login system with rest framework simple jwt code example

Example 1: create jwt token in django

@api_view(['POST'])
@permission_classes([AllowAny, ])
def authenticate_user(request):
 
    try:
        email = request.data['email']
        password = request.data['password']
 
        user = User.objects.get(email=email, password=password)
        if user:
            try:
                payload = jwt_payload_handler(user)
                token = jwt.encode(payload, settings.SECRET_KEY)
                user_details = {}
                user_details['name'] = "%s %s" % (
                    user.first_name, user.last_name)
                user_details['token'] = token
                user_logged_in.send(sender=user.__class__,
                                    request=request, user=user)
                return Response(user_details, status=status.HTTP_200_OK)
 
            except Exception as e:
                raise e
        else:
            res = {
                'error': 'can not authenticate with the given credentials or the account has been deactivated'}
            return Response(res, status=status.HTTP_403_FORBIDDEN)
    except KeyError:
        res = {'error': 'please provide a email and a password'}
        return Response(res)

Example 2: register login serializer django

from rest_framework import serializers
from rest_framework.validators import UniqueValidator
from django.contrib.auth.models import User

class UserSerializer(serializers.ModelSerializer):
    email = serializers.EmailField(
            required=True,
            validators=[UniqueValidator(queryset=User.objects.all())]
            )
    username = serializers.CharField(
            validators=[UniqueValidator(queryset=User.objects.all())]
            )
    password = serializers.CharField(min_length=8)

    def create(self, validated_data):
        user = User.objects.create_user(validated_data['username'], validated_data['email'],
             validated_data['password'])
        return user

    class Meta:
        model = User
        fields = ('id', 'username', 'email', 'password')