// 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.ingest.simulate({
  pipeline: {
    processors: [
      {
        script: {
          description: "Extract 'tags' from 'env' field",
          lang: "painless",
          source:
            "\n            String[] envSplit = ctx['env'].splitOnToken(params['delimiter']);\n            ArrayList tags = new ArrayList();\n            tags.add(envSplit[params['position']].trim());\n            ctx['tags'] = tags;\n          ",
          params: {
            delimiter: "-",
            position: 1,
          },
        },
      },
    ],
  },
  docs: [
    {
      _source: {
        env: "es01-prod",
      },
    },
  ],
});
console.log(response);
----