const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({productIds: ['<string>'], profileKey: '<string>', language: '<string>'})
};

fetch('https://app.facetflux.com/api/v1/pim/exports/selection', 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/pim/exports/selection");
var client = new RestClient(options);
var request = new RestRequest("");
request.AddHeader("Authorization", "Bearer <token>");
request.AddJsonBody("{\n  \"productIds\": [\n    \"<string>\"\n  ],\n  \"profileKey\": \"<string>\",\n  \"language\": \"<string>\"\n}", false);
var response = await client.PostAsync(request);

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

HttpResponse<String> response = Unirest.post("https://app.facetflux.com/api/v1/pim/exports/selection")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"productIds\": [\n    \"<string>\"\n  ],\n  \"profileKey\": \"<string>\",\n  \"language\": \"<string>\"\n}")
  .asString();