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The Response class in REST framework is similar to HTTPResponse, except that
it is initialized with unrendered data, instead of a pre-rendered string.
The appropriate renderer is called during Django's template response rendering.
from http.client import responses
from django.template.response import SimpleTemplateResponse
from rest_framework.serializers import Serializer
class Response(SimpleTemplateResponse):
An HttpResponse that allows its data to be rendered into
arbitrary media types.
def __init__(self, data=None, status=None,
template_name=None, headers=None,
exception=False, content_type=None):
Alters the init arguments slightly.
For example, drop 'template_name', and instead use 'data'.
Setting 'renderer' and 'media_type' will typically be deferred,
For example being set automatically by the `APIView`.
super().__init__(None, status=status)
if isinstance(data, Serializer):
msg = (
'You passed a Serializer instance as data, but '
'probably meant to pass serialized `.data` or '
'`.error`. representation.'
raise AssertionError(msg) = data
self.template_name = template_name
self.exception = exception
self.content_type = content_type
if headers:
for name, value in headers.items():
self[name] = value
def rendered_content(self):
renderer = getattr(self, 'accepted_renderer', None)
accepted_media_type = getattr(self, 'accepted_media_type', None)
context = getattr(self, 'renderer_context', None)
assert renderer, ".accepted_renderer not set on Response"
assert accepted_media_type, ".accepted_media_type not set on Response"
assert context is not None, ".renderer_context not set on Response"
context['response'] = self
media_type = renderer.media_type
charset = renderer.charset
content_type = self.content_type
if content_type is None and charset is not None:
content_type = "{}; charset={}".format(media_type, charset)
elif content_type is None:
content_type = media_type
self['Content-Type'] = content_type
ret = renderer.render(, accepted_media_type, context)
if isinstance(ret, str):
assert charset, (
'renderer returned unicode, and did not specify '
'a charset value.'
return ret.encode(charset)
if not ret:
del self['Content-Type']
return ret
def status_text(self):
Returns reason text corresponding to our HTTP response status code.
Provided for convenience.
return responses.get(self.status_code, '')
def __getstate__(self):
Remove attributes from the response that shouldn't be cached.
state = super().__getstate__()
for key in (
'accepted_renderer', 'renderer_context', 'resolver_match',
'client', 'request', 'json', 'wsgi_request'
if key in state:
del state[key]
state['_closable_objects'] = []
return state
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