Mapping in the expressions editor

This page shows a few common examples you can use in the expressions editor to reference data.

Access the linked item in a previous node’s output

When you use this, Agentic WorkFlow works back up the item linking chain, to find the parent item in the given node.

// Returns the linked item
{{$("<node-name>").item}}

As a longer example, consider a scenario where a node earlier in the workflow has the following output data:

[
  {
    "id": "23423532",
    "name": "Jay Gatsby",
  },
  {
    "id": "23423533",
    "name": "José Arcadio Buendía",
  },
  {
    "id": "23423534",
    "name": "Max Sendak",
  },
  {
    "id": "23423535",
    "name": "Zaphod Beeblebrox",
  },
  {
    "id": "23423536",
    "name": "Edmund Pevensie",
  }
]

To extract the name, use the following expression:

{{$("<node-name>").item.json.name}}

Access the linked item in the current node’s input

In this case, the item linking is within the node: find the input item that the node links to an output item.

// Returns the linked item
{{$input.item}}

As a longer example, consider a scenario where the current node has the following input data:

[
  {
    "id": "23423532",
    "name": "Jay Gatsby",
  },
  {
    "id": "23423533",
    "name": "José Arcadio Buendía",
  },
  {
    "id": "23423534",
    "name": "Max Sendak",
  },
  {
    "id": "23423535",
    "name": "Zaphod Beeblebrox",
  },
  {
    "id": "23423536",
    "name": "Edmund Pevensie",
  }
]

To extract the name, you can use drag-and-drop mapping in the UI, or write the following expression:

{{$input.item.json.name}}