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

let url = 'https://api.coralogix.com/mgmt/openapi/v3/alerts/download';

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));

{
  "result": {},
  "error": {
    "code": 123,
    "message": "<string>",
    "details": [
      {
        "@type": "<string>"
      }
    ]
  }
}