// This file is autogenerated, DO NOT EDIT
// Use `node scripts/generate-docs-examples.js` to generate the docs examples

[source, js]
----
const response = await client.transform.previewTransform({
  source: {
    index: "kibana_sample_data_ecommerce",
  },
  pivot: {
    group_by: {
      customer_id: {
        terms: {
          field: "customer_id",
        },
      },
    },
    aggregations: {
      last: {
        top_metrics: {
          metrics: [
            {
              field: "email",
            },
            {
              field: "customer_first_name.keyword",
            },
            {
              field: "customer_last_name.keyword",
            },
          ],
          sort: {
            order_date: "desc",
          },
        },
      },
    },
  },
});
console.log(response);
----