Set Variables

Overview

The Set Variables node allows you to set or update variables within your workflow dynamically. It reads a JSON dictionary of key-value pairs and adds them as variables to the current workflow context for use in subsequent nodes.

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Purpose

Use this node to define or override variables dynamically during workflow execution, enabling flexible data configuration and runtime adjustments.

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Inputs

Input	Type	Description
New Variables	JSON Dictionary	A JSON object containing key-value pairs representing the variables to set. Example: {"MyVar":"Value","AnotherVar":"123"}

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Outputs

Output Variable Name	Description
SetVariables	Contains a dictionary of all variables that were set by this node, with their resulting values.

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Execution Details

1. Validation:

   • No specific required inputs are validated beyond general task validation.
   • Checks that User Inputs are present and contain the New Variables key.

2. Variable Setting:

   • Reads the New Variables JSON input and converts it into a dictionary.
   • Iterates through each key-value pair and sets them as new user inputs (variables) in the workflow context.

3. Output Handling:

   • Creates an output dictionary SetVariables containing the newly set variables and their values.
   • Returns with taskSuccess = true upon completion.

4. Error Handling:

   • If New Variables input is missing or not a valid JSON object, the node fails with an error message.
   • Any unhandled exceptions will result in node failure with the exception message returned.

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Example Use Cases

• Defining variables dynamically based on logic earlier in the workflow.
• Overwriting existing variables to update downstream processing.
• Creating placeholder variables for use in script, API, or data operation nodes.

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Notes

⚠️ Important:

• The New Variables input must be a valid JSON object. Example:

  {
    "Username": "admin",
    "Timeout": "30",
    "IsEnabled": "true"
  }