curl --request GET \
  --url https://api-dev.narrative.io/mappings/system \
  --header 'Authorization: Bearer <token>'

{
  "records": [
    {
      "id": "ea9dddd2-e3ee-40b5-b03e-c3cd37c8a7f0",
      "attribute_id": 1,
      "created_at": "2021-12-10T00:00:00Z",
      "dataset_id": 3,
      "mapping": {
        "type": "object_mapping",
        "property_mappings": [
          {
            "path": "foo",
            "expression": "upper(`US Kennel ID`)",
            "dependencies": {
              "properties": [
                "US Kennel ID"
              ]
            }
          },
          {
            "path": "bar.baz.qux",
            "expression": "weight * 10000",
            "dependencies": {
              "properties": [
                "weight"
              ]
            }
          }
        ]
      },
      "status": "active",
      "updated_at": "2021-12-10T00:00:01Z",
      "created_by": 1,
      "updated_by": 1,
      "company_id": 100,
      "scope": "global",
      "source": "admin",
      "derived_from": "ea9dddd2-e3ee-40b5-b03e-c3cd37c8a6f0"
    },
    {
      "id": "ea9dddd2-e3ee-40b5-b03e-c3cd37c8a6f0",
      "attribute_id": 1,
      "created_at": "2021-12-10T00:00:00Z",
      "dataset_id": 3,
      "mapping": {
        "type": "value_mapping",
        "expression": "foo bar baz",
        "dependencies": {
          "properties": []
        }
      },
      "status": "archived",
      "updated_at": "2021-12-10T00:00:01Z",
      "created_by": 1,
      "updated_by": 2,
      "company_id": 100,
      "scope": "global",
      "source": "admin",
      "derived_from": null
    }
  ]
}