How To Add Http Headers In Django Response

This example will tell you how to add HTTP response headers in Django source code. This example is based on Django Bootstrap3 Example, but you can also create a new Django project to run this example.

1. Add HTTP Response Headers In Django View Function.

1. The HTTP response header is always added in the Django project view function before return the HttpResponse object to the client.
2. So edit the DjangoHelloWorld / dept_emp / views.py file home_page function as below.

   def home_page(request):
   
       # get the django.http.response.HttpResponse object
       resp = render(request, 'dept_emp/home_page.html')
   
       # set http response header and value.
       resp['Cache-Control'] = 'public,max-age=100000'
   
       resp['Vary'] = 'Accept-Encoding'
       # return the HttpResponse object. 
       return resp

2. Verify The HTTP Response Header & Values Via Google Chrome Developer Tools.

1. Start the Django project application.
2. Browse the web url http://127.0.0.1:8000/dept_emp/ in google chrome.
3. Right-click the page, click Inspect menu item in the popup menu list.
4. Click the Network tab in the chrome inspector window.
5. Select a web resource in the left panel Name list, click the Headers tab in the right panel.
6. Now you can see the added HTTP response headers Cache-Control: public,max-age=100000, and Vary:Accept-Encoding.