// 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.indices.create({
  index: "my-index",
  mappings: {
    properties: {
      "@timestamp": {
        format: "strict_date_optional_time||epoch_second",
        type: "date",
      },
      message: {
        type: "wildcard",
      },
    },
  },
});
console.log(response);
----