Subflow

Use acts.core.subflow to invoke another workflow model (sub-workflow).

name: test
steps:
    - id: step1
      uses: acts.core.subflow
      params:
        # The target sub-workflow model ID
        to: sub_workflow_id
        # Input data passed to the sub-workflow
        a: '${{ value }}'

Sub-Workflow Definition

A sub-workflow is an independent workflow model:

id: sub_workflow_id
name: sub_flow
inputs:
  type: object
  properties:
    a:
      type: integer
outputs:
  type: object
  properties:
    result:
      type: string
steps:
    - id: sub_step1
      uses: acts.core.irq
      params:
        key: sub_act

    - id: sub_step2
      uses: acts.core.msg
      params:
        key: sub_done

Data Passing

Sub-workflow inputs are passed via params, and sub-workflow outputs are exported back to the parent workflow via options.exposes:

steps:
    - id: step1
      uses: acts.core.subflow
      params:
        to: sub_workflow_id
        input_value: '${{ parent_var }}'
      options:
        exposes:
          - name: result