Variable (Base)

Description

The Variable module is the base node for managing persistent variables in the workflow. It allows storing, reading, updating and deleting variables that are saved in memory and can be accessed from any workflow of the same client. It supports multiple data types (varchar, int, float, boolean, json, array, date, datetime) with automatic conversion. Variables are identified by a unique key per workflow and client. Supports dynamic variables {{variable}} in both the key and value. This module is the base implementation used internally by the Set Variable, Get Variable and Delete Variable nodes.

Configuration

Parameter	Type	Required	Description
action	select	Yes	Action to perform: get (retrieve), add (create/update), update (update), delete (delete).
key	text	Yes	Variable name. Supports {{variable}}.
data	text	Depends	Value to store (for add/update) or filter (for get). Supports {{variable}}. If empty in add, the input data is used.
type	select	No	Data type: varchar, int, float, boolean, json, array, date, datetime. Default: varchar.
persistent	boolean	No	If active, the variable persists between executions. Default: true.

Output

Get

{
  "nextModule": "siguiente_modulo",
  "data": { "variable": "valor_almacenado" },
  "_meta_": { "key": "nombre_variable", "data": "filtro" }
}

Add

{
  "nextModule": "siguiente_modulo",
  "data": { "variable": { "resolvedValue": "valor_guardado" } }
}

Delete

{
  "nextModule": "siguiente_modulo",
  "data": { "variable": { "resolvedKey": "nombre_variable" } }
}

Usage Example

Basic case

{
  "label": "Variable (Base)",
  "action": "get",
  "key": "contador_pedidos",
  "data": "",
  "type": "int",
  "persistent": true
}

Notes

• Variables are accessible from all workflows of the same client.
• Supports dynamic variables {{variable}} in key and data.
• The data type is applied as conversion after getting or saving the value.
• If data is empty in the add action, the node’s input data is used as the value.
• The get action with empty data retrieves the variable without filter. With data, it applies an additional filter.
• This module is hidden in the interface (hidden: true). Users should use Set Variable, Get Variable or Delete Variable.
• The memory alias points to this same module for compatibility.

Related Nodes

• setVariable (wrapper for Variable with action=add)
• getVariable (wrapper for Variable with action=get)
• deleteVariable (wrapper for Variable with action=delete)
• memory (obsolete alias for Variable)