Invalid Username/Password when Trying to signup with DRF CreateAPIView - django

Question

I want to create users using django built-in "User" Model and with CreateAPIVIew mixin
here is the code :
class Register(generics.CreateAPIView):
permission_classes=[permissions.AllowAny]
def post(self,request,*args,**kwargs):
username= request.POST.get('username')
email=request.POST.get('email')
password=request.POST.get('password')
# first_name=request.POST.get('first_name')
# last_name=request.POST.get('last_name')
user=User.objects.create_user(username,email,password)
# user.first_name='mintu'
user.save()
but when I tried to submit a HTTP post request using Postman
I have been fired up with an error
called
{
"detail": "Invalid username/password."
}
so to make sure if I my database is creating users perfectly fine
I have decided to create a user manually through python shell with this command
user=User.objects.create_user('mounikesh','thota#gmail.com','test1234')
Successfully a user has been created
so I came to a conclusion that my database is fine and its accepting the request now the issue is only with drf's CreateAPIView
and now I tried to figure if the error is caused because of the data that I've been sending through postman
for that I've directly injected the username,email&password to the server
class Register(generics.CreateAPIView):
def post(self,request,*args,**kwargs):
permission_classes=[permissions.AllowAny]
#
# username= request.POST.get('username')
# email=request.POST.get('email')
# password=request.POST.get('password')
user=User.objects.create_user('ok','ok#gmail.com','test1234')
# user=User.objects.create_user(username,email,password)
user.save()
# token=Token.objects.create(user=user)
return Response("user has been created")
tried to send all my required credentials to create a User expecting my User created response instead got a Error Reponse
tried a lot of searching it in google and all other forums
But it's of no use
Any kind of help is appreciated