// 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.update({
  index: 'test',
  id: '1',
  body: {
    script: {
      source: 'ctx._source.counter += params.count',
      lang: 'painless',
      params: {
        count: 4
      }
    },
    upsert: {
      counter: 1
    }
  }
})
console.log(response)
----