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set-variable-node.md

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Set Variable Node

This node is used to create a GLOBAL variable and assign it a value.

The value assigned can be of type -

  • Select - Selects a part of the output from the previous node. For instance previous node is request node that outputs { "id": 10, "category" : [ {"id" : 10, "status" : "available"} ], .....} , then you can use id or category.0.id to assign value to the variable. The actual values will be calculated on the fly when the graph is run.
  • String - Assigns a value of type string to the variable.
  • Number - Assigns a value of type number to the variable.
  • Boolean - Assigns a value of type boolean to the variable.
  • Now - Assigns a value of type now() epoch timestamp to the variable. The value of now() is calculated on the fly during graph run.
  • Expression - You can compute an expression on the fly to assign value to this variable. For instance , create a variable startTime that is assigned now() - 3minutes