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How to get the user IP address in Django

Abhilash

Grokking Modern System Design Interview for Engineers & Managers

Ace your System Design Interview and take your career to the next level. Learn to handle the design of applications like Netflix, Quora, Facebook, Uber, and many more in a 45-min interview. Learn the RESHADED framework for architecting web-scale applications by determining requirements, constraints, and assumptions before diving into a step-by-step design process.

The HTTP headers X-Forwarded-For (XFF) or REMOTE_ADDR are used to get the original requested IP address.

The IP address stored in the header will be a comma separated list of IP addresses. For example, ip_addr_1, ip_addr_2, ip_addr_3.

In Django, the request headers are obtained from the request object using the META attribute of the request object.

Syntax

HttpRequest.META

Return value

The META attribute returns a dictionary consisting of all available HTTP headers.

Example

Only relevant code to obtain the IP address given the request object is shown. The code can be placed at relevant places in the Django app to get the client’s IP address.

def get_client_ip_address(request):
req_headers = request.META
x_forwarded_for_value = req_headers.get('HTTP_X_FORWARDED_FOR')
if x_forwarded_for_value:
ip_addr = x_forwarded_for_value.split(',')[-1].strip()
else:
ip_addr = req_headers.get('REMOTE_ADDR')
return ip_addr
Django snippet

Explanation

  • Line 2: From the META attribute dictionary, we obtain the value for the HTTP header HTTP_X-Forwarded-For.
  • Lines 3–6: If the HTTP header HTTP_X-Forwarded-For is none, then we can get the IP using the REMOTE_ADDR header.

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django

CONTRIBUTOR

Abhilash
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Grokking Modern System Design Interview for Engineers & Managers

Ace your System Design Interview and take your career to the next level. Learn to handle the design of applications like Netflix, Quora, Facebook, Uber, and many more in a 45-min interview. Learn the RESHADED framework for architecting web-scale applications by determining requirements, constraints, and assumptions before diving into a step-by-step design process.

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