django token authentication not working properly

Question

Hi Everyone i have configure token authentication in my project, when i post username and password on postman token are generating but when i added this token to access my api respose then getting [Authentication credentials were not provided.]

models.py

from rest_framework.authtoken.models import Token

@receiver(post_save, sender=settings.AUTH_USER_MODEL)
def create_auth_token(sender, instance=None, created=False, **kwargs):
    if created:
        Token.objects.create(user=instance)

settings.py

INSTALLED_APPS = [
'rest_framework.authtoken',
]

REST_FRAMEWORK = {
    'DEFAULT_AUTHENTICATION_CLASSES': (
        'api.authentication.TokenAuthentication',
        'rest_framework.authentication.SessionAuthentication',
        'rest_framework.authentication.TokenAuthentication'
    ),
    'DEFAULT_RENDERER_CLASSES': (
        'rest_framework.renderers.JSONRenderer',
        'rest_framework.renderers.BrowsableAPIRenderer',
        'rest_framework_datatables.renderers.DatatablesRenderer',
    ),
    'DEFAULT_FILTER_BACKENDS': (
        'rest_framework_datatables.filters.DatatablesFilterBackend',
    ),
    'DEFAULT_PAGINATION_CLASS': 'rest_framework_datatables.pagination.DatatablesPageNumberPagination',
    'PAGE_SIZE': 100,
}

urls.py

from rest_framework.authtoken.views import obtain_auth_token

router = routers.DefaultRouter()
router.register(r'api/hisaabApi',views.HisaabViewSet)
urlpatterns = [
    path('login',obtain_auth_token,name="login")
]

#api for response

views.py

class HisaabViewSet(viewsets.ModelViewSet):
    permission_classes = (IsAuthenticated,)
    queryset=WeeklyData.objects.all()
    serializer_class=HisaabSerializer

serializers.py

class HisaabSerializer(serializers.ModelSerializer):
    class Meta:
        model = WeeklyData
        fields = '__all__'