Hi Robert,

here is how my code looks like but when I comes to line code :  Set WebSoc=##class(%Net.WebSocket.Client).%New(WebSocURL,cre,evl)

it just hangs and doesn't go any further!?

ClassMethod GetAdvData() As %String
{
    S Token=##class(SX3.Task.TemperatureCollection).GetAuth()
        S BleMac="DC:0D:30:00:07:25",GatewayMac="CC:1B:E0:E2:52:D4"  // this for testing
set cre=##class(SX3.Production.HTTP.AdvCredenials).%New()
set evl=##class(SX3.Production.HTTP.AdvListener).%New()
Set WebSocURL="https://ac1.mqtt.sx3ac.com/api/gap/nodes?filter_mac="_BleMac_"&filter_rssi=-75&mac="_GatewayMac_"&active=1&event=1&chip=1&access_token="_Token
Set WebSoc=##class(%Net.WebSocket.Client).%New(WebSocURL,cre,evl)

S res=WebSoc.Next(30,1)

Quit WebSoc_"|"_WebSocURL
}

Class SX3.Production.HTTP.AdvCredenials Extends (%RegisteredObject, %Net.WebSocket.ICredentials)
{
Method GetUsername() As %String
{
quit "SuperUser"
}
/// Returns the password to use for authentication with the web socket
/// @API.Overrideable
Method GetPassword() As %String
{
quit "SYS"
}
Method GetSSLConfiguration() As %String
{
q "RTLS"
} }
 

Class SX3.Production.HTTP.AdvListener Extends (%RegisteredObject, %Net.WebSocket.IEventListener)
{ Method OnMessage(pContent As %Stream.Object)
{
S ^data("message")="1" //pContent.Read()

} 
}

Also changed the listener class to include you code and still the same, hangs

Class SX3.Production.HTTP.AdvListener Extends (%RegisteredObject, %Net.WebSocket.IEventListener)
{ Method OnOpen()
{
if $increment(%ct("O")) set io=$io use 0 write "OPEN",! break:$get(%b) use io
} /// Called when an error occurs in the web socket connection.<br />
/// @API.Overrideable
Method OnError(pError As %Exception.AbstractException)
{
if $increment(%ct("E")) set io=$io use 0 write !
do $system.OBJ.DisplayError()
if pError.Code=28000 kill ws   use io quit     ;connection lost
zwrite pError write ! break:$get(%b) use io
} /// Called when the web socket connection is closed by either the client (%OnClose) or the server (by sending a close frame).<br />
/// @API.Overrideable
Method OnClose()
{
 if $increment(%ct("C")) set io=$io use 0 write "CLOSE",! BREAK:$get(%b) use io
} /// Called when the client receives a message from the server. <br />
/// <var>pContent</var> may be a binary or UTF8-decoded character stream. <br />
/// @API.Overrideable
Method OnMessage(pContent As %Stream.Object)
{
if $increment(%ct("M")) set io=$io use 0 write "MESSAGE:",pContent,!
if $isobject(pContent) write pContent.Read(),!
if $get(%b) zwrite pContent BREAK  
use io
} }
 

any clues?

Thanks

Thanks but it looks like you are not using Credential class (CRE.cls)? 
I think in my case it should be simpler, only need to create an instance of the WebsocketClient, set the URL and implement Credentials & the EventLister, and I can where you used EventLister but don't know where to use the Credentials  class?

But I also noticed that in your Try method you're actually sending message, in my case I'm looking to get messages, but if you can let me know where to use Credentials, that would be a good start for me to try and get data?  
Thanks  

I actually I've seen that one before posting the question, but couldn't find the actual code, do I have to run those docker commands, I'm not familiar with dockers and I don't want to mess up our Live Linux system, so not looking to try or test it if only can check a copy of the code that would be great?

Thanks Robert