Hi there,

i have implemented django channels into my project to turn an intensive 
data importing task into a background task. This works fine.
I also implemented Websocket channels which work fine as well, however, i 
want to send a message to a specific websocket channel (of a user) from the 
background task about its progress when it is running.
This does not work and i am a bit confused if i understand correctly how it 
is supposed to work.

I can save websocket channel names or groups of specific users in the main 
app fine and send messages to individual users, however this does not work 
from the background task which is supposedly running in another thread.
Is this by design, eg. not possible or should it work that i can send 
messages back and forth between different channels even if they are in 
different threads? I am using the redis backend.

As per https://github.com/django/channels/issues/239 it looks like i have 
to persist channels name and then use them to send messages from an 
asynchronous background task to a websocket. So i tried to persist 
websocket connections of a user in the db and then access that field from 
the background task to send messages to that channel, but that also does 
not work.

Now i am unsure if it is because i am doing something wrong, if this is by 
design, or what exactly i should be doing anyway.

User Story:
Logged in user has an active Websocket connection and clicks on a button to 
start importing data, which triggers a background task through django 
channels. The background task should send Progress updates back to the user 
via his/her websocket channel

Thanks in advance

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