How to Use Django HttpResponseBadRequest

Django HttpResponseBadRequest is a subclass of HttpResponse that returns an HTTP response with 400 status (bad requests).

In this tutorial, we'll learn how to use HttpResponseBadRequest with simple examples.

1. Using HttpResponseBadRequest with examples

first, we need to import HttpResponseBadRequest:

fromdjango.httpimport HttpResponseBadRequest

example:

In the following example, we'll write a simple view that returns a response with 400 status Code.

defbad_request(request):
    return HttpResponseBadRequest("We cannot process the request")

output:

request's status:

You can also use HTML content with HttpResponseBadRequest:

defbad_request(request):
    return HttpResponseBadRequest("<h1>We cannot process the request</h1>")

Output:

Page's source:

4. How to solve HttpResponseBadRequest is not defined

issue's output:

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

fromdjango.httpimport HttpResponseBadRequest