How-to: Validate Required Property (Rego)

inputs:
  aoi:
    type: https://raw.githubusercontent.com/eoap/schemas/main/geojson.yaml#Polygon

hints:
  - class: eoap:RegoPolicyHint
    module: |
      package workflow

      deny[msg] {
        input["aoi"]["properties"]["name"] == null
        msg := "aoi.properties.name must be provided"
      }
    queries:
      - data.workflow.deny[_]

assertions-mate workflow.cwl --inputs inputs-valid.yaml