Cannot call function on Symfony2 websocket connection - symfony

Question

First off im using the JDare/ClankBundle
I'm following these instruction to call a function from the client side
https://github.com/JDare/ClankBundle/blob/master/Resources/docs/RPCSetup.md
I keep gettting this error on the console "RPC Error [object Object] undefined"
I noticed that it doesn't matter if I mispell the notify_func function, it still throws the same error.
I don't know what im doing wrong, but I assume the function isn't found to begin with?
This is the client side (Twig)
The websocket connects succesfully
<script type="text/javascript">
var myClank = Clank.connect('ws://localhost:9999');
myClank.on("socket/connect", function(session){
alertify.success("Connected to websocket server");
//this will call the server side function "Sample::addFunc"
session.call("notify/notify_func",[2,5])
.then( //using "then" promises.
function(result) //the function for a valid result
{
alertify.log("RPC Valid! "+result);
},
function(error, desc) // the function to handle an error
{
alertify.log("RPC Error"+" "+error+" "+desc);
}
);
});
myClank.on("socket/disconnect", function(error){
alertify.error("Disconnect for "+error.reason+" with code "+error.code);
});
</script>
This is the server side
<?php
namespace Gabriel\NotificationsBundle\RPC;
use Ratchet\ConnectionInterface as Conn;
class PostCommentNotificationService
{
public function notifyFunc(Conn $conn,$params)
{
return array("result"=>array_sum($params));
}
}
This is the config
#services.yml
services:
notifications.newcommentpost:
class: Gabriel\NotificationsBundle\RPC\PostCommentNotificationService
#config.yml
# Clank Configuration
clank:
web_socket_server:
port: 9999 #The port the socket server will listen on
host: localhost #(optional) The host ip to bind to
rpc:
-
name: "notify" #Important! this is the network namespace used to match calls to this service!
service: "notifications.newcommentpost" #The service id.

Answer 1

I had a very similar problem.
I found out that stopping and restarting the built-in websocket server solved the problem. Every modification done on the websocket code requires the websocket server to be restarted in order for these changes to take place...
php app/console clank:server