successful item creation.
    """
    pk : int
    details : str = Field(description="Details for the user")

class CreateItemAPI(APIView):

    """ Endpoint to create an item.
    """

    summary = "Create Item API Title" # Change title of API
    post_body_params = CreateItemRequest
    post_response_schema = CreateItemResponse

    def post(self, request):

        # Some code here...

        return Response({
            "pk":1,
            "details":"Successfully created item."
        })

Generated documentation

CreateItemAPI Redoc

To include multiple responses for the above endpoint, for example, an error response code, create a new Schema for the error response and change the post_response_schema attribute to the following

class ErrorResponse(Schema):
    """ Response schema for errors.
    """
    status_code : int
    details : str = Field(description="Error details for the user")

class CreateItemAPI(APIView):

    """ API View to create an item.
    """

    summary = "Create Item API Title" # Change title of API
    post_body_params = CreateItemRequest
    post_response_schema = {
        "200": CreateItemResponse,
        "400": ErrorResponse
    }

    def post(self, request):
        ...

Generated documentation

ErrorResponse Redoc

Documentation & Support

  • Full documentation is currently a work in progress.
  • This project is in continuous development. If you have any questions or would like to contribute, please email [email protected]
  • If you want to support this project, do give it a on github!
Comments
  • Compatibility issue with DRF 3.14.0

    Compatibility issue with DRF 3.14.0

    NullBooleanField was removed starting from DRF 3.14.0

    So, I encounter this issue with current djagger version:

    Traceback (most recent call last):
      File "/home/tonio/.virtualenvs/backend-VcZ5AJ-y/lib/python3.7/site-packages/django/core/handlers/exception.py", line 47, in inner
        response = get_response(request)
      File "/home/tonio/.virtualenvs/backend-VcZ5AJ-y/lib/python3.7/site-packages/django/core/handlers/base.py", line 181, in _get_response
        response = wrapped_callback(request, *callback_args, **callback_kwargs)
      File "/home/tonio/.virtualenvs/backend-VcZ5AJ-y/lib/python3.7/site-packages/sentry_sdk/integrations/django/views.py", line 67, in sentry_wrapped_callback
        return callback(request, *args, **kwargs)
      File "/home/tonio/projets/pro/SubstancesActives/djagger/djagger/views.py", line 17, in open_api_json
        document = Document.generate(**doc_settings)
      File "/home/tonio/projets/pro/SubstancesActives/djagger/djagger/openapi.py", line 956, in generate
        path = Path.create(view)
      File "/home/tonio/projets/pro/SubstancesActives/djagger/djagger/openapi.py", line 826, in create
        operation = Operation._from(view_func, http_method)
      File "/home/tonio/projets/pro/SubstancesActives/djagger/djagger/openapi.py", line 768, in _from
        operation._extract_responses(view, http_method)
      File "/home/tonio/projets/pro/SubstancesActives/djagger/djagger/openapi.py", line 639, in _extract_responses
        responses = {"200": Response._from(response_schema)}
      File "/home/tonio/projets/pro/SubstancesActives/djagger/djagger/openapi.py", line 399, in _from
        content={content_type: MediaType._from(model)},
      File "/home/tonio/projets/pro/SubstancesActives/djagger/djagger/openapi.py", line 267, in _from
        model = SerializerConverter(s=model).to_model()
      File "/home/tonio/projets/pro/SubstancesActives/djagger/djagger/serializers.py", line 252, in to_model
        return self.from_serializer(self.s())
      File "/home/tonio/projets/pro/SubstancesActives/djagger/djagger/serializers.py", line 218, in from_serializer
        t = cls.infer_field_type(field, field_name)
      File "/home/tonio/projets/pro/SubstancesActives/djagger/djagger/serializers.py", line 98, in infer_field_type
        fields.NullBooleanField: bool,
    AttributeError: module 'rest_framework.fields' has no attribute 'NullBooleanField'
    
    opened by tonioo 4
  • feat: added DJAGGER_DOCUMENT url_names parameter to resolve url also with their names

    feat: added DJAGGER_DOCUMENT url_names parameter to resolve url also with their names

    with this feature we extend the DJAGGER_DOCUMENT paramenters and we can configure the resouces also with url_names. Eg:

    DJAGGER_DOCUMENT = {
        "app_names" : ['my_entire_app'],
        "url_names": ['oidc_provider_token_endpoint']
    }
    
    enhancement 
    opened by peppelinux 4
  • Fixed duplicate content issue when we have more than 1 ListAPIView.

    Fixed duplicate content issue when we have more than 1 ListAPIView.

    To reproduce the issue, just create a project with two generic API views (inheriting from ListAPIView in my case) and do not override the get() method. Put custom description and response schema using the get_summary and response_schema shortcuts. You end up with a documentation containing two routes (expected) but with the same content!

    This is due to the fact that in the Document class, you end up playing with the get() method of the base class (ListAPIView), which remains the same instance whatever the route... With the if statement that was present, only the first view wins.

    I guess this error might happen in other cases but I only tested the one described above.

    opened by tonioo 2
  • 1.1.3

    1.1.3

    Fixed

    • Fixed bug where authorizations and security schemes were not being rendered. components parameter passed was not being proceessed in Document.generate.
    bug 
    opened by royhzq 0
  • 1.1.2

    1.1.2

    Prep for 1.1.2 release

    Added

    • Added missing .gitignore file.

    Changed

    • Updated changelog and sphinx docs.

    Fixed

    • Fixed date typos in this changelog file.
    opened by royhzq 0
  • 1.1.1

    1.1.1

    [1.1.1] - 2021-04-06

    Added

    • Rest framework serializers.ChoiceField and serializers.MultipleChoiceField will now be represented as Enum types with enum values correctly reflected in the schema.
    • Documentation for using Tags.

    Fixed

    • Fix bug where schema examples are not generated correctly.
    • Fix bug where the request URL for the objects are generated with an incorrect prefix.
    opened by royhzq 0
  • Serializer to pydantic model conversion for ChoiceField and MultipleChoiceField

    Serializer to pydantic model conversion for ChoiceField and MultipleChoiceField

    ChoiceField and MultipleChoiceField in serializers are represented as string after being converted to a pydantic model. Consider representing as Enum field type.

    opened by royhzq 0
Releases(1.1.4)
  • 1.1.4(Oct 31, 2022)

    [1.1.4] - 2022-10-31

    Removed

    • Removed support for DRF NullBooleanField field for compatibility with the latest DRF version 3.14.
    • Removed mapping of DRF serializer label to pydantic Field alias parameter.

    Fixed

    • Bug where documentation for generic views are duplicated.
    Source code(tar.gz)
    Source code(zip)
  • 1.1.3(Apr 19, 2022)

    [1.1.3] - 2022-04-17

    Fixed

    • Fixed bug where authorizations and security schemes were not being rendered. components parameter passed was not being proceessed in Document.generate.
    Source code(tar.gz)
    Source code(zip)
  • 1.1.2(Apr 6, 2022)

    [1.1.2] - 2022-04-06

    Added

    • Added url_names parameter to get_url_patterns to allow DJAGGER_DOCUMENT to filter API endpoints that should be documented via their url names.
    • Added missing .gitignore file.

    Fixed

    • Fixed date typos in this changelog file.
    Source code(tar.gz)
    Source code(zip)
  • 1.1.1(Jan 6, 2022)

    [1.1.1] - 2021-04-06

    Added

    • Rest framework serializers.ChoiceField and serializers.MultipleChoiceField will now be represented as Enum types with enum values correctly reflected in the schema.
    • Documentation for using Tags.

    Fixed

    • Fix bug where schema examples are not generated correctly.
    • Fix bug where the request URL for the objects are generated with an incorrect prefix.
    Source code(tar.gz)
    Source code(zip)
  • 1.1.0(Jan 4, 2022)

    1.1.0

    Added

    • Added documentation.
    • Support for generic views and viewsets.
    • Support for DRF Serializer to pydantic model conversion.
    • Support for multiple responses and different response content types.
    • Support for function-based views via schema decorator.
    • Added option for a global prefix to all Djagger attributes.
    • Generated schema fully compatible with OpenAPI 3.

    Removed

    • djagger.swagger.* pydantic models. Removed support for Swagger 2.0 specification.
    Source code(tar.gz)
    Source code(zip)
  • 1.0.0(Dec 11, 2021)

    This is the first Djagger release. New

    • Auto-generates complete OpenAPI schema for all API routes discovered in the Django project.
    • Supports schema generation for Django Class-based views and Function-based views.
    • Supports schema generation for all Django REST Framework API views (class-based and function-based).
    Source code(tar.gz)
    Source code(zip)
Owner
Roy's Repositories
These are the scripts used for the project of ‘Assembly of a pan-genome for global cattle reveals missing sequence and novel structural variation, providing new insights into their diversity and evolution history’

script-SV-genotyping These are the scripts used for the project of ‘Assembly of a pan-genome for global cattle reveals missing sequence and novel stru

2 Aug 26, 2022
A fancy and practical functional tools

Funcy A collection of fancy functional tools focused on practicality. Inspired by clojure, underscore and my own abstractions. Keep reading to get an

Alexander Schepanovski 2.9k Dec 29, 2022
Python Projects is an Open Source to enhance your python skills

Welcome! 👋🏽 Python Project is Open Source to enhance your python skills. You're free to contribute. 🤓 You just need to give us your scripts written

Tristán 6 Nov 28, 2022
A tool to nowcast quarterly data with monthly indicators: US consumption example

MIDAS_Nowcaster A tool to nowcast quarterly data with monthly indicators: US consumption example Pulls data directly from FRED from a list of codes -

Gene Kindberg-Hanlon 3 Oct 06, 2022
Python-Course-V1 - This Repo contains a series of Python Jupyter Notebooks and assignments

This Repo contains a series of Python Jupyter Notebooks and assignments. The assignments are taken from Python Crash Course book by Eric Matthes.

2 Nov 15, 2022
The official FOSSCOMM 2021 CTF by [email protected]

FOSSCOMM 2021 CTF Table of Contents General Info FAQ General Info Purpose: This CTF is a collaboration between the FOSSCOMM conference and the Machina 2 Nov 14, 2021

A Python package for searching journal publications and researchers

scholarpy A python package for searching journal publications and researchers Free software: MIT license Documentation: https://giswqs.github.io/schol

Qiusheng Wu 8 Mar 12, 2022
A water drinking notification every hour to keep you healthy while coding :)

Water_Notification A water drinking notification every hour to keep you healthy while coding. 💧 💧 Stay Hydrated Stay Healthy 💧 💧 Authors @CrazyCat

Arghya Banerjee 1 Dec 22, 2021
BridgeWalk is a partially-observed reinforcement learning environment with dynamics of varying stochasticity.

BridgeWalk is a partially-observed reinforcement learning environment with dynamics of varying stochasticity. The player needs to walk along a bridge to reach a goal location. When the player walks o

Danijar Hafner 6 Jun 13, 2022
Very Simple 2 Message Spammer!

Very Simple 2 Message Spammer!

Syntax. 4 Dec 06, 2022
Automatically skip sponsor segments in YouTube videos playing on Apple TV.

iSponsorBlockTV Skip sponsor segments in YouTube videos playing on an Apple TV. This project is written in asycronous python and should be pretty quic

David 64 Dec 17, 2022
Write Streamlit apps using Notion! (Prototype)

Streamlit + Notion test app Write Streamlit apps using Notion! ☠️ IMPORTANT: This is just a little prototype I made to play with some ideas. Not meant

Thiago Teixeira 22 Sep 08, 2022
Project for viewing the cheapest flight deals from Netherlands to other countries.

Flight_Deals_AMS Project for viewing the cheapest flight deals from Netherlands to other countries.

2 Dec 17, 2022
Convert text with ANSI color codes to HTML or to LaTeX.

Convert text with ANSI color codes to HTML or to LaTeX.

PyContribs 326 Dec 28, 2022
Cylc: a workflow engine for cycling systems

Cylc: a workflow engine for cycling systems. Repository master branch: core meta-scheduler component of cylc-8 (in development); Repository 7.8.x branch: full cylc-7 system.

The Cylc Workflow Engine 205 Dec 20, 2022
Blender addon for executing the operator in response to the received OSC message.

I/F Joiner 受信したOSCメッセージに応じてオペレータ(bpy.ops)を実行するアドオンです. OSC通信に対応したコントローラやアプリをインストールしたスマートフォンを使用してBlenderを操作することが可能になります. 同時開発しているAndroidコントローラ化アプリMocopa

simasimataiyo 6 Oct 02, 2022
PwnDatas-DB-Project(PDDP)

PwnDatas-DB-Project PwnDatas-DB-Project(PDDP) 安裝依賴: pip3 install pymediawiki 使用: cd /opt git https://github.com/JustYoomoon/PwnDatas-DB-Project.git c

21 Jul 16, 2021
The presented desktop application was made to solve 1d schrodinger eqation

schrodinger_equation_1d_solver The presented desktop application was made to solve 1d schrodinger eqation. It implements Numerov's algorithm (step by

Artem Kashapov 2 Dec 29, 2021
Blender 3.0 Python - Open temporary areas in the Text Editor

PopDrawers When editing text in Blender, it can be handy to have areas like Info, Console, Outliner, etc visible on screen to help with scripting. How

SpectralVectors 7 Nov 16, 2022
Painel de consulta

⚙ FullP 1.1 Instalação 💻 git clone https://github.com/gav1x/FullP.git cd FullP pip3 install -r requirements.txt python3 main.py Um pequeno

gav1x 26 Oct 11, 2022