from django.db import models
class Student(models.Model):
 name = models.CharField(max_length=111)
 roll = models.IntegerField()
 city = models.CharField(max_length=111)

from django.shortcuts import render
# Create your views here.
import io
from rest_framework.parsers import JSONParser
from . serializers import StudentSerializer
from rest_framework.renderers import JSONRenderer
from django.http import HttpResponse
from django.views.decorators.csrf import csrf_exempt
@csrf_exempt
def student_create(request):
 if request.method =="POST":
 json_data = request.body
 stream = io.BytesIO(json_data)
 pythondata = JSONParser().parse(stream)
 serializer = StudentSerializer(data=pythondata)
 if serializer.is_valid():
 serializer.save()
 res = {'msg':'data created'}
 json_data = JSONRenderer().render(res)
 return HttpResponse(json_data, content_type='application/json')
 json_data = JSONRenderer().render(serializer.errors)
 return HttpResponse(json_data, content_type='application/json')

serializers.py
from rest_framework import serializers
from .models import Student
class StudentSerializer(serializers.Serializer):
 name = serializers.CharField(max_length=111)
 roll = serializers.IntegerField()
 city = serializers.CharField(max_length=722)
 
def create(self,validated_data):
 return Student.objects.create(**validated_data)

urls.py
from django.contrib import admin
from django.urls import path
from apiApp import views
urlpatterns = [
 path('admin/', admin.site.urls),
 path('stucreate/', views.student_create),
]

API
import requests
import json 
URL = "http://127.0.0.1:8000/stucreate/"
data = {
 'name':'sonam',
 'roll':101,
 'city':"Ranchi",
}
json_data = json.dumps(data)
r = requests.post(url = URL, data = json_data)
data = r.json()
print(data)