A simple example of Phoenix running web sockets.
Examples based on Real-Time Phoenix - Build Highly Scalable Systems with Channels.
make phx.setup
make wscat.install
iex -S mix phx.server
NOTE: Exclude all comments, including trailing comments.
The Phoenix.Message is structured:
[join ref, message ref, topic, event, payload]
["1","1","ping","phx_join",{}]
# try pinging
$ wscat -c 'ws:https://localhost:4000/socket/websocket?vsn=2.0.0'
> ["1","1","ping","phx_join",{}]
> ["1","2","ping","ping",{}]
# try wildcard
$ wscat -c 'ws:https://localhost:4000/socket/websocket?vsn=2.0.0'
> ["1","1","wild:1:2","phx_join",{}] # ok
> ["1","2","wild:1:3","phx_join",{}] # error
# try broadcast
$ wscat -c 'ws:https://localhost:4000/socket/websocket?vsn=2.0.0'
> ["1","1","ping","phx_join",{}]
# must be the same instance phx server instance
PolishedWaveWeb.Endpoint.broadcast("ping", "test", %{data: "test"})
# open the browser and view the console
open http:https://localhost:4000