ArrowFunctionAction

ArrowFunctionAction

Purpose
Define a reusable arrow function at runtime and store it on the API context (this.<contextPropertyName>). Other MScript snippets can call it to avoid repeating logic.

When to use it

• You need to reuse the same computation across multiple actions in the workflow.
• You want to keep map/filter/reduce code readable by defining helpers upfront.

Key fields

Example

{
  "id": "a310-tax-fn",
  "name": "setTaxCalculator",
  "contextPropertyName": "calcPriceWithVat",
  "parameterNames": ["price"],
  "functionBody": "{ const vat = 0.18; return price * (1 + vat); }"
}

Later actions can call this.calcPriceWithVat(100) inside their MScript expressions.