Authentication in Django

In this tutorial we will learn about the authentication in dajago.

Authentication is the process of verifying the identity of a user, device, or application. In web development, authentication is used to verify the identity of users who want to access restricted areas of a website or application.

In Django, authentication is the process of verifying the identity of a user who wants to access protected views, pages, or functionality of a website or application. Django provides built-in authentication views, forms, and models to make it easy to implement user authentication in your application.

When a user tries to access a protected view or page, Django checks if the user is authenticated. If the user is not authenticated, Django redirects them to the login page. After the user enters their credentials and submits the login form, Django verifies the credentials and creates a session for the user. The session allows Django to keep track of the user's authentication status across multiple requests.

Django supports several authentication backends, including username and password authentication, social authentication (using OAuth or OpenID), and token-based authentication (using JSON Web Tokens). You can also create custom authentication backends to integrate with external authentication systems or to implement custom authentication logic.

Overall, authentication is an essential part of web development and security. By implementing authentication in your Django application, you can ensure that only authorized users can access sensitive information or functionality.

There are many Authentication Process in Django like:

1.Basic Authentication

2.Session Authentication

3.Token Authentication

4.JWT Authentication

5.Social Authentication

6.Two-factor Authentication

7.Custom Authentication

 

Django supports several types of authentication, including:

 

Username and password authentication: This is the most common form of authentication, where users provide a username and password to authenticate themselves. Django provides built-in views and forms to handle this type of authentication.

 

Token-based authentication: This type of authentication uses a token (such as a JSON Web Token) to authenticate users instead of a username and password. Token-based authentication is useful for implementing stateless authentication in RESTful APIs, where users need to authenticate on every request.

 

Social authentication: Social authentication allows users to authenticate using their social media accounts, such as Facebook, Twitter, or Google. Django provides built-in support for social authentication using OAuth or OpenID.

In this tutorial we will learn how to setup, configuration, and customization Django-AllAuth and how to social login using google.

AllAuth

Installation

Install allauth package

pip install django-allauth

IF there is some dependency issue then try these command

pip install --upgrade pip
pip install --upgrade setuptools

settings.py

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.request',
            ],
        },
    },
]

AUTHENTICATION_BACKENDS = [
    'django.contrib.auth.backends.ModelBackend',
    'allauth.account.auth_backends.AuthenticationBackend',
]

INSTALLED_APPS = [
    'django.contrib.auth',
    'django.contrib.messages',
    'django.contrib.sites',

    'allauth',
    'allauth.account',
    'allauth.socialaccount',

    # include providers
    'allauth.socialaccount.providers.google',
    'allauth.socialaccount.providers.facebook',
    'allauth.socialaccount.providers.github',
    'allauth.socialaccount.providers.twitter',
]

SITE_ID = 1

SOCIALACCOUNT_PROVIDERS = {
    'google': {
        'SCOPE': [
            'profile',
            'email',
        ],
        'APP': {
            'client_id': '747309140873-sqitn722gku65q.apps.googleusercontent.com',
            'secret': 'ip1-mGTtRc31XGsxrfuZ8CLB',
            'key': ''
        }
    }
}

urls.py

urlpatterns = [
    path('accounts/', include('allauth.urls')),
]

Run migrate command

python manage.py migrate

Now add your domain in Site model in admin panel.

accounts/login/ you can see login page

accounts/logout/  used to logout

       

Two-factor authentication: Two-factor authentication requires users to provide two forms of authentication to access protected resources. This can include something the user knows (such as a password) and something the user has (such as a mobile device or security token).

 

Custom authentication: You can also create custom authentication backends to integrate with external authentication systems or to implement custom authentication logic. Custom authentication backends allow you to use alternative authentication methods, such as LDAP, SAML, or Kerberos.

Overall, Django provides a flexible and extensible authentication framework that can be customized to meet the needs of your application.