request.user.is_authenticated always returns false

Question

after logging in the user and checking whether request.user isauthenticated in other activity in android. the value is always false.

the following code is used for login a user

from rest_framework.response import Response
from rest_framework import status
from rest_framework.decorators import api_view
from django.contrib.auth.models import User
from django.contrib.auth import authenticate,logout,login


@api_view(['POST'])
def userRegister(request):
    user=User.objects.create_user(username=request.POST['username'],email=request.POST['email'],password=request.POST['password'])
    return Response({'ok':'True'},status=status.HTTP_201_CREATED)

@api_view(['POST'])
def userLogin(request):
    user=authenticate(
        username=request.POST['username'],
        password=request.POST['password']
    )
    if user is not None:
        login(request,user)
        return Response({'ok':'True'},status=status.HTTP_200_OK)
    else:
        return Response({'ok':'False'},status=status.HTTP_401_UNAUTHORIZED)

the following code is used to check whether the user is authenticated or not

from rest_framework.response import Response
from rest_framework.decorators import api_view
from . import models
from . import serializers
from django.contrib.auth.models import User
from rest_framework import status


@api_view(['GET'])
def HomeView(request):
    if request.user.is_authenticated:
        return Response(data={"ok":'true'})
    else:
        return Response(data={"ok":"false"})