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

let url = 'https://api.coralogix.com/mgmt/openapi/v1/incidents:list-incident-events-total-count';

let options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <API_KEY>', 'content-type': 'application/json'},
  body: '{"filter":{"status":["INCIDENT_STATUS_UNSPECIFIED"],"severity":["INCIDENT_SEVERITY_UNSPECIFIED"],"contextualLabels":{"property1":{"contextualLabelValues":["string"]},"property2":{"contextualLabelValues":["string"]}},"name":"string","isMuted":true,"timestamp":{"startTime":"2019-08-24T14:15:22Z","endTime":"2019-08-24T14:15:22Z"},"labels":{"metaLabels":[{"key":"key","value":"value"}],"operator":"FILTER_OPERATOR_OR_OR_UNSPECIFIED"}}}'
};

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

{
  "count": 100,
  "reachedLimit": false
}