Per-view caching in Django - Mini Project: Build & Apply

Implementing Per-view Caching in Django

📖 Scenario: You are building a simple Django web application that shows a list of products. To improve performance, you want to cache the output of the product list page so that repeated visits load faster.

🎯 Goal: Learn how to add per-view caching to a Django view function to speed up page loading by storing the rendered response for a set time.

📋 What You'll Learn

Create a Django view function called product_list that returns a simple HTTP response.

Add a cache timeout variable called CACHE_TTL set to 60 seconds.

Apply the @cache_page decorator with CACHE_TTL to the product_list view.

Ensure the final code includes the necessary import for cache_page and the view returns the expected response.

💡 Why This Matters

🌍 Real World

Per-view caching is used in web applications to speed up page loading by storing the output of views temporarily. This reduces server load and improves user experience.

💼 Career

Understanding per-view caching is important for backend developers working with Django to optimize web application performance and scalability.

1

Create the product_list view function

Create a Django view function called product_list that returns an HttpResponse with the text "Product list page". Import HttpResponse from django.http.

Django

from django.http import HttpResponse

# Create the product_list view function
# Your code here

Need a hint?

Remember to define a function named product_list that takes request as a parameter and returns HttpResponse("Product list page").

2

Add a cache timeout variable CACHE_TTL

Add a variable called CACHE_TTL and set it to 60 to represent the cache timeout in seconds.

Django

from django.http import HttpResponse

CACHE_TTL = 60

# Your code here

Need a hint?

Define CACHE_TTL = 60 above the view function.

3

Import and apply the @cache_page decorator

Import cache_page from django.views.decorators.cache. Then apply the @cache_page(CACHE_TTL) decorator above the product_list view function.

Django

from django.http import HttpResponse
from django.views.decorators.cache import cache_page

CACHE_TTL = 60

# Apply the @cache_page decorator here
# Your code here

Need a hint?

Use @cache_page(CACHE_TTL) just above the def product_list(request): line.

4

Complete the view with caching applied

Ensure the final code includes the import of HttpResponse, the import of cache_page, the CACHE_TTL variable set to 60, and the product_list view decorated with @cache_page(CACHE_TTL) returning the correct response.

Django

from django.http import HttpResponse
from django.views.decorators.cache import cache_page

CACHE_TTL = 60

@cache_page(CACHE_TTL)
# Your code here

Need a hint?

Check that all parts are present and the view is decorated correctly.