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< span class = "label label-info" > settings.py< / span >
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< h1 id = "settings" > < a class = "toclink" href = "#settings" > Settings< / a > < / h1 >
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< blockquote >
< p > Namespaces are one honking great idea - let's do more of those!< / p >
< p > — < a href = "http://www.python.org/dev/peps/pep-0020/" > The Zen of Python< / a > < / p >
< / blockquote >
< p > Configuration for REST framework is all namespaced inside a single Django setting, named < code > REST_FRAMEWORK< / code > .< / p >
< p > For example your project's < code > settings.py< / code > file might include something like this:< / p >
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< pre > < code > REST_FRAMEWORK = {
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'DEFAULT_RENDERER_CLASSES': (
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'rest_framework.renderers.JSONRenderer',
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),
'DEFAULT_PARSER_CLASSES': (
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'rest_framework.parsers.JSONParser',
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)
}
< / code > < / pre >
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< h2 id = "accessing-settings" > < a class = "toclink" href = "#accessing-settings" > Accessing settings< / a > < / h2 >
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< p > If you need to access the values of REST framework's API settings in your project,
you should use the < code > api_settings< / code > object. For example.< / p >
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< pre > < code > from rest_framework.settings import api_settings
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print api_settings.DEFAULT_AUTHENTICATION_CLASSES
< / code > < / pre >
< p > The < code > api_settings< / code > object will check for any user-defined settings, and otherwise fall back 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.< / p >
< hr / >
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< h1 id = "api-reference" > < a class = "toclink" href = "#api-reference" > API Reference< / a > < / h1 >
< h2 id = "api-policy-settings" > < a class = "toclink" href = "#api-policy-settings" > API policy settings< / a > < / h2 >
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< p > < em > The following settings control the basic API policies, and are applied to every < code > APIView< / code > class based view, or < code > @api_view< / code > function based view.< / em > < / p >
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< h4 id = "default_renderer_classes" > < a class = "toclink" href = "#default_renderer_classes" > DEFAULT_RENDERER_CLASSES< / a > < / h4 >
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< p > A list or tuple of renderer classes, that determines the default set of renderers that may be used when returning a < code > Response< / code > object.< / p >
< p > Default:< / p >
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< pre > < code > (
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'rest_framework.renderers.JSONRenderer',
'rest_framework.renderers.BrowsableAPIRenderer',
)
< / code > < / pre >
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< h4 id = "default_parser_classes" > < a class = "toclink" href = "#default_parser_classes" > DEFAULT_PARSER_CLASSES< / a > < / h4 >
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< p > A list or tuple of parser classes, that determines the default set of parsers used when accessing the < code > request.data< / code > property.< / p >
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< p > Default:< / p >
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< pre > < code > (
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'rest_framework.parsers.JSONParser',
'rest_framework.parsers.FormParser',
'rest_framework.parsers.MultiPartParser'
)
< / code > < / pre >
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< h4 id = "default_authentication_classes" > < a class = "toclink" href = "#default_authentication_classes" > DEFAULT_AUTHENTICATION_CLASSES< / a > < / h4 >
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< p > A list or tuple of authentication classes, that determines the default set of authenticators used when accessing the < code > request.user< / code > or < code > request.auth< / code > properties.< / p >
< p > Default:< / p >
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< pre > < code > (
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'rest_framework.authentication.SessionAuthentication',
'rest_framework.authentication.BasicAuthentication'
)
< / code > < / pre >
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< h4 id = "default_permission_classes" > < a class = "toclink" href = "#default_permission_classes" > DEFAULT_PERMISSION_CLASSES< / a > < / h4 >
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< p > A list or tuple of permission classes, that determines the default set of permissions checked at the start of a view. Permission must be granted by every class in the list.< / p >
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< p > Default:< / p >
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< pre > < code > (
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'rest_framework.permissions.AllowAny',
)
< / code > < / pre >
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< h4 id = "default_throttle_classes" > < a class = "toclink" href = "#default_throttle_classes" > DEFAULT_THROTTLE_CLASSES< / a > < / h4 >
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< p > A list or tuple of throttle classes, that determines the default set of throttles checked at the start of a view.< / p >
< p > Default: < code > ()< / code > < / p >
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< h4 id = "default_content_negotiation_class" > < a class = "toclink" href = "#default_content_negotiation_class" > DEFAULT_CONTENT_NEGOTIATION_CLASS< / a > < / h4 >
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< p > A content negotiation class, that determines how a renderer is selected for the response, given an incoming request.< / p >
< p > Default: < code > 'rest_framework.negotiation.DefaultContentNegotiation'< / code > < / p >
< hr / >
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< h2 id = "generic-view-settings" > < a class = "toclink" href = "#generic-view-settings" > Generic view settings< / a > < / h2 >
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< p > < em > The following settings control the behavior of the generic class based views.< / em > < / p >
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< h4 id = "default_pagination_serializer_class" > < a class = "toclink" href = "#default_pagination_serializer_class" > DEFAULT_PAGINATION_SERIALIZER_CLASS< / a > < / h4 >
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< hr / >
< p > < strong > This setting has been removed.< / strong > < / p >
< p > The pagination API does not use serializers to determine the output format, and
you'll need to instead override the `get_paginated_response method on a
pagination class in order to specify how the output format is controlled.< / p >
< hr / >
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< h4 id = "default_filter_backends" > < a class = "toclink" href = "#default_filter_backends" > DEFAULT_FILTER_BACKENDS< / a > < / h4 >
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< p > A list of filter backend classes that should be used for generic filtering.
If set to < code > None< / code > then generic filtering is disabled.< / p >
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< h4 id = "paginate_by" > < a class = "toclink" href = "#paginate_by" > PAGINATE_BY< / a > < / h4 >
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< hr / >
< p > < strong > This setting has been removed.< / strong > < / p >
< p > See the pagination documentation for further guidance on < a href = "../pagination/#modifying-the-pagination-style" > setting the pagination style< / a > .< / p >
< hr / >
< h4 id = "page_size" > < a class = "toclink" href = "#page_size" > PAGE_SIZE< / a > < / h4 >
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< p > The default page size to use for pagination. If set to < code > None< / code > , pagination is disabled by default.< / p >
< p > Default: < code > None< / code > < / p >
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< h4 id = "paginate_by_param" > < a class = "toclink" href = "#paginate_by_param" > PAGINATE_BY_PARAM< / a > < / h4 >
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< hr / >
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< p > < strong > This setting has been removed.< / strong > < / p >
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< p > See the pagination documentation for further guidance on < a href = "../pagination/#modifying-the-pagination-style" > setting the pagination style< / a > .< / p >
< hr / >
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< h4 id = "max_paginate_by" > < a class = "toclink" href = "#max_paginate_by" > MAX_PAGINATE_BY< / a > < / h4 >
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< hr / >
< p > < strong > This setting is pending deprecation.< / strong > < / p >
< p > See the pagination documentation for further guidance on < a href = "../pagination/#modifying-the-pagination-style" > setting the pagination style< / a > .< / p >
< hr / >
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< h3 id = "search_param" > < a class = "toclink" href = "#search_param" > SEARCH_PARAM< / a > < / h3 >
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< p > The name of a query parameter, which can be used to specify the search term used by < code > SearchFilter< / code > .< / p >
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< p > Default: < code > search< / code > < / p >
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< h4 id = "ordering_param" > < a class = "toclink" href = "#ordering_param" > ORDERING_PARAM< / a > < / h4 >
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< p > The name of a query parameter, which can be used to specify the ordering of results returned by < code > OrderingFilter< / code > .< / p >
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< p > Default: < code > ordering< / code > < / p >
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< hr / >
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< h2 id = "versioning-settings" > < a class = "toclink" href = "#versioning-settings" > Versioning settings< / a > < / h2 >
< h4 id = "default_version" > < a class = "toclink" href = "#default_version" > DEFAULT_VERSION< / a > < / h4 >
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< p > The value that should be used for < code > request.version< / code > when no versioning information is present.< / p >
< p > Default: < code > None< / code > < / p >
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< h4 id = "allowed_versions" > < a class = "toclink" href = "#allowed_versions" > ALLOWED_VERSIONS< / a > < / h4 >
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< p > If set, this value will restrict the set of versions that may be returned by the versioning scheme, and will raise an error if the provided version if not in this set.< / p >
< p > Default: < code > None< / code > < / p >
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< h4 id = "version_parameter" > < a class = "toclink" href = "#version_parameter" > VERSION_PARAMETER< / a > < / h4 >
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< p > The string that should used for any versioning parameters, such as in the media type or URL query parameters.< / p >
< p > Default: < code > 'version'< / code > < / p >
< hr / >
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< h2 id = "authentication-settings" > < a class = "toclink" href = "#authentication-settings" > Authentication settings< / a > < / h2 >
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< p > < em > The following settings control the behavior of unauthenticated requests.< / em > < / p >
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< h4 id = "unauthenticated_user" > < a class = "toclink" href = "#unauthenticated_user" > UNAUTHENTICATED_USER< / a > < / h4 >
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< p > The class that should be used to initialize < code > request.user< / code > for unauthenticated requests.< / p >
< p > Default: < code > django.contrib.auth.models.AnonymousUser< / code > < / p >
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< h4 id = "unauthenticated_token" > < a class = "toclink" href = "#unauthenticated_token" > UNAUTHENTICATED_TOKEN< / a > < / h4 >
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< p > The class that should be used to initialize < code > request.auth< / code > for unauthenticated requests.< / p >
< p > Default: < code > None< / code > < / p >
< hr / >
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< h2 id = "test-settings" > < a class = "toclink" href = "#test-settings" > Test settings< / a > < / h2 >
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< p > < em > The following settings control the behavior of APIRequestFactory and APIClient< / em > < / p >
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< h4 id = "test_request_default_format" > < a class = "toclink" href = "#test_request_default_format" > TEST_REQUEST_DEFAULT_FORMAT< / a > < / h4 >
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< p > The default format that should be used when making test requests.< / p >
< p > This should match up with the format of one of the renderer classes in the < code > TEST_REQUEST_RENDERER_CLASSES< / code > setting.< / p >
< p > Default: < code > 'multipart'< / code > < / p >
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< h4 id = "test_request_renderer_classes" > < a class = "toclink" href = "#test_request_renderer_classes" > TEST_REQUEST_RENDERER_CLASSES< / a > < / h4 >
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< p > The renderer classes that are supported when building test requests.< / p >
< p > The format of any of these renderer classes may be used when constructing a test request, for example: < code > client.post('/users', {'username': 'jamie'}, format='json')< / code > < / p >
< p > Default:< / p >
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< pre > < code > (
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'rest_framework.renderers.MultiPartRenderer',
'rest_framework.renderers.JSONRenderer'
)
< / code > < / pre >
< hr / >
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< h2 id = "content-type-controls" > < a class = "toclink" href = "#content-type-controls" > Content type controls< / a > < / h2 >
< h4 id = "url_format_override" > < a class = "toclink" href = "#url_format_override" > URL_FORMAT_OVERRIDE< / a > < / h4 >
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< p > The name of a URL parameter that may be used to override the default content negotiation < code > Accept< / code > header behavior, by using a < code > format=…< / code > query parameter in the request URL.< / p >
< p > For example: < code > http://example.com/organizations/?format=csv< / code > < / p >
< p > If the value of this setting is < code > None< / code > then URL format overrides will be disabled.< / p >
< p > Default: < code > 'format'< / code > < / p >
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< h4 id = "format_suffix_kwarg" > < a class = "toclink" href = "#format_suffix_kwarg" > FORMAT_SUFFIX_KWARG< / a > < / h4 >
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< p > The name of a parameter in the URL conf that may be used to provide a format suffix. This setting is applied when using < code > format_suffix_patterns< / code > to include suffixed URL patterns.< / p >
< p > For example: < code > http://example.com/organizations.csv/< / code > < / p >
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< p > Default: < code > 'format'< / code > < / p >
< hr / >
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< h2 id = "date-and-time-formatting" > < a class = "toclink" href = "#date-and-time-formatting" > Date and time formatting< / a > < / h2 >
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< p > < em > The following settings are used to control how date and time representations may be parsed and rendered.< / em > < / p >
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< h4 id = "datetime_format" > < a class = "toclink" href = "#datetime_format" > DATETIME_FORMAT< / a > < / h4 >
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< p > A format string that should be used by default for rendering the output of < code > DateTimeField< / code > serializer fields. If < code > None< / code > , then < code > DateTimeField< / code > serializer fields will return Python < code > datetime< / code > objects, and the datetime encoding will be determined by the renderer.< / p >
< p > May be any of < code > None< / code > , < code > 'iso-8601'< / code > or a Python < a href = "http://docs.python.org/2/library/time.html#time.strftime" > strftime format< / a > string.< / p >
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< p > Default: < code > 'iso-8601'< / code > < / p >
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< h4 id = "datetime_input_formats" > < a class = "toclink" href = "#datetime_input_formats" > DATETIME_INPUT_FORMATS< / a > < / h4 >
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< p > A list of format strings that should be used by default for parsing inputs to < code > DateTimeField< / code > serializer fields.< / p >
< p > May be a list including the string < code > 'iso-8601'< / code > or Python < a href = "http://docs.python.org/2/library/time.html#time.strftime" > strftime format< / a > strings.< / p >
< p > Default: < code > ['iso-8601']< / code > < / p >
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< h4 id = "date_format" > < a class = "toclink" href = "#date_format" > DATE_FORMAT< / a > < / h4 >
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< p > A format string that should be used by default for rendering the output of < code > DateField< / code > serializer fields. If < code > None< / code > , then < code > DateField< / code > serializer fields will return Python < code > date< / code > objects, and the date encoding will be determined by the renderer.< / p >
< p > May be any of < code > None< / code > , < code > 'iso-8601'< / code > or a Python < a href = "http://docs.python.org/2/library/time.html#time.strftime" > strftime format< / a > string.< / p >
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< p > Default: < code > 'iso-8601'< / code > < / p >
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< h4 id = "date_input_formats" > < a class = "toclink" href = "#date_input_formats" > DATE_INPUT_FORMATS< / a > < / h4 >
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< p > A list of format strings that should be used by default for parsing inputs to < code > DateField< / code > serializer fields.< / p >
< p > May be a list including the string < code > 'iso-8601'< / code > or Python < a href = "http://docs.python.org/2/library/time.html#time.strftime" > strftime format< / a > strings.< / p >
< p > Default: < code > ['iso-8601']< / code > < / p >
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< h4 id = "time_format" > < a class = "toclink" href = "#time_format" > TIME_FORMAT< / a > < / h4 >
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< p > A format string that should be used by default for rendering the output of < code > TimeField< / code > serializer fields. If < code > None< / code > , then < code > TimeField< / code > serializer fields will return Python < code > time< / code > objects, and the time encoding will be determined by the renderer.< / p >
< p > May be any of < code > None< / code > , < code > 'iso-8601'< / code > or a Python < a href = "http://docs.python.org/2/library/time.html#time.strftime" > strftime format< / a > string.< / p >
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< p > Default: < code > 'iso-8601'< / code > < / p >
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< h4 id = "time_input_formats" > < a class = "toclink" href = "#time_input_formats" > TIME_INPUT_FORMATS< / a > < / h4 >
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< p > A list of format strings that should be used by default for parsing inputs to < code > TimeField< / code > serializer fields.< / p >
< p > May be a list including the string < code > 'iso-8601'< / code > or Python < a href = "http://docs.python.org/2/library/time.html#time.strftime" > strftime format< / a > strings.< / p >
< p > Default: < code > ['iso-8601']< / code > < / p >
< hr / >
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< h2 id = "encodings" > < a class = "toclink" href = "#encodings" > Encodings< / a > < / h2 >
< h4 id = "unicode_json" > < a class = "toclink" href = "#unicode_json" > UNICODE_JSON< / a > < / h4 >
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< p > When set to < code > True< / code > , JSON responses will allow unicode characters in responses. For example:< / p >
< pre > < code > {"unicode black star":"★"}
< / code > < / pre >
< p > When set to < code > False< / code > , JSON responses will escape non-ascii characters, like so:< / p >
< pre > < code > {"unicode black star":"\u2605"}
< / code > < / pre >
< p > Both styles conform to < a href = "http://www.ietf.org/rfc/rfc4627.txt" > RFC 4627< / a > , and are syntactically valid JSON. The unicode style is preferred as being more user-friendly when inspecting API responses.< / p >
< p > Default: < code > True< / code > < / p >
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< h4 id = "compact_json" > < a class = "toclink" href = "#compact_json" > COMPACT_JSON< / a > < / h4 >
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< p > When set to < code > True< / code > , JSON responses will return compact representations, with no spacing after < code > ':'< / code > and < code > ','< / code > characters. For example:< / p >
< pre > < code > {"is_admin":false,"email":"jane@example"}
< / code > < / pre >
< p > When set to < code > False< / code > , JSON responses will return slightly more verbose representations, like so:< / p >
< pre > < code > {"is_admin": false, "email": "jane@example"}
< / code > < / pre >
< p > The default style is to return minified responses, in line with < a href = "https://github.com/interagent/http-api-design#keep-json-minified-in-all-responses" > Heroku's API design guidelines< / a > .< / p >
< p > Default: < code > True< / code > < / p >
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< h4 id = "coerce_decimal_to_string" > < a class = "toclink" href = "#coerce_decimal_to_string" > COERCE_DECIMAL_TO_STRING< / a > < / h4 >
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< p > When returning decimal objects in API representations that do not support a native decimal type, it is normally best to return the value as a string. This avoids the loss of precision that occurs with binary floating point implementations.< / p >
< p > When set to < code > True< / code > , the serializer < code > DecimalField< / code > class will return strings instead of < code > Decimal< / code > objects. When set to < code > False< / code > , serializers will return < code > Decimal< / code > objects, which the default JSON encoder will return as floats.< / p >
< p > Default: < code > True< / code > < / p >
< hr / >
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< h2 id = "view-names-and-descriptions" > < a class = "toclink" href = "#view-names-and-descriptions" > View names and descriptions< / a > < / h2 >
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< p > < strong > The following settings are used to generate the view names and descriptions, as used in responses to < code > OPTIONS< / code > requests, and as used in the browsable API.< / strong > < / p >
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< h4 id = "view_name_function" > < a class = "toclink" href = "#view_name_function" > VIEW_NAME_FUNCTION< / a > < / h4 >
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< p > A string representing the function that should be used when generating view names.< / p >
< p > This should be a function with the following signature:< / p >
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< pre > < code > view_name(cls, suffix=None)
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< / code > < / pre >
< ul >
< li > < code > cls< / code > : The view class. Typically the name function would inspect the name of the class when generating a descriptive name, by accessing < code > cls.__name__< / code > .< / li >
< li > < code > suffix< / code > : The optional suffix used when differentiating individual views in a viewset.< / li >
< / ul >
< p > Default: < code > 'rest_framework.views.get_view_name'< / code > < / p >
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< h4 id = "view_description_function" > < a class = "toclink" href = "#view_description_function" > VIEW_DESCRIPTION_FUNCTION< / a > < / h4 >
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< p > A string representing the function that should be used when generating view descriptions.< / p >
< p > This setting can be changed to support markup styles other than the default markdown. For example, you can use it to support < code > rst< / code > markup in your view docstrings being output in the browsable API.< / p >
< p > This should be a function with the following signature:< / p >
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< pre > < code > view_description(cls, html=False)
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< / code > < / pre >
< ul >
< li > < code > cls< / code > : The view class. Typically the description function would inspect the docstring of the class when generating a description, by accessing < code > cls.__doc__< / code > < / li >
< li > < code > html< / code > : A boolean indicating if HTML output is required. < code > True< / code > when used in the browsable API, and < code > False< / code > when used in generating < code > OPTIONS< / code > responses.< / li >
< / ul >
< p > Default: < code > 'rest_framework.views.get_view_description'< / code > < / p >
< hr / >
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< h2 id = "miscellaneous-settings" > < a class = "toclink" href = "#miscellaneous-settings" > Miscellaneous settings< / a > < / h2 >
< h4 id = "exception_handler" > < a class = "toclink" href = "#exception_handler" > EXCEPTION_HANDLER< / a > < / h4 >
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< p > A string representing the function that should be used when returning a response for any given exception. If the function returns < code > None< / code > , a 500 error will be raised.< / p >
< p > This setting can be changed to support error responses other than the default < code > {"detail": "Failure..."}< / code > responses. For example, you can use it to provide API responses like < code > {"errors": [{"message": "Failure...", "code": ""} ...]}< / code > .< / p >
< p > This should be a function with the following signature:< / p >
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< pre > < code > exception_handler(exc, context)
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< / code > < / pre >
< ul >
< li > < code > exc< / code > : The exception.< / li >
< / ul >
< p > Default: < code > 'rest_framework.views.exception_handler'< / code > < / p >
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< h4 id = "non_field_errors_key" > < a class = "toclink" href = "#non_field_errors_key" > NON_FIELD_ERRORS_KEY< / a > < / h4 >
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< p > A string representing the key that should be used for serializer errors that do not refer to a specific field, but are instead general errors.< / p >
< p > Default: < code > 'non_field_errors'< / code > < / p >
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< h4 id = "url_field_name" > < a class = "toclink" href = "#url_field_name" > URL_FIELD_NAME< / a > < / h4 >
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< p > A string representing the key that should be used for the URL fields generated by < code > HyperlinkedModelSerializer< / code > .< / p >
< p > Default: < code > 'url'< / code > < / p >
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< h4 id = "num_proxies" > < a class = "toclink" href = "#num_proxies" > NUM_PROXIES< / a > < / h4 >
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< p > An integer of 0 or more, that may be used to specify the number of application proxies that the API runs behind. This allows throttling to more accurately identify client IP addresses. If set to < code > None< / code > then less strict IP matching will be used by the throttle classes.< / p >
< p > Default: < code > None< / code > < / p >
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< / div > <!-- /span -->
< / div > <!-- /row -->
< / div > <!-- /.fluid - container -->
< / div > <!-- /.body content -->
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< div id = "push" > < / div >
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< / div > <!-- /.wrapper -->
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< footer class = "span12" >
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< p > Documentation built with < a href = "http://www.mkdocs.org/" > MkDocs< / a > .
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< / p >
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< / footer >
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<!-- Le javascript
================================================== -->
<!-- Placed at the end of the document so the pages load faster -->
< script src = "../../js/jquery-1.8.1-min.js" > < / script >
< script src = "../../js/prettify-1.0.js" > < / script >
< script src = "../../js/bootstrap-2.1.1-min.js" > < / script >
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< script src = "https://fund.django-rest-framework.org/sidebar_include.js" > < / script >
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< script > var base _url = '../..' ; < / script >
< script src = "../../mkdocs/js/require.js" > < / script >
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< script src = "../../js/theme.js" > < / script >
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< script >
var shiftWindow = function() {
scrollBy(0, -50)
};
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if (location.hash) shiftWindow();
window.addEventListener("hashchange", shiftWindow);
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$('.dropdown-menu').on('click touchstart', function(event) {
event.stopPropagation();
});
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// Dynamically force sidenav/dropdown to no higher than browser window
$('.side-nav, .dropdown-menu').css('max-height', window.innerHeight - 130);
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$(function() {
$(window).resize(function() {
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$('.side-nav, .dropdown-menu').css('max-height', window.innerHeight - 130);
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});
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});
< / script >
< / body >
< / html >
