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apispec

A pluggable API specification generator. Currently supports the OpenAPI Specification (f.k.a. the Swagger specification).

  • 6.8.0
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2

apispec


|pypi| |build-status| |docs| |marshmallow3| |openapi|

.. |pypi| image:: https://badgen.net/pypi/v/apispec :target: https://pypi.org/project/apispec/ :alt: PyPI package

.. |build-status| image:: https://github.com/marshmallow-code/apispec/actions/workflows/build-release.yml/badge.svg :target: https://github.com/marshmallow-code/webargs/actions/workflows/build-release.yml :alt: Build status

.. |docs| image:: https://readthedocs.org/projects/apispec/badge/ :target: https://apispec.readthedocs.io/ :alt: Documentation

.. |marshmallow3| image:: https://badgen.net/badge/marshmallow/3?list=1 :target: https://marshmallow.readthedocs.io/en/latest/upgrading.html :alt: marshmallow 3 only

.. |openapi| image:: https://badgen.net/badge/OAS/2,3?list=1&color=cyan :target: https://github.com/OAI/OpenAPI-Specification :alt: OpenAPI Specification 2/3 compatible

A pluggable API specification generator. Currently supports the OpenAPI Specification <https://github.com/OAI/OpenAPI-Specification>_ (f.k.a. the Swagger specification).

Features

  • Supports the OpenAPI Specification (versions 2 and 3)
  • Framework-agnostic
  • Built-in support for marshmallow <https://marshmallow.readthedocs.io/>_
  • Utilities for parsing docstrings

Installation

::

$ pip install -U apispec

When using the marshmallow plugin, ensure a compatible marshmallow version is used: ::

$ pip install -U apispec[marshmallow]

Example Application

.. code-block:: python

from apispec import APISpec
from apispec.ext.marshmallow import MarshmallowPlugin
from apispec_webframeworks.flask import FlaskPlugin
from flask import Flask
from marshmallow import Schema, fields


# Create an APISpec
spec = APISpec(
    title="Swagger Petstore",
    version="1.0.0",
    openapi_version="3.0.2",
    plugins=[FlaskPlugin(), MarshmallowPlugin()],
)


# Optional marshmallow support
class CategorySchema(Schema):
    id = fields.Int()
    name = fields.Str(required=True)


class PetSchema(Schema):
    category = fields.List(fields.Nested(CategorySchema))
    name = fields.Str()


# Optional security scheme support
api_key_scheme = {"type": "apiKey", "in": "header", "name": "X-API-Key"}
spec.components.security_scheme("ApiKeyAuth", api_key_scheme)


# Optional Flask support
app = Flask(__name__)


@app.route("/random")
def random_pet():
    """A cute furry animal endpoint.
    ---
    get:
      description: Get a random pet
      security:
        - ApiKeyAuth: []
      responses:
        200:
          content:
            application/json:
              schema: PetSchema
    """
    pet = get_random_pet()
    return PetSchema().dump(pet)


# Register the path and the entities within it
with app.test_request_context():
    spec.path(view=random_pet)

Generated OpenAPI Spec

.. code-block:: python

import json

print(json.dumps(spec.to_dict(), indent=2))
# {
#   "paths": {
#     "/random": {
#       "get": {
#         "description": "Get a random pet",
#         "security": [
#           {
#             "ApiKeyAuth": []
#           }
#         ],
#         "responses": {
#           "200": {
#             "content": {
#               "application/json": {
#                 "schema": {
#                   "$ref": "#/components/schemas/Pet"
#                 }
#               }
#             }
#           }
#         }
#       }
#     }
#   },
#   "tags": [],
#   "info": {
#     "title": "Swagger Petstore",
#     "version": "1.0.0"
#   },
#   "openapi": "3.0.2",
#   "components": {
#     "parameters": {},
#     "responses": {},
#     "schemas": {
#       "Category": {
#         "type": "object",
#         "properties": {
#           "name": {
#             "type": "string"
#           },
#           "id": {
#             "type": "integer",
#             "format": "int32"
#           }
#         },
#         "required": [
#           "name"
#         ]
#       },
#       "Pet": {
#         "type": "object",
#         "properties": {
#           "name": {
#             "type": "string"
#           },
#           "category": {
#             "type": "array",
#             "items": {
#               "$ref": "#/components/schemas/Category"
#             }
#           }
#         }
#       }
#       "securitySchemes": {
#          "ApiKeyAuth": {
#            "type": "apiKey",
#            "in": "header",
#            "name": "X-API-Key"
#         }
#       }
#     }
#   }
# }

print(spec.to_yaml())
# components:
#   parameters: {}
#   responses: {}
#   schemas:
#     Category:
#       properties:
#         id: {format: int32, type: integer}
#         name: {type: string}
#       required: [name]
#       type: object
#     Pet:
#       properties:
#         category:
#           items: {$ref: '#/components/schemas/Category'}
#           type: array
#         name: {type: string}
#       type: object
#   securitySchemes:
#     ApiKeyAuth:
#       in: header
#       name: X-API-KEY
#       type: apiKey
# info: {title: Swagger Petstore, version: 1.0.0}
# openapi: 3.0.2
# paths:
#   /random:
#     get:
#       description: Get a random pet
#       responses:
#         200:
#           content:
#             application/json:
#               schema: {$ref: '#/components/schemas/Pet'}
#       security:
#       - ApiKeyAuth: []
# tags: []

Documentation

Documentation is available at https://apispec.readthedocs.io/ .

Ecosystem

A list of apispec-related libraries can be found at the GitHub wiki here:

https://github.com/marshmallow-code/apispec/wiki/Ecosystem

Support apispec

apispec is maintained by a group of volunteers <https://apispec.readthedocs.io/en/latest/authors.html>_. If you'd like to support the future of the project, please consider contributing to our Open Collective:

.. image:: https://opencollective.com/marshmallow/donate/button.png :target: https://opencollective.com/marshmallow :width: 200 :alt: Donate to our collective

Professional Support

Professionally-supported apispec is available through the Tidelift Subscription <https://tidelift.com/subscription/pkg/pypi-apispec?utm_source=pypi-apispec&utm_medium=referral&utm_campaign=readme>_.

Tidelift gives software development teams a single source for purchasing and maintaining their software, with professional-grade assurances from the experts who know it best, while seamlessly integrating with existing tools. [Get professional support_]

.. _Get professional support: https://tidelift.com/subscription/pkg/pypi-apispec?utm_source=pypi-apispec&utm_medium=referral&utm_campaign=readme

.. image:: https://user-images.githubusercontent.com/2379650/45126032-50b69880-b13f-11e8-9c2c-abd16c433495.png :target: https://tidelift.com/subscription/pkg/pypi-apispec?utm_source=pypi-apispec&utm_medium=referral&utm_campaign=readme :alt: Get supported apispec with Tidelift

Security Contact Information

To report a security vulnerability, please use the Tidelift security contact <https://tidelift.com/security>_. Tidelift will coordinate the fix and disclosure.

License

MIT licensed. See the bundled LICENSE <https://github.com/marshmallow-code/apispec/blob/dev/LICENSE>_ file for more details.

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