How to add required field blank field in serializers?

Question

I need to add that field should be added compulsory in serializers how to do that?

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


class SignUpSerializer(serializers.Serializer):

    class Meta:
        model = User
        fields = ('first_name', 'last_name', 'email', 'password')

I'm expecting some kind of validators to validate those fields

Answer 1

You can use keyword args function to validate like

class SignUpSerializer(serializers.Serializer):

class Meta:
    model = User
    fields = ('first_name', 'last_name', 'email', 'password')

    extra_kwargs = {
        'first_name':{'required':True, 'allow_blank':False},
        'last_name':{'required':True, 'allow_blank':False},
        'email':{'required':True, 'allow_blank':False}
    }