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Getting POST request IP address in Django
In Django web applications, tracking the IP address of POST requests is essential for security monitoring, rate limiting, and access control. The django-ipware package provides a reliable way to extract client IP addresses from HTTP requests.
Installation
First, install the django-ipware package using pip ?
pip install django-ipware
No additional configuration is required after installation.
Creating the HTML Template
Create a simple HTML form in templates/home.html to test POST requests ?
<!DOCTYPE html>
<html>
<head>
<title>IP Address Tracker</title>
</head>
<body>
<h1>Test POST Request</h1>
<form method="post" action="/">
{% csrf_token %}
<input type="text" name="message" placeholder="Enter a message" />
<input type="submit" value="Submit" />
</form>
</body>
</html>
URL Configuration
Configure the URL pattern in your app's urls.py file ?
from django.urls import path
from . import views
urlpatterns = [
path('', views.home, name='home'),
]
View Implementation
Implement the view function to capture and display the client IP address ?
from django.shortcuts import render
from django.http import HttpResponse
from ipware import get_client_ip
def home(request):
if request.method == "POST":
# Extract client IP address
client_ip, is_routable = get_client_ip(request)
# Display IP information
print(f"Client IP: {client_ip}")
print(f"Is routable: {is_routable}")
# Return response with IP info
return HttpResponse(f"Your IP address is: {client_ip}")
return render(request, 'home.html')
Understanding the get_client_ip() Function
The get_client_ip() function returns two values ?
- client_ip: The actual IP address of the client
- is_routable: Boolean indicating if the IP is publicly routable (False for localhost/private IPs)
Example Output
When testing on localhost, you'll see output similar to this ?
Client IP: 127.0.0.1 Is routable: False [23/Aug/2021 13:34:58] "POST / HTTP/1.1" 200 9999
Common Use Cases
Here are practical applications for IP tracking ?
from django.shortcuts import render
from django.http import JsonResponse
from ipware import get_client_ip
from collections import defaultdict
# Simple rate limiting example
request_counts = defaultdict(int)
def rate_limited_view(request):
if request.method == "POST":
client_ip, is_routable = get_client_ip(request)
# Track requests per IP
request_counts[client_ip] += 1
# Block if too many requests
if request_counts[client_ip] > 10:
return JsonResponse({
'error': 'Too many requests from your IP',
'ip': client_ip
}, status=429)
return JsonResponse({
'success': True,
'ip': client_ip,
'request_count': request_counts[client_ip]
})
return render(request, 'home.html')
Handling Proxy Servers
The django-ipware package automatically handles common proxy headers like X-Forwarded-For and X-Real-IP, making it reliable for production environments behind load balancers or CDNs.
Conclusion
The django-ipware package provides a simple and reliable way to extract client IP addresses from Django POST requests. Use this for security monitoring, rate limiting, and access control in your web applications.
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