const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    webHook: {
      url: '<string>',
      headers: {},
      customSettings: {httpMethod: 'GET', queryParams: {}, bodyFormat: {template: '<string>'}}
    },
    webhookType: 'UnknownWebHookPayload',
    toolName: '<string>',
    toolArguments: {},
    agentAdditionalData: {},
    callAdditionalData: {}
  })
};

fetch('https://blackbox.dasha.ai/api/v1/webhooks/test', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "success": true,
  "httpStatus": 123,
  "httpStatusText": "<string>",
  "responseData": "<unknown>",
  "validationResult": {
    "isValid": true,
    "errors": [
      "<string>"
    ]
  },
  "error": "<string>",
  "timeTaken": 123
}