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WebSocket Client IRIS internal

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This application is not supported by InterSystems Corporation. Please be notified that you use it at your own responsibility.
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IRIS 2010.1 brought us a new feature: %Net.WebSocket.Client

As a continuation of my series of WS Clients I just couldn't resist to try it.
Well, this is the result and it was rather simple in the end.

  • After I succeeded in my personal fight against Windows Firewall ;-)

You basically need to prepare 3 classes:

  • Credentials for User, PW, SSL
  • an Event Listener
  • the Client (Could be a .MAC routine as well)

The example uses the WSS.EchoServer (a derivate from former SAMPLES in Caché).
The default assumption is to have Client and Server on the same system & namespace.
But if you have some other echo server (e.g. ws://echo.websocket.org)
you just pass the URL as param.

You start it
by DO ##CLASS(WSCI.Client).Try()
or DO ##CLASS(WSCI.Client).Try(server_url)

USER>DO ##CLASS(WSCI.Client).Try()   
OPEN  
MESSAGE:10@%Stream.TmpCharacter   
Welcome to Cache WebSocket. NameSpace: USER   
--------------- next ---------------  
new message (*=exit):MESSAGE:8@%Stream.TmpCharacter  
2020-04-04 18:33:53.319: received 'hallo WS demo server' (length=20)  
--------------- next ---------------  
new message (*=exit):MESSAGE:10@%Stream.TmpCharacter  
2020-04-04 18:34:03.320: Timeout after 10 seconds  
--------------- next ---------------  
new message (*=exit):this is my demo  
--------------- next ---------------  
new message (*=exit):MESSAGE:5@%Stream.TmpCharacter  
2020-04-04 18:34:09.851: received 'this is my demo' (length=15)  
--------------- next ---------------  
--------------- next ---------------  
new message (*=exit):MESSAGE:10@%Stream.TmpCharacter  
2020-04-04 18:34:19.866: Timeout after 10 seconds  
--------------- next ---------------  
new message (*=exit):longer timeout  
MESSAGE:8@%Stream.TmpCharacter  
2020-04-04 18:34:29.132: received 'lange' (length=5)  
--------------- next ---------------  
new message (*=exit):MESSAGE:11@%Stream.TmpCharacter  
2020-04-04 18:34:39.132: Timeout after 10 seconds  
--------------- next ---------------  
new message (*=exit):MESSAGE:8@%Stream.TmpCharacter  
2020-04-04 18:34:41.132: received 'longer timeout' (length=14)  
--------------- next ---------------  
new message (*=exit):MESSAGE:11@%Stream.TmpCharacter  
2020-04-04 18:34:51.148: Timeout after 10 seconds  
--------------- next ---------------  
new message (*=exit):to=17  
--------------- next ---------------  
new message (*=exit):MESSAGE:5@%Stream.TmpCharacter  
2020-04-04 18:34:55.866: received 'to=17' (length=5)  
--------------- next ---------------  
--------------- next ---------------  
new message (*=exit):MESSAGE:11@%Stream.TmpCharacter  
2020-04-04 18:35:12.882: Timeout after 17 seconds  
--------------- next ---------------  
--------------- next ---------------  
new message (*=exit):*  
--------------- next ---------------  

ERROR #28000: Connection closed
USER>

ZPM installation
zpm "install websocket-client-iris-internal"
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Version
1.0.4
Last updated
2021-03-21
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