#StandWithUkraine
Today, 25th June 2022, Ukraine is still bravely fighting for democratic values, human rights and peace in whole world. Russians ruthlessly kill all civilians in Ukraine including childs and destroy their cities.
We are uniting against Putinโs invasion and violence, in support of the people in Ukraine. You can help by donating to Ukrainian's army.
To create custom field in ModelSerializer we will use SerializerMethodField. After declaring token field of that type we need declare get_token method. It accepts User as input and then returns token generated by djangorestframework-jwt.
Also example shows password validation that can be fine-tuned in AUTH_PASSWORD_VALIDATORS setting, starting from Django 1.9
serializers.py:
import django.contrib.auth.password_validation as validators
from django.contrib.auth import get_user_model
from django.core import exceptions
from rest_framework import serializers
from rest_framework_jwt.settings import api_settings
UserModel = get_user_model()
class UserSerializer(serializers.ModelSerializer):
password = serializers.CharField(write_only=True)
token = serializers.SerializerMethodField()
def get_token(self, obj):
jwt_payload_handler = api_settings.JWT_PAYLOAD_HANDLER
jwt_encode_handler = api_settings.JWT_ENCODE_HANDLER
payload = jwt_payload_handler(obj)
token = jwt_encode_handler(payload)
return token
def validate(self, data):
password = data.get('password')
errors = dict()
try:
validators.validate_password(password=password)
# the exception raised here is different than serializers.ValidationError
except exceptions.ValidationError as e:
errors['password'] = list(e.messages)
if errors:
raise serializers.ValidationError(errors)
return super(UserSerializer, self).validate(data)
def create(self, validated_data):
user = UserModel.objects.create(
username=validated_data['username'],
email=validated_data['email']
)
user.set_password(validated_data['password'])
user.save()
return user
class Meta:
model = UserModel
fields = ('username', 'email', 'password', 'token')
views.py:
from django.contrib.auth import get_user_model
from rest_framework import permissions
from rest_framework.generics import CreateAPIView
from main.serializers import UserSerializer
class CreateUserView(CreateAPIView):
model = get_user_model()
permission_classes = [
permissions.AllowAny
]
serializer_class = UserSerializer
