For each - Momor Workflows docs

LoopFor each

Step kind: ForEach
Items: Trigger.Invoices
Each: Invoice
Operation: PurchaseOrders

For each is written as ForEach in YAML. The first example below declares this step.

Inputs

ItemsexpressionRequired: The list to run over, read from the run’s values, such as { Field: Trigger.Invoices }. A value that is not a list fails the attempt.
Eachstring: The name each item is read under inside Input or the body. Required with Steps, and with an Input that reads the item.
Operationstring: A declared tool or workflow run once per item. Give Operation or Steps, not both.
Inputmapping: What each item’s operation is called with. Where absent, the item itself is the whole input.
Stepsstep[]: A body run once per item, starting from the item.
Outputoutput contract: What each item’s value is narrowed to.
AttemptsintegerDefault 1: How many attempts the step may take. A retry runs only the items that failed.
OnExhaustedpolicy: What happens when the attempts run out.

Outputs

<index>any: Each item’s value under its position in the list: the operation’s result, or the last value its body produced. An empty list completes at once with an empty result.

One operation per item

- ForEach: Orders
  Items: { Field: Trigger.Invoices }
  Each: Invoice
  Operation: PurchaseOrders
  Input:
    number: { Field: Invoice.PurchaseOrder }

A body of steps per item

- ForEach: Review
  Items: { Field: Trigger.Documents }
  Each: Doc
  Steps:
    - ExecuteTool: Read
      Operations: [FetchDocument]
      Input:
        path: { Field: Doc.Path }
    - DeliverResults: HandOver
    - ModelCall: Judge
      Instructions: Judge the document against the review checklist.
      Output:
        Structured:
          type: object
          properties:
            Verdict: { type: string }

Every item must succeedOne failed item does not stop the others; they all run to an end. The step completes only when every item has succeeded, and a retry reruns only the failed items. Inside a body, Exit ends that item’s pass and the other items carry on.

Inputs

Outputs

One operation per item

A body of steps per item

Related steps