Django HttpResponseNotAllowed: return Not Allowed Response

HttpResponseNotAllowed is a subclass of HttpResponse that returns a HTTP response with 405 status.

1. Django HttpResponseNotAllowed with examples

To understand how HttpResponseNotAllowed is working, let's write a simple view:

importing HttpResponseNotAllowed:

from django.http import HttpResponseNotAllowed

example:

def not_allowed(request):
    return HttpResponseNotAllowed(["GET"])

result:

response's status:

Why we need HttpResponseNotAllowed?

For example, we have a task view, and we want to reject the user request if he tries to get the view page.

Let's see the example:

def get_user_name(request):
    if request.method == "POST":
        user = request.POST.get('user', None)
        return HttpResponse(user)
    
    return HttpResponseNotAllowed(["GET"])    

4. How to solve HttpResponseNotAllowed is not defined

issue's output:

To solve this issue, you need to import the subclass like:

from django.http import HttpResponseNotAllowed