How can I return HTTP status code 204 from a Django view?
DjangoDjango Problem Overview
I want to return status code 204 No Content from a Django view. It is in response to an automatic POST which updates a database and I just need to indicate the update was successful (without redirecting the client).
There are subclasses of HttpResponse to handle most other codes but not 204.
What is the simplest way to do this?
Django Solutions
Solution 1 - Django
return HttpResponse(status=204)
Solution 2 - Django
When using render, there is a status keyword argument.
return render(request, 'template.html', status=204)
(Note that in the case of status 204 there shouldn't be a response body, but this method is useful for other status codes.)
Solution 3 - Django
Either what Steve Mayne answered, or build your own by subclassing HttpResponse:
from django.http import HttpResponse
class HttpResponseNoContent(HttpResponse):
status_code = 204
def my_view(request):
return HttpResponseNoContent()
Solution 4 - Django
The other answers work mostly, but they do not produce a fully compliant HTTP 204 responses, because they still contain a content header. This can result in WSGI warnings and is picked up by test tools like Django Web Test.
Here is an improved class for a HTTP 204 response that is compliant. (based on this Django ticket):
from django.http import HttpResponse
class HttpResponseNoContent(HttpResponse):
"""Special HTTP response with no content, just headers.
The content operations are ignored.
"""
def __init__(self, content="", mimetype=None, status=None, content_type=None):
super().__init__(status=204)
if "content-type" in self._headers:
del self._headers["content-type"]
def _set_content(self, value):
pass
def _get_content(self, value):
pass
def my_view(request):
return HttpResponseNoContent()