nchan_eventsource_event Event source Event type

[t3ndai]

Seems I'm not able to set the event type on my sse events, when I publish a new event. post request to publish httpx.post( f"http://localhost:8001/pub?chanid={chanid}&type={event_type}", data={"message": "new_comment", "event": "new_comment"}, )

nginx configuration

    server {	
        listen 8001;
        server_name outtaofficed;

        location / {
            # First attempt to serve request as file, then
            # as directory, then fall back to displaying a 404.
            # try_files $uri $uri/ =404;
            proxy_pass http://127.0.0.1:8000;
        }

        location =  /events {
            nchan_subscriber;
            nchan_channel_id $arg_chanid;
            add_header 'Access-Control-Allow-Credentials' 'include';
        }

        location = /pub {
            nchan_publisher;
            nchan_channel_id $arg_chanid;
            nchan_eventsource_event $arg_type;
        }

    }

what i'm getting in the browser

1598574438:0 | $arg_type ```

[fschaule]

Hi,

I run into the same problem. I solved it by setting the header to X-EventSource-Event:fooevent for the publisher, which somehow works. I didn't get it working with $arg variable or other variables from nginx.

I'm not sure if this is a bug, or we both configure it wrong.

[dtcooper]

Bump, CC: @slact. Seems the problem here is that the nchan_eventsource_event directive doesn't expand variables. For example,

nchan_eventsource_event "$nchan_channel_id";

Returns the message,

event: $nchan_channel_id
id: 1615759869:0
data: {hi: 'mom'}

Instead of the expanding the nginx variable.

[dtcooper]

Not a C or nginx expert, but I'm thinking the value needs to be evaluated for variables, perhaps something along the lines of treating the string for nchan_eventsource_event as an "nginx complex value"?