Django function based viewAPI how to get request data and how to validate request input data

How to get request data

https://stackoverflow.com/questions/45693672/authtokenserializer-invalid-data-expected-a-dictionary-but-got-request-djang

serializer = self.serializer_class(data=request.data)

How to use serializer for function based views 

 https://blog.kdpisda.in/how-to-validate-the-raw-json-post-request-body-in-django-3c72e4513658

serializers.py

from rest_framework import serializers
	class NestedSerializer(serializers.Serializer):
	nested = serializers.BooleanField(required=True)
	value = serializers.CharField(required=True)
	class DataSerializer(serializers.Serializer):
	string_field = serializers.CharField(required=True)
	number_field = serializers.IntegerField(required=True)
	float_field = serializers.FloatField(required=True)
	dict_field = NestedSerializer(required=True)
	url_field = serializers.URLField(required=True)
	email_field = serializers.EmailField(required=True)
	date_field = serializers.DateField(required=True)
	time_field = serializers.TimeField(required=True)
	list_field = serializers.ListField(required=True)

validators.py

from demo import serializers
	def validate_api(request):
	res = {}
	res["success"] = True
	res["errors"] = None
	res["details"] = None
	validation = serializers.DataSerializer(data=request)
	if validation.is_valid():
	res["success"] = True
	else:
	res["success"] = False
	res["details"] = "Bad Request Body"
	res["errors"] = validation.errors
	return res

views.py

from django.shortcuts import render
	from rest_framework import status
	from django.http import JsonResponse
	from . import validators
	from django.views.decorators.csrf import csrf_exempt
	from django.views.decorators.http import require_http_methods
	import json
	# Create your views here.
	@csrf_exempt
	@require_http_methods(["POST"])
	def simple_api(request):
	res = {}
	status_code = status.HTTP_200_OK
	try:
	req = json.loads(request.body.decode("utf-8"))
	except Exception as e:
	res["details"] = "Invalid request body"
	validation = validators.validate_api(req.data)
	if not validation["success"]:
	res["errors"] = validation["errors"]
	status_code = status.HTTP_400_BAD_REQUEST
	else:
	res["details"] = "Validation passed"
	return JsonResponse(res, status=status_code)