backend/image_markuper/users/api/serializers.py

from django.contrib.auth import get_user_model
from rest_framework import serializers

User = get_user_model()


class UserSerializer(serializers.ModelSerializer):
    class Meta:
        model = User
        fields = ["username", "url"]

        extra_kwargs = {
            "url": {"view_name": "api:user-detail", "lookup_field": "username"}
        }


class RegisterSerializer(serializers.ModelSerializer):
    class Meta:
        model = User
        fields = (
            "username",
            "password",
        )
        extra_kwargs = {"password": {"write_only": True}}

    def create(self, validated_data):
        user = User.objects.create(
            username=validated_data["username"],
        )

        user.set_password(validated_data["password"])
        user.save()

        return user