Django login and register Tutorial

In this tutorial, we will be creating a user authentication system using Django that includes user registration and login functionality. Django's built-in authentication system makes it easy to implement these features while following best practices.

Prerequisites

Before we get started, ensure you have the following

•    Python installed on your system
•    Django installed (use pip install django)
•    A basic understanding of Django’s MVC architecture

Setting Up the Project

1.    Create a New Django Project

django-admin startproject auth_project
cd auth_project

2.    Create a New Django App

Python manage.py startapp accounts

3.    Register the App Add ‘accounts’ to the INSTALLED_APPS list your settings.py file.

INSTALLED_APPS = [
    ...,
    'accounts',
]

Creating the User Model

We’ll use Django’s default user model. If you need a custom user model, Refer to Django’s Custom user model documentation

Building the Registration View

1.    Create a Registration From

In accounts/forms.py

from django import forms
from django.contrib.auth.models import User

class UserRegistrationForm(forms.ModelForm):
    password = forms.CharField(widget=forms.PasswordInput, label='Password')
    confirm_password = forms.CharField(widget=forms.PasswordInput, label='Confirm Password')

    class Meta:
        model = User
        fields = ['username', 'email', 'password']

    def clean(self):
        cleaned_data = super().clean()
        password = cleaned_data.get('password')
        confirm_password = cleaned_data.get('confirm_password')

        if password != confirm_password:
            raise forms.ValidationError("Passwords do not match")

2.    Create the Registration View

In accounts/views.py

from django.shortcuts import render, redirect
from .forms import UserRegistrationForm

def register(request):
    if request.method == 'POST':
        form = UserRegistrationForm(request.POST)
        if form.is_valid():
            form.save()
            return redirect('login')
    else:
        form = UserRegistrationForm()
    return render(request, 'accounts/register.html', {'form': form})

3.    Creating the Registration Template

In accounts/templates/accounts/register.html

<h2>Register</h2>
<form method="post">
    {% csrf_token %}
    {{ form.as_p }}
    <button type="submit">Register</button>
</form>

Building the Login View

1.    Create the Login View

Use Django’s built-in LoginView.
In accounts/views.py

from django.contrib.auth.views import LoginView
class UserLoginView(LoginView):
    template_name = 'accounts/login.html'

2.    Create the Login Template

In accounts/templates/accounts/login.html

<h2>Login</h2>
<form method="post">
    {% csrf_token %}
    {{ form.as_p }}
    <button type="submit">Register</button>
</form>

Configuring URLs

In accounts/urls.py

from django.urls import path
from .views import register, UserLoginView

urlpatterns = [
    path('register/', register, name='register'),
    path('login/', UserLoginView.as_view(), name='login'),
]

In auth_project/urls.py

from django.contrib import admin
from django.urls import path, include
urlpatterns = [
    path('admin/', admin.site.urls),
    path('accounts/', include('accounts.urls')),
]

Run Application 

python manage.py runserver

Visit http://127.0.0.1:8000/accounts/register/ to register a new user and

http://127.0.0.1:8000/accounts/login/ to log in.

Conclusion

Congratulations! You have successfully implemented a basic login and registration system in Django. From here, you can extend the functionality by adding password reset, email verification, and user profile.
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