Users not getting saved in database

[fossil sinew]

this the whole code for authentication I dont know why why the users i create does not get stored in the database when i create them using api urls, when I try using shell and use Users.objects.all(), it just shows empty json

serializers.py

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

class RegisterSerializer(serializers.Serializer):
    username=serializers.CharField()
    password=serializers.CharField()

    def validate(self,data):
        if data['username']:
            if User.objects.filter(username=data['username']).exists():
                raise serializers.ValidationError("Username already exists")
            
        return data
    
    def create(self, validated_data):
        user=User.objects.create_user(username=validated_data['username'],password=validated_data['password'])
        user.save()

        return user
    

class LoginSerializer(serializers.Serializer):
    username=serializers.CharField()
    password=serializers.CharField()

views.py

from django.contrib.auth.models import User
from rest_framework import generics, permissions
from rest_framework.views import APIView
from rest_framework.response import Response
from .serializers import RegisterSerializer, LoginSerializer
from django.contrib.auth import authenticate,get_user_model
from rest_framework.authtoken.models import Token

User=get_user_model()

class RegisterView(APIView):
    def post(self,request):
        data=request.data
        serializer=RegisterSerializer(data=data)

        if not serializer.is_valid():
            return Response(
                {
                    'status':'False',
                    'message':serializer.errors
                }
            )
        serializer.save()
        return Response({'message':'User account created'})
    

class LoginView(APIView):

    def post(self , request):
        data = request.data
        serializer = LoginSerializer(data=data)

        if not serializer.is_valid():
            return Response({
                'status':False,
                'message':serializer.errors
            }) 

        user = authenticate(username = serializer.data['username'] , password = serializer.data['password'])

        if not user:
            return Response({
                'status':False,
                'message': 'invalid credentials'
            })
        
        token, created = Token.objects.get_or_create(user=user)
        if created:
            token.save()

        return Response({'message':"user login" , 'token':str(token)})

from django.urls import path
from .views import RegisterView, LoginView

urlpatterns = [
    path('register/', RegisterView.as_view(), name='signup'),
    path('login/', LoginView.as_view(), name='login'),
]

[hardy pecan]

What response does the RegisterView generate?

[fossil sinew]

Wait I will send you the ss

10 mins

[fossil sinew]

request body

{
  "username":"monky1",
  "password":"plasmapool"
}

response

{
  "message": "User account created"
}

shell:-

In [1]: from django.contrib.auth.models import User

In [2]: User.objects.all()
Out[2]: <QuerySet []>

[hardy pecan]

Add a print statement to that view:

        instance = serializer.save() # save instance in a variable here
        print(instance)
        return Response({'message':'User account created'})

[fossil sinew]

Ok

[hardy pecan]

Does that print something, anything?

[desert dagger]

Do you have a custom manager for this User Model?

[fossil sinew]

I was busy somewhere,I will do that now

[fossil sinew]

It's a built in USER model

[desert dagger]

Okay

[fossil sinew]

hey thanks for your tip, I just came to know when I am running the server on localhost and if I create any user then its getting stored in database but when I am running the api in deployed server i.e on render then if I create any user then its not getting stored in database, any solution for this?

[hardy pecan]

Hmm, logging, logging, logging...

Though I am not familiar with render.

[fossil sinew]

i have used up my brain on thi for too long now, dant want it too fail 😦

[hardy pecan]

What DB do you use?

SQLite? Postgres?

[desert dagger]

# models.py
from django.contrib.auth.models import AbstractUser, BaseUserManager, PermissionsMixin


class CustomUserManager(BaseUserManager):

    def create_user(self, username, email=None, password=None, **extra_fields):
        instance = self.create(username=username)
        instance.set_password(password)
        instance.save(using=self._db)
        return instance


class CustomUser(AbstractUser,PermissionsMixin):

    def __str__(self):
        return f"{self.username}"

    objects = CustomUserManager()

# serializers.py 
from .models import CustomUser
from rest_framework import serializers
from rest_framework.exceptions import ValidationError


class UserSerializer(serializers.ModelSerializer):
    username = serializers.CharField(max_length=32)
    password = serializers.CharField(max_length=64)

    def validate(self, attrs):
        if not hasattr(attrs,'username') and hasattr(attrs,'password'):
            return ValidationError("Invalid data")

        return attrs

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

    class Meta:
        model = CustomUser
        fields = [
            'username',
            'password'
        ]

This method allows you to save your model objects using serializer. here's the ouput from console.

from users.serializers import UserSerializer

from users.models import CustomUser
data = {'username':'Kakashi Sensei', 'password':'kakashi@123'}
obj = UserSerializer(data=data)
obj.is_valid()
True
obj.save()
<CustomUser: Kakashi Sensei>
CustomUser.objects.all()
<QuerySet [<CustomUser: Kakashi Sensei>]>
obj.data
{'username': 'Kakashi Sensei', 'password': 'pbkdf2_sha256$600000$EF8ck4UgYVQ2dnwAuuFIdc$iro6W/PG6FWZpdylcI1ClPVF8AawPoWzyZvx+DzZG3w='}

[fossil sinew]

SQLite