Django Signup and Login ,Logout built in features

Django signup and login and Logout Code step by step guidance :-

Step 1:-

Models.py file code of your app folder:-

from django.db import models

Step 2:- create forms.py file in your app folder

forms.py file code :-

from django import forms

from django.contrib.auth.forms import UserCreationForm

from django.contrib.auth.models import User

class NewUserForm(UserCreationForm):

email = forms.EmailField(required=True)

class Meta:

model = User

fields = ["username", "email", "password1", "password2"]

Step 3:- urls.py file of app folder:-

from django.urls import path

from .import views

urlpatterns=[

path('',views.index,name='index'),

path('home/',views.home,name='home'),

path('homepage/',views.homepage,name='homepage'),

path("register", views.register_request, name="register"),

path("login", views.login_request, name="login"),

path("logout", views.logout_request, name= "logout"),

]

Step 4:- views.py file of app folder:-

from urllib import request

from django.shortcuts import render,redirect

from .forms import NewUserForm

from django.contrib.auth import login, authenticate,logout #add this

from django.contrib import messages

from django.contrib.auth.forms import AuthenticationForm

def homepage(request):

return render(request, "homepage.html")

def home(request):

serviceData=”Registration successful”

data={'serviceData':serviceData

}

return render(request,"home.html",data)

def login_request(request):

if request.method == "POST":

form = AuthenticationForm(request, data=request.POST)

if form.is_valid():

username = form.cleaned_data.get('username')

password = form.cleaned_data.get('password')

user = authenticate(username=username, password=password)

if user is not None:

messages.info(request, f"You are now logged in as {username}.")

return redirect("homepage")

else:

messages.error(request,"Invalid username or password.")

else:

messages.error(request,"Invalid username or password.")

form = AuthenticationForm()

return render(request, 'login.html', context={"login_form":form})

def register_request(request):

if request.method == "POST":

form = NewUserForm(request.POST)

if form.is_valid():

user = form.save()

messages.success(request, "Registration successful." )

return redirect("home")

messages.error(request, "Unsuccessful registration. Invalid information.")

form = NewUserForm()

return render (request, 'register.html', context={"register_form":form})

def logout_request(request):

logout(request)

messages.info(request, "You have successfully logged out.")

return redirect("homepage")

Step 5:- Create templates folder and write code for homepage.html :-

<a class="navbar-brand" href="#">Navbar</a>

</button>

{% if user.is_authenticated %}

<a class="nav-link" href="{% url 'logout' %}">Logout</a>

</li>

<a class="nav-link" href="#">Welcome, {{user.username}}</a>

</li>

{% else %}

<a class="nav-link" href="{% url 'login' %}">Login</a>

</li>

{% endif %}

</ul>

</div>

</nav>

Register.html file code:-

<h1>Register</h1>

{% csrf_token %}

<button class="btn btn-primary" type="submit">Register</button>

</form>

<p class="text-center">If you already have an account, <a href="{% url 'login' %}">login</a> instead.</p>

</div>

Login.html file code:-

<h1>Login</h1>

{% csrf_token %}

<button class="btn btn-primary" type="submit">Login</button>

</form>

<p class="text-center">Don't have an account? <a href="{% url 'register' %}">Create an account</a>.</p>

</div>

home.html file code:-

<h1 class="myclass">hello world how are you

</h1>

Now to run it use following command

py manage.py runserver in your command prompt as shown below

http://127.0.0.1:8000/hello/register

and you will see output

http://127.0.0.1:8000/hello/login