Configuration

Sanic Extensions can be configured in all of the same ways that you can configure Sanic. That makes configuring Sanic Extensions very easy.

app = Sanic("MyApp")
app.config.OAS_URL_PREFIX = "/apidocs"

However, there are a few more configuration options that should be considered.

Manual extend

Even though Sanic Extensions will automatically attach to your application, you can manually choose extend. When you do that, you can pass all of the configuration values as a keyword arguments (lowercase).

app = Sanic("MyApp")
app.extend(oas_url_prefix="/apidocs")

Or, alternatively they could be passed all at once as a single dict.

app = Sanic("MyApp")
app.extend(config={"oas_url_prefix": "/apidocs"})

Both of these solutions suffers from the fact that the names of the configuration settings are not discoverable by an IDE. Therefore, there is also a type annotated object that you can use. This should help the development experience.

from sanic_ext import Config
app = Sanic("MyApp")
app.extend(config=Config(oas_url_prefix="/apidocs"))

Settings

cors

• Type: bool
• Default: True
• Description: Whether to enable CORS protection

cors_allow_headers

• Type: str
• Default: "*"
• Description: Value of the header: access-control-allow-headers

cors_always_send

• Type: bool
• Default: True
• Description: Whether to always send the header: access-control-allow-origin

cors_automatic_options

• Type: bool
• Default: True
• Description: Whether to automatically generate OPTIONS endpoints for routes that do not already have one defined

cors_expose_headers

• Type: str
• Default: ""
• Description: Value of the header: access-control-expose-headers

cors_max_age

• Type: int
• Default: 5
• Description: Value of the header: access-control-max-age

cors_methods

• Type: str
• Default: ""
• Description: Value of the header: access-control-access-control-allow-methods

cors_origins

• Type: str
• Default: ""
• Description: Value of the header: access-control-allow-origin

WARNING

Be very careful if you place * here. Do not do this unless you know what you are doing as it can be a security issue.

cors_send_wildcard

• Type: bool
• Default: False
• Description: Whether to send a wildcard origin instead of the incoming request origin

cors_supports_credentials

• Type: bool
• Default: False
• Description: Value of the header: access-control-allow-credentials

cors_vary_header

• Type: bool
• Default: True
• Description: Whether to add the vary header

http_all_methods

• Type: bool
• Default: True
• Description: Adds the HTTP CONNECT and TRACE methods as allowable

http_auto_head

• Type: bool
• Default: True
• Description: Automatically adds HEAD handlers to any GET routes

http_auto_options

• Type: bool
• Default: True
• Description: Automatically adds OPTIONS handlers to any routes without

http_auto_trace

• Type: bool
• Default: False
• Description: Automatically adds TRACE handlers to any routes without

oas

• Type: bool
• Default: True
• Description: Whether to enable OpenAPI specification generation

oas_autodoc

• Type: bool
• Default: True
• Description: Whether to automatically extract OpenAPI details from the docstring of a route function

oas_ignore_head

• Type: bool
• Default: True
• Description: WHen True, it will not add HEAD endpoints into the OpenAPI specification

oas_ignore_options

• Type: bool
• Default: True
• Description: WHen True, it will not add OPTIONS endpoints into the OpenAPI specification

oas_path_to_redoc_html

• Type: Optional[str]
• Default: None
• Description: Path to HTML file to override the existing Redoc HTML

oas_path_to_swagger_html

• Type: Optional[str]
• Default: None
• Description: Path to HTML file to override the existing Swagger HTML

oas_ui_default

• Type: Optional[str]
• Default: "redoc"
• Description: Which OAS documentation to serve on the bare oas_url_prefix endpoint; when None there will be no documentation at that location

oas_ui_redoc

• Type: bool
• Default: True
• Description: Whether to enable the Redoc UI

oas_ui_swagger

• Type: bool
• Default: True
• Description: Whether to enable the Swagger UI

oas_ui_swagger_version

• Type: str
• Default: "4.1.0"
• Description: Which Swagger version to use

oas_uri_to_config

• Type: str
• Default: "/swagger-config"
• Description: Path to serve the Swagger configurtaion

oas_uri_to_json

• Type: str
• Default: "/openapi.json"
• Description: Path to serve the OpenAPI JSON

oas_uri_to_redoc

• Type: str
• Default: "/redoc"
• Description: Path to Redoc

oas_uri_to_swagger

• Type: str
• Default: "/swagger"
• Description: Path to Swagger

oas_url_prefix

• Type: str
• Default: "/docs"
• Description: URL prefix for the Blueprint that all of the OAS documentation witll attach to

swagger_ui_configuration

• Type: Dict[str, Any]
• Default: {"apisSorter": "alpha", "operationsSorter": "alpha", "docExpansion": "full"}
• Description: The Swagger documentation to be served to the frontend

templating_enable_async

• Type: bool
• Default: True
• Description: Whether to set enable_async on the Jinja Environment

templating_path_to_templates

• Type: Union[str, os.PathLike, Sequence[Union[str, os.PathLike]]]
• Default: templates
• Description: A single path, or multiple paths to where your template files are located

trace_excluded_headers

• Type: Sequence[str]
• Default: ("authorization", "cookie")
• Description: Which headers should be suppresed from responses to TRACE requests