Password Validation Not Work In Django-rest-framework

when I register new user at that time password validator not work.(e.g. When I enter admin123 and password is also admin123 at that time password validator not saw like this error:

Solution 1:

The second argument of validate_password is User object, not username string.

You can see that in docs here: https://docs.djangoproject.com/en/3.1/topics/auth/passwords/#django.contrib.auth.password_validation.validate_password

Try this in your views.py:

from rest_framework import status
from django.contrib.auth import get_user_model
from .serializers import SignUpSerializer
from rest_framework.decorators import api_view, permission_classes
from rest_framework.response import Response
from rest_framework.permissions import AllowAny
from django.contrib.auth.password_validation import validate_password
from django.core.exceptions import ValidationError

User = get_user_model()

@api_view(['POST'])@permission_classes([AllowAny,])defsignup(request):
    serializer = SignUpSerializer(data=request.data)
    
    if serializer.is_valid():
        username = serializer.data['username']
        user = User(
            username = username,
            email = serializer.data['email']
        )
        
        try:
            validate_password(serializer.data['password'], user)
        except ValidationError as e:
            return Response(str(e), status=status.HTTP_400_BAD_REQUEST)
        
        user.set_password(serializer.data['password'])
        user.save()
        return Response(serializer.data, status=status.HTTP_201_CREATED)
    else:
        return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)