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SocketIO DAT

Summary

The SocketIO DAT connects to a Socket.IO server at the specified URL.

Additional headers can be specified via the first input of the SocketIO DAT. This input should be in a table format with two columns, structured as name/value pairs.

The SocketIO DAT listens to specific events that the server emits. These events are added as listeners via the second input, structured as a single column of event names. Then, when the server emits these events the onReceiveEvent callback will be triggered.

The SocketIO DAT can also emit events to the server. This is done using the python emit method.

The SocketIO DAT is built with socket.io's C++ Client API v1.6.1.

See also: WebSocket DAT, Web Client DAT

PythonIcon.pngsocketioDAT_Class


Parameters - Connect Page

Active active - When enabled, the SocketIO DAT is actively listening for events from the server, and can also emit events.  

Reset reset -  

URL url - The URL of the socket.io server.  

Verify Certificate (TLS) verifycert - Enables TLS (transport layer security) certificate verification.  

Reconnect Delay delay - The delay in milliseconds between reconnection attempts.  


Parameters - Received Messages Page

Callbacks DAT callbacks - The Callbacks DAT will execute once for each message coming in.  

Execute from executeloc - - Determines the location the script is run from.

  • Current Node current - The script is executed from the current node location.
  • Callbacks DAT callbacks - The script is executed from the location of the DAT specified in the Callbacks DAT parameter.
  • Specified Operator op - The script is executed from the operator specified in the From Operator parameter below.

From Operator fromop - The operator whose state change will trigger the DAT to execute its script when Execute from is set to Specified Operator. This operator is also the path that the script will be executed from if the Execute from parameter is set to Specified Operator.  

Clamp Output clamp - The DAT is limited to 100 messages by default but with Clamp Output, this can be set to anything including unlimited.  

Maximum Lines maxlines - Limits the number of messages, older messages are removed from the list first.  

Clear Output clear - Deletes all lines except the heading. To clear with a python script op("opname").par.clear.pulse()  

Bytes Column bytes - Outputs the raw bytes of the message in a separate column.  


Parameters - Common Page

Language language - - Select how the DAT decides which script language to operate on.

  • Input input - The DAT uses the inputs script language.
  • Node node - The DAT uses it's own script language.

Edit/View Extension extension - - Select the file extension this DAT should expose to external editors.

  • dat dat - various common file extensions.
  • From Language language - pick extension from DATs script language.
  • Custom Extension custom - Specify a custom extension.

Custom Extension customext - Specifiy the custom extension.  

Word Wrap wordwrap - - Enable Word Wrap for Node Display.

  • Input input - The DAT uses the inputs setting.
  • On on - Turn on Word Wrap.
  • Off off - Turn off Word Wrap.

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