request.user.is_authenticated always returns false

问题

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"})

回答1:

In your view (if you are using a version of Django < 1.10, as @Kevin Christopher Henry points out in the comments below) you need to do:

if request.user.is_authenticated():

If you do .is_authenticated (without the parentheses) it will return the method itself instead of a boolean (True or False), and will always evaluate to True, or at least it should. I am not sure why it would return False in your case, but I think this should solve your problem.

Also, note that in Django templates the situation is different. In a template you can (and must) do:

{% if user.is_authenticated %}

Note the lack of parentheses after is_authenticated. If you include parentheses in the template case, you will get an error, while if you don't include them in the view case you will get unexpected results.

来源：https://stackoverflow.com/questions/39318335/request-user-is-authenticated-always-returns-false

标签

django

django-authentication