django-rest-framework/docs/api-guide/settings.md

<a class="github" href="settings.py"></a>

# Settings

> Namespaces are one honking great idea - let's do more of those!
>
> &mdash; [The Zen of Python][cite]

Configuration for REST framework is all namespaced inside a single Django setting, named `REST_FRAMEWORK`.

For example your project's `settings.py` file might include something like this:

    REST_FRAMEWORK = {
        'DEFAULT_RENDERER_CLASSES': (
            'rest_framework.renderers.YAMLRenderer',
        ),
        'DEFAULT_PARSER_CLASSES': (
            'rest_framework.parsers.YAMLParser',
        )
    }

## Accessing settings

If you need to access the values of REST framework's API settings in your project,
you should use the `api_settings` object.  For example.

    from rest_framework.settings import api_settings
    
    print api_settings.DEFAULT_AUTHENTICATION_CLASSES

The `api_settings` object will check for any user-defined settings, and otherwise fallback to the default values.  Any setting that uses string import paths to refer to a class will automatically import and return the referenced class, instead of the string literal.

---

# API Reference

## DEFAULT_RENDERER_CLASSES

A list or tuple of renderer classes, that determines the default set of renderers that may be used when returning a `Response` object.

Default:

    (
        'rest_framework.renderers.JSONRenderer',
        'rest_framework.renderers.BrowsableAPIRenderer',
        'rest_framework.renderers.TemplateHTMLRenderer'
    )

## DEFAULT_PARSER_CLASSES

A list or tuple of parser classes, that determines the default set of parsers used when accessing the `request.DATA` property.

Default:

    (
        'rest_framework.parsers.JSONParser',
        'rest_framework.parsers.FormParser'
    )

## DEFAULT_AUTHENTICATION_CLASSES

A list or tuple of authentication classes, that determines the default set of authenticators used when accessing the `request.user` or `request.auth` properties.

Default:

    (
        'rest_framework.authentication.SessionAuthentication',
        'rest_framework.authentication.UserBasicAuthentication'
    )

## DEFAULT_PERMISSION_CLASSES

A list or tuple of permission classes, that determines the default set of permissions checked at the start of a view.

Default:

    (
        'rest_framework.permissions.AllowAny',
    )

## DEFAULT_THROTTLE_CLASSES

A list or tuple of throttle classes, that determines the default set of throttles checked at the start of a view.

Default: `()`

## DEFAULT_MODEL_SERIALIZER_CLASS

**TODO**

Default: `rest_framework.serializers.ModelSerializer`

## DEFAULT_PAGINATION_SERIALIZER_CLASS

**TODO**

Default: `rest_framework.pagination.PaginationSerializer`

## FORMAT_SUFFIX_KWARG

**TODO**

Default: `'format'`

## UNAUTHENTICATED_USER

The class that should be used to initialize `request.user` for unauthenticated requests.

Default: `django.contrib.auth.models.AnonymousUser`

## UNAUTHENTICATED_TOKEN

The class that should be used to initialize `request.auth` for unauthenticated requests.

Default: `None`

## FORM_METHOD_OVERRIDE

The name of a form field that may be used to override the HTTP method of the form.

If the value of this setting is `None` then form method overloading will be disabled.

Default: `'_method'`

## FORM_CONTENT_OVERRIDE

The name of a form field that may be used to override the content of the form payload.  Must be used together with `FORM_CONTENTTYPE_OVERRIDE`.

If either setting is `None` then form content overloading will be disabled.

Default: `'_content'`

## FORM_CONTENTTYPE_OVERRIDE

The name of a form field that may be used to override the content type of the form payload.  Must be used together with `FORM_CONTENT_OVERRIDE`.

If either setting is `None` then form content overloading will be disabled.

Default: `'_content_type'`

## URL_ACCEPT_OVERRIDE

The name of a URL parameter that may be used to override the HTTP `Accept` header.

If the value of this setting is `None` then URL accept overloading will be disabled.

Default: `'accept'`

## URL_FORMAT_OVERRIDE

Default: `'format'`

## PAGE_SIZE_KWARG

Allows you to globally pass a page size parameter for an individual request.

The name of the GET parameter of views which inherit ListModelMixin for requesting data with an individual page size.

If the value if this setting is `None` the passing a page size is turned off by default.

Default: `'page_size'`

[cite]: http://www.python.org/dev/peps/pep-0020/