const options = {method: 'POST', headers: {Authorization: 'Bearer <token>'}};

fetch('https://app.facetflux.com/api/v1/diagnostics', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

using RestSharp;


var options = new RestClientOptions("https://app.facetflux.com/api/v1/diagnostics");
var client = new RestClient(options);
var request = new RestRequest("");
request.AddHeader("Authorization", "Bearer <token>");
var response = await client.PostAsync(request);

Console.WriteLine("{0}", response.Content);

HttpResponse<String> response = Unirest.post("https://app.facetflux.com/api/v1/diagnostics")
  .header("Authorization", "Bearer <token>")
  .asString();