How to send data to a particular user in django channels? - django

Question

This is my class:
class MyClass(models.Model):
name = models.CharField(max_length=128, unique=True)
members = models.ManyToManyField("Employee")
def save(self, *args, **kwargs):
super().save(*args,**kwargs)
channel_layer = get_channel_layer()
data = {"current_obj":self.name}
async_to_sync(channel_layer.group_send)(
"test_consumer_group_1",{
'type':'send_notification',
'value':json.dumps(data)
}
)
This is my consumer file.
class MySyncGroupConsumer(SyncConsumer):
def websocket_connect(self,event):
print("Web socket connected", event)
self.send({
'type':'websocket.accept'
})
print("Channel layer ",self.channel_layer)
print("Channel name", self.channel_name)
async_to_sync(self.channel_layer.group_add)("test_consumer_group_1", self.channel_name)
def websocket_receive(self,event):
print("Web socket recieved",event)
print(event["text"])
sync_to_sync(self.channel_layer.group_send)("test_consumer_group_1", {
'type':'chat.message',
'message':event['text']
})
#event handler, which is sending data to client
def chat_message(self,event):
print('Event...', event)
print('Event...', event["message"])
self.send({
"type":"websocket.send",
"text":event['message']
})
def send_notification(self, event):
print("send_notification called")
print('Event...', event['value'])
# Get the current user from the channel layer
user = self.scope['user']
print(user)
# Check if the user is authenticated and is a member of the team
if user.is_authenticated and user.employee in self.team.members.all():
self.send({
"type":"websocket.send",
"text":event['value']
})
def websocket_disconnect(self,event):
print("Web socket disconnect", event)
async_to_sync(self.channel_layer.group_discard)("test_consumer_group_1", self.channel_name)
raise StopConsumer()
This is my asgi.py file:
import os
import app.routing
from django.core.asgi import get_asgi_application
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "project.settings")
application = get_asgi_application()
application = ProtocolTypeRouter({
'http': get_asgi_application(),
"websocket": AuthMiddlewareStack(
URLRouter(
app.routing.websocket_urlpatterns
)
),
})
When an object of MyClass is created, send_notification is called.
Now I want to ask two things:
Inside send_notification, user = self.scope['user'] always returns anonymous user, even if user is authenticated.
I want to send notification to particular users onlyi.e. employees who are added in MyClass object and are logged in, instead of broadcasting the message
How to do that?