Pass in node id of input node to be able to get additional information

[alastair]

I want to run an algorithm that acts on a node in the CE, but doesn't represent a file that can be downloaded (it has no source field set). I need to be able to perform a query to the CE to get the necessary information about the node.

I need to be able to add an [Input1] config section to the TPL and get passed the ID of the selected node, rather than a url or file.

[alastair]

We decided to add some additional properties in this case to indicate

• If we want to download a field and pass in the file, or pass in the value of a field as an argument
• if downloading, which field to download (source, contentUrl, etc)

We should store this data in the CE, using Property.additionalProperty, for example:

mutation {
  pvfield:CreatePropertyValue (
    identifier: "96b27fe7-5753-46c2-a77b-34be0f04b73f"
    name: "field"
    value: "identifier"
    valueReference: String
  ) {
    identifier
  }
  pvdownload:CreatePropertyValue (
    identifier: "a2df12e1-c618-4d8b-afe3-814585c1660e"
    name: "downloadfield"
    value: "false"
    valueReference: Boolean
  ) {
    identifier
  }
  mergefield:MergePropertyAdditionalProperty (
    from: {identifier: "property-id"}
    to: {identifier:"96b27fe7-5753-46c2-a77b-34be0f04b73f"}
  ) {
    from {identifier}
    to {identifier}
  }
  mergedownload:MergePropertyAdditionalProperty (
    from: {identifier: "property-id"}
    to: {identifier:"a2df12e1-c618-4d8b-afe3-814585c1660e"}
  ) {
    from {identifier}
    to {identifier}
  }
}