Settings

Settings are configurable in settings.py in the scope SPECTACULAR_SETTINGS. You can override any setting, otherwise the defaults below are used.


SPECTACULAR_DEFAULTS: Dict[str, Any] = {
    # A regex specifying the common denominator for all operation paths. If
    # SCHEMA_PATH_PREFIX is set to None, drf-spectacular will attempt to estimate
    # a common prefix. use '' to disable.
    # Mainly used for tag extraction, where paths like '/api/v1/albums' with
    # a SCHEMA_PATH_PREFIX regex '/api/v[0-9]' would yield the tag 'albums'.
    'SCHEMA_PATH_PREFIX': None,
    # Remove matching SCHEMA_PATH_PREFIX from operation path. Usually used in
    # conjunction with appended prefixes in SERVERS.
    'SCHEMA_PATH_PREFIX_TRIM': False,
    # Insert a manual path prefix to the operation path, e.g. '/service/backend'.
    # Use this for example to align paths when the API is mounted as a sub-resource
    # behind a proxy and Django is not aware of that. Alternatively, prefixes can
    # also specified via SERVERS, but this makes the operation path more explicit.
    'SCHEMA_PATH_PREFIX_INSERT': '',

    # Coercion of {pk} to {id} is controlled by SCHEMA_COERCE_PATH_PK. Additionally,
    # some libraries (e.g. drf-nested-routers) use "_pk" suffixed path variables.
    # This setting globally coerces path variables like "{user_pk}" to "{user_id}".
    'SCHEMA_COERCE_PATH_PK_SUFFIX': False,

    'DEFAULT_GENERATOR_CLASS': 'drf_spectacular.generators.SchemaGenerator',

    # Schema generation parameters to influence how components are constructed.
    # Some schema features might not translate well to your target.
    # Demultiplexing/modifying components might help alleviate those issues.
    #
    # Create separate components for PATCH endpoints (without required list)
    'COMPONENT_SPLIT_PATCH': True,
    # Split components into request and response parts where appropriate
    # This setting is highly recommended to achieve the most accurate API
    # description, however it comes at the cost of having more components.
    'COMPONENT_SPLIT_REQUEST': False,
    # Aid client generator targets that have trouble with read-only properties.
    'COMPONENT_NO_READ_ONLY_REQUIRED': False,

    # Adds "minLength: 1" to fields that do not allow blank strings. Deactivated
    # by default because serializers do not strictly enforce this on responses and
    # so "minLength: 1" may not always accurately describe API behavior.
    # Gets implicitly enabled by COMPONENT_SPLIT_REQUEST, because this can be
    # accurately modeled when request and response components are separated.
    'ENFORCE_NON_BLANK_FIELDS': False,

    # Configuration for serving a schema subset with SpectacularAPIView
    'SERVE_URLCONF': None,
    # complete public schema or a subset based on the requesting user
    'SERVE_PUBLIC': True,
    # include schema enpoint into schema
    'SERVE_INCLUDE_SCHEMA': True,
    # list of authentication/permission classes for spectacular's views.
    'SERVE_PERMISSIONS': ['rest_framework.permissions.AllowAny'],
    # None will default to DRF's AUTHENTICATION_CLASSES
    'SERVE_AUTHENTICATION': None,

    # Dictionary of general configuration to pass to the SwaggerUI({ ... })
    # https://swagger.io/docs/open-source-tools/swagger-ui/usage/configuration/
    # The settings are serialized with json.dumps(). If you need customized JS, use a
    # string instead. The string must then contain valid JS and is passed unchanged.
    'SWAGGER_UI_SETTINGS': {
        'deepLinking': True,
    },
    # Initialize SwaggerUI with additional OAuth2 configuration.
    # https://swagger.io/docs/open-source-tools/swagger-ui/usage/oauth2/
    'SWAGGER_UI_OAUTH2_CONFIG': {},

    # Dictionary of general configuration to pass to the Redoc.init({ ... })
    # https://github.com/Redocly/redoc#redoc-options-object
    # The settings are serialized with json.dumps(). If you need customized JS, use a
    # string instead. The string must then contain valid JS and is passed unchanged.
    'REDOC_UI_SETTINGS': {},

    # CDNs for swagger and redoc. You can change the version or even host your
    # own depending on your requirements. For self-hosting, have a look at
    # the sidecar option in the README.
    'SWAGGER_UI_DIST': 'https://cdn.jsdelivr.net/npm/swagger-ui-dist@latest',
    'SWAGGER_UI_FAVICON_HREF': 'https://cdn.jsdelivr.net/npm/swagger-ui-dist@latest/favicon-32x32.png',
    'REDOC_DIST': 'https://cdn.jsdelivr.net/npm/redoc@latest',

    # Append OpenAPI objects to path and components in addition to the generated objects
    'APPEND_PATHS': {},
    'APPEND_COMPONENTS': {},

    # DISCOURAGED - please don't use this anymore as it has tricky implications that
    # are hard to get right. For authentication, OpenApiAuthenticationExtension are
    # strongly preferred because they are more robust and easy to write.
    # However if used, the list of methods is appended to every endpoint in the schema!
    'SECURITY': [],

    # Postprocessing functions that run at the end of schema generation.
    # must satisfy interface result = hook(generator, request, public, result)
    'POSTPROCESSING_HOOKS': [
        'drf_spectacular.hooks.postprocess_schema_enums'
    ],

    # Preprocessing functions that run before schema generation.
    # must satisfy interface result = hook(endpoints=result) where result
    # is a list of Tuples (path, path_regex, method, callback).
    # Example: 'drf_spectacular.hooks.preprocess_exclude_path_format'
    'PREPROCESSING_HOOKS': [],

    # Determines how operations should be sorted. If you intend to do sorting with a
    # PREPROCESSING_HOOKS, be sure to disable this setting. If configured, the sorting
    # is applied after the PREPROCESSING_HOOKS. Accepts either
    # True (drf-spectacular's alpha-sorter), False, or a callable for sort's key arg.
    'SORT_OPERATIONS': True,

    # enum name overrides. dict with keys "YourEnum" and their choice values "field.choices"
    # e.g. {'SomeEnum': ['A', 'B'], 'OtherEnum': 'import.path.to.choices'}
    'ENUM_NAME_OVERRIDES': {},
    # Adds "blank" and "null" enum choices where appropriate. disable on client generation issues
    'ENUM_ADD_EXPLICIT_BLANK_NULL_CHOICE': True,

    # function that returns a list of all classes that should be excluded from doc string extraction
    'GET_LIB_DOC_EXCLUDES': 'drf_spectacular.plumbing.get_lib_doc_excludes',

    # Function that returns a mocked request for view processing. For CLI usage
    # original_request will be None.
    # interface: request = build_mock_request(method, path, view, original_request, **kwargs)
    'GET_MOCK_REQUEST': 'drf_spectacular.plumbing.build_mock_request',

    # Camelize names like operationId and path parameter names
    # Camelization of the operation schema itself requires the addition of
    # 'drf_spectacular.contrib.djangorestframework_camel_case.camelize_serializer_fields'
    # to POSTPROCESSING_HOOKS. Please note that the hook depends on
    # ``djangorestframework_camel_case``, while CAMELIZE_NAMES itself does not.
    'CAMELIZE_NAMES': False,

    # Determines if and how free-form 'additionalProperties' should be emitted in the schema. Some
    # code generator targets are sensitive to this. None disables generic 'additionalProperties'.
    # allowed values are 'dict', 'bool', None
    'GENERIC_ADDITIONAL_PROPERTIES': 'dict',

    # Path converter schema overrides (e.g. <int:foo>). Can be used to either modify default
    # behavior or provide a schema for custom converters registered with register_converter(...).
    # Takes converter labels as keys and either basic python types, OpenApiType, or raw schemas
    # as values. Example: {'aint': OpenApiTypes.INT, 'bint': str, 'cint': {'type': ...}}
    'PATH_CONVERTER_OVERRIDES': {},

    # Determines whether operation parameters should be sorted alphanumerically or just in
    # the order they arrived. Accepts either True, False, or a callable for sort's key arg.
    'SORT_OPERATION_PARAMETERS': True,

    # @extend_schema allows to specify status codes besides 200. This functionality is usually used
    # to describe error responses, which rarely make use of list mechanics. Therefore, we suppress
    # listing (pagination and filtering) on non-2XX status codes by default. Toggle this to enable
    # list responses with ListSerializers/many=True irrespective of the status code.
    'ENABLE_LIST_MECHANICS_ON_NON_2XX': False,

    # Controls which authentication methods are exposed in the schema. If not empty, will hide
    # authentication classes that are not contained in the whitelist. Use full import paths
    # like ['rest_framework.authentication.TokenAuthentication', ...]
    'AUTHENTICATION_WHITELIST': [],
    # Controls which parsers are exposed in the schema. Works analog to AUTHENTICATION_WHITELIST.
    'PARSER_WHITELIST': [],
    # Controls which renderers are exposed in the schema. Works analog to AUTHENTICATION_WHITELIST.
    # rest_framework.renderers.BrowsableAPIRenderer is ignored by default if whitelist is empty
    'RENDERER_WHITELIST': [],

    # Option for turning off error and warn messages
    'DISABLE_ERRORS_AND_WARNINGS': False,

    # Runs exemplary schema generation and emits warnings as part of "./manage.py check --deploy"
    'ENABLE_DJANGO_DEPLOY_CHECK': True,

    # General schema metadata. Refer to spec for valid inputs
    # https://spec.openapis.org/oas/v3.0.3#openapi-object
    'TITLE': '',
    'DESCRIPTION': '',
    'TOS': None,
    # Optional: MAY contain "name", "url", "email"
    'CONTACT': {},
    # Optional: MUST contain "name", MAY contain URL
    'LICENSE': {},
    # Statically set schema version. May also be an empty string. When used together with
    # view versioning, will become '0.0.0 (v2)' for 'v2' versioned requests.
    # Set VERSION to None if only the request version should be rendered.
    'VERSION': '0.0.0',
    # Optional list of servers.
    # Each entry MUST contain "url", MAY contain "description", "variables"
    # e.g. [{'url': 'https://example.com/v1', 'description': 'Text'}, ...]
    'SERVERS': [],
    # Tags defined in the global scope
    'TAGS': [],
    # Optional: MUST contain 'url', may contain "description"
    'EXTERNAL_DOCS': {},

    # Arbitrary specification extensions attached to the schema's info object.
    # https://swagger.io/specification/#specification-extensions
    'EXTENSIONS_INFO': {},

    # Arbitrary specification extensions attached to the schema's root object.
    # https://swagger.io/specification/#specification-extensions
    'EXTENSIONS_ROOT': {},

    # Oauth2 related settings. used for example by django-oauth2-toolkit.
    # https://spec.openapis.org/oas/v3.0.3#oauthFlowsObject
    'OAUTH2_FLOWS': [],
    'OAUTH2_AUTHORIZATION_URL': None,
    'OAUTH2_TOKEN_URL': None,
    'OAUTH2_REFRESH_URL': None,
    'OAUTH2_SCOPES': None,
}

Django Rest Framework settings

Some of the Django Rest Framework settings also impact the schema generation. Refer to the documentation for the version that you are using.

Settings which effect the processing of requests and data types of responses will usually be effective.

There is explicit use of these settings:

  • DEFAULT_SCHEMA_CLASS

  • COERCE_DECIMAL_TO_STRING

  • UPLOADED_FILES_USE_URL

  • URL_FORMAT_OVERRIDE

  • FORMAT_SUFFIX_KWARG

The following settings are ignored:

  • SCHEMA_COERCE_METHOD_NAMES

The following are known to be effective:

  • SCHEMA_COERCE_PATH_PK

Example: SwaggerUI settings

We currently support passing through all basic SwaggerUI configuration parameters. For more customization options (e.g. JS functions), you can modify and override the SwaggerUI template in your project files.

SPECTACULAR_SETTINGS = {
    ...
    # available SwaggerUI configuration parameters
    # https://swagger.io/docs/open-source-tools/swagger-ui/usage/configuration/
    "SWAGGER_UI_SETTINGS": {
        "deepLinking": True,
        "persistAuthorization": True,
        "displayOperationId": True,
        ...
    },
    # available SwaggerUI versions: https://github.com/swagger-api/swagger-ui/releases
    "SWAGGER_UI_DIST": "//unpkg.com/swagger-ui-dist@3.35.1", # default
    "SWAGGER_UI_FAVICON_HREF": settings.STATIC_URL + "your_company_favicon.png", # default is swagger favicon
    ...
}