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


class UserSerializer(serializers.HyperlinkedModelSerializer):
    class Meta:
        model = User
        fields = ('url', 'username', 'email', 'groups')

class UserAdminSerializer(serializers.HyperlinkedModelSerializer):
    class Meta:
        model = User
        fields = '__all__'

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


class UserSerializer(serializers.HyperlinkedModelSerializer):
    class Meta:
        model = User
        fields = ('url', 'username', 'email', 'groups')

class UserAdminSerializer(serializers.HyperlinkedModelSerializer):
    class Meta:
        model = User
        fields = '__all__'
        extra_kwargs = {
            'url': {'view_name': 'users-detail-api'}
            }

Define lookup_field for url