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

let url = 'https://api.coralogix.com/mgmt/openapi/v3/events:statistics';

let options = {method: 'GET', headers: {Authorization: 'Bearer <API_KEY>'}};

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

{
  "cxEventLabelsFieldStatistics": [
    {
      "key": "<string>",
      "value": {
        "fieldStatistics": [
          {
            "key": "<string>",
            "value": "<string>"
          }
        ]
      }
    }
  ],
  "cxEventMetadataFieldStatistics": [
    {
      "key": "<string>",
      "value": {
        "fieldStatistics": [
          {
            "key": "<string>",
            "value": "<string>"
          }
        ]
      }
    }
  ]
}