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

let url = 'https://api.coralogix.com/mgmt/openapi/api/v2/events2metrics/limits';

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));

{
  "companyId": "<string>",
  "labelsLimit": 123,
  "permutationsLimit": {
    "limit": 123,
    "used": 123
  },
  "metricsLimit": {
    "limit": 123,
    "used": 123
  }
}