Session framework configuration in Django - Mini Project: Build & Apply

Session Framework Configuration in Django

📖 Scenario: You are building a simple Django web application that needs to remember user information across different pages. To do this, you will configure Django's session framework step-by-step.

🎯 Goal: Configure Django's session framework by setting up the session engine, adding session middleware, and using sessions in a view.

📋 What You'll Learn

Create a Django setting for the session engine

Add session middleware to the middleware list

Write a view function that sets a session variable

Write a view function that reads the session variable

💡 Why This Matters

🌍 Real World

Web applications often need to remember user information like login status or preferences across pages. Django's session framework helps store this data securely on the server.

💼 Career

Understanding session management is essential for backend web developers working with Django to build user-friendly and secure web applications.

1

Set the session engine in Django settings

In the Django settings file, create a variable called SESSION_ENGINE and set it to the string 'django.contrib.sessions.backends.db' to use the database-backed session engine.

Django

# Your code here

Need a hint?

The session engine controls where session data is stored. The database backend is the default and stores sessions in your database.

2

Add session middleware to the middleware list

In the Django settings file, add the string 'django.contrib.sessions.middleware.SessionMiddleware' to the MIDDLEWARE list. Make sure it is included as one of the middleware entries.

Django

SESSION_ENGINE = 'django.contrib.sessions.backends.db'
MIDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'django.middleware.common.CommonMiddleware',
    # Add session middleware below
]

Need a hint?

Middleware processes requests and responses. SessionMiddleware enables session support in your app.

3

Create a view that sets a session variable

In your Django views file, write a function called set_session that takes a request argument and sets request.session['favorite_color'] to the string 'blue'. Return a simple HttpResponse with the text 'Session set'.

Django

SESSION_ENGINE = 'django.contrib.sessions.backends.db'
MIDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
]

from django.http import HttpResponse

def set_session(request):
    # Your code here

Need a hint?

Use request.session like a dictionary to store data for the user.

4

Create a view that reads the session variable

In your Django views file, write a function called get_session that takes a request argument and reads the value of request.session['favorite_color']. Return an HttpResponse with the text 'Favorite color is: ' followed by the session value. Use request.session.get('favorite_color', 'unknown') to avoid errors if the session key is missing.

Django

SESSION_ENGINE = 'django.contrib.sessions.backends.db'
MIDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
]

from django.http import HttpResponse

def set_session(request):
    request.session['favorite_color'] = 'blue'
    return HttpResponse('Session set')

def get_session(request):
    # Your code here

Need a hint?

Use request.session.get() to safely read session data with a default value.