Revert deployment of extension

const fetch = require('node-fetch');

let url = 'https://api.coralogix.com/mgmt/openapi/v1/extension-deployment/undeploy';

let options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <API_KEY>', 'content-type': 'application/json'},
  body: '{"id":"string","keptExtensionItems":["[]"]}'
};

fetch(url, options)
  .then(res => res.json())
  .then(json => console.log(json))
  .catch(err => console.error('error:' + err));

{
  "failedItems": [
    {
      "itemId": "<string>",
      "remoteId": "<string>",
      "reason": "<string>"
    }
  ],
  "extensionDeployment": {
    "id": "<string>",
    "version": "<string>",
    "itemIds": [
      "[]"
    ],
    "applications": [
      "[]"
    ],
    "subsystems": [
      "[]"
    ]
  }
}