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Shivam Rohilla
Shivam Rohilla

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User Authentication in DjangoRestFramework using SimpleJWT [Login, Signup]

#django #python

Hello Devs, In this blog you will learn how to create User Authentication, login and signup API's in djangorestframework using SimpleJWT.

Source Code:- https://github.com/ShivamRohilllaa/DjangoRestFramework-UserAuthentication/ Post Link:- https://pythondjangogeek.com/django/streamlined-user-authentication-with-django-and-si/
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I hope you guys knows how to create a django project so I am skipping those steps and let's jump on code directly.

Create virtual enviornment,

python3 -m venv envname
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Install these packages:-

django djangorestframework djangorestframework-simplejwt
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Add restframework in your installed apps in settings.py file:

INSTALLED_APPS = [ 'rest_framework', ]
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and add these settings for rest_framework and simpleJWT.

REST_FRAMEWORK = { 'DEFAULT_AUTHENTICATION_CLASSES': ( 'rest_framework_simplejwt.authentication.JWTAuthentication', ) } SIMPLE_JWT = { 'ACCESS_TOKEN_LIFETIME': timedelta(days=15), 'AUTH_HEADER_TYPES': ('Bearer',), 'AUTH_TOKEN_CLASSES': ('rest_framework_simplejwt.tokens.AccessToken',), }
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Create Model for a student 

class Student(models.Model): auth = models.OneToOneField(User, on_delete=models.CASCADE, related_name='student_profile') name = models.CharField(max_length=100) email = models.EmailField(max_length=100) def __str__(self): return self.name
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and now we will create user signup and user profile serializers for signup and login

from rest_framework import serializers from userapp.models import Student from django.contrib.auth.models import User class UserSignupSerializer(serializers.ModelSerializer): class Meta: model = User fields = ('first_name', 'last_name', 'email', 'password') extra_kwargs = { 'first_name': {'required': True, 'allow_blank': False}, 'last_name': {'required': True, 'allow_blank': False}, 'email': {'required': True, 'allow_blank': False}, 'password': {'required': True, 'allow_blank': False}, } class UserSerializer(serializers.ModelSerializer): class Meta: model = User fields = ('id', 'first_name', 'last_name', 'email', 'username')
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now write views for utilise the serializers

from django.shortcuts import render from .models import Student from .serializers import UserSignupSerializer, UserSerializer from rest_framework.decorators import api_view from rest_framework.response import Response from rest_framework import status from django.contrib.auth.hashers import make_password from django.contrib.auth.models import User @api_view(['POST']) def signup(request): data = request.data serializer = UserSignupSerializer(data=data) if serializer.is_valid(): if not User.objects.filter(username=data['email']).exists(): user = User.objects.create(first_name=data['first_name'], last_name=data['last_name'], username=data['email'], email=data['email'], password=make_password(data['password'])) user.save() student = Student.objects.create(auth=user, name=data['first_name'], email=data['email']) return Response({'message':'User Created Successfully'}, status=status.HTTP_201_CREATED) else: return Response({'message':'User Already Exists'}, status=status.HTTP_400_BAD_REQUEST) else: return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST) @api_view(['GET']) def login(request): data = request.data if User.objects.filter(username=data['email']).exists(): user = User.objects.get(username=data['email']) if user.check_password(data['password']): return Response(UserSerializer(instance=user).data, status=status.HTTP_200_OK) else: return Response({'message':'Invalid Password'}, status=status.HTTP_400_BAD_REQUEST) else: return Response({'message':'User Does Not Exist'}, status=status.HTTP_400_BAD_REQUEST)
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Now map these views in urls.py 

urlpatterns = [ path('signup/', views.signup, name='signup'), path('login/', views.login, name='login'),
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and for testing these endpoints use postman and pass these responses

for singup api 

{ "first_name": "demo", "last_name": "demo", "email": "demo@gmail.com", "password": "demo" }
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for login 

{ "email": "demo@gmail.com", "password": "demo" }
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Source Code 

Source Code:- https://github.com/ShivamRohilllaa/DjangoRestFramework-UserAuthentication/
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Thank You
Shivam Rohilla | Python Developer

DM me your queries:- https://www.linkedin.com/in/shivamrohillaa/
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