Polished Wave

A simple example of Phoenix running web sockets.

Examples based on Real-Time Phoenix - Build Highly Scalable Systems with Channels.

Setup

make phx.setup
make wscat.install

Start server

iex -S mix phx.server

Guide

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://localhost:4000/socket/websocket?vsn=2.0.0'
 > ["1","1","ping","phx_join",{}]
 > ["1","2","ping","ping",{}]

# try wildcard

$ wscat -c 'ws://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://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://localhost:4000