Throttling for rate limiting in Django - Mini Project: Build & Apply

Throttling for rate limiting in Django

📖 Scenario: You are building a simple Django API that serves user data. To protect your API from too many requests, you want to add throttling to limit how often a user can call the API.

🎯 Goal: Build a Django REST Framework API view with throttling enabled to limit requests to 5 per minute per user.

📋 What You'll Learn

Create a Django REST Framework API view that returns a simple JSON response.

Add a throttle class to limit requests to 5 per minute per user.

Configure the throttle rate in Django settings.

Apply the throttle class to the API view.

💡 Why This Matters

🌍 Real World

APIs often need protection from too many requests to avoid overload or abuse. Throttling helps keep services stable and fair for all users.

💼 Career

Understanding how to implement throttling is important for backend developers working with APIs to ensure performance and security.

1

Create a simple API view

Create a Django REST Framework API view called UserDataView that returns a JSON response with {"message": "Hello, user!"}. Use APIView and define a get method that returns Response({"message": "Hello, user!"}).

Django

from rest_framework.views import APIView
from rest_framework.response import Response

# Your code here

Need a hint?

Import APIView and Response from rest_framework. Define a class UserDataView inheriting from APIView. Add a get method that returns the JSON response.

2

Set throttle rate in settings

In your Django settings.py, add a dictionary called REST_FRAMEWORK with a key 'DEFAULT_THROTTLE_RATES' set to {'user': '5/minute'} to limit users to 5 requests per minute.

Django

from rest_framework.views import APIView
from rest_framework.response import Response

class UserDataView(APIView):
    def get(self, request):
        return Response({"message": "Hello, user!"})

# In settings.py
REST_FRAMEWORK = {
    # Your code here
}

Need a hint?

In settings.py, define REST_FRAMEWORK dictionary with DEFAULT_THROTTLE_RATES key. Set the user throttle rate to '5/minute'.

3

Import and add throttle class

Import UserRateThrottle from rest_framework.throttling. Add a class attribute throttle_classes to UserDataView and set it to a list containing UserRateThrottle.

Django

from rest_framework.views import APIView
from rest_framework.response import Response
from rest_framework.throttling import UserRateThrottle

class UserDataView(APIView):
    # Your code here
    def get(self, request):
        return Response({"message": "Hello, user!"})

# In settings.py
REST_FRAMEWORK = {
    'DEFAULT_THROTTLE_RATES': {
        'user': '5/minute'
    }
}

Need a hint?

Import UserRateThrottle and add throttle_classes = [UserRateThrottle] inside UserDataView.

4

Add URL pattern for the API view

In your Django app's urls.py, import UserDataView and add a URL pattern path('user-data/', UserDataView.as_view()) to expose the API at /user-data/.

Django

from django.urls import path
from .views import UserDataView

urlpatterns = [
    # Your code here
]

Need a hint?

Import UserDataView from views. Add a path for 'user-data/' that calls UserDataView.as_view().